Calculating Exposure Time The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

Setup The setup for a transmission hologram is much more advanced than that of a reflection setup. As you can see from the diagram below, this setup has: a beam splitter, microscope objectives/spatial filters, and 3 additional mirrors. The beam splitter seperates the initial beam from the laser into two beams that create a reference beam and object beam. The reference beam is the light that illuminates the plate and the object beam illuminates the object (pretty simple). The initial setup, however, does not need to be exact just yet. Start by "guesstimating" the location of the mirrors and microscope objectives. The easiest way to determine the locations of the equipment is to choose a spot for the object, usually the side of the table near the center, and work backwards towards the laser. This way, it will be easier to align the beam to hit its target without having to move equipment around. The beam splitter should be 6 to 12 inches away from the output of the laser. Although different beam splitters can be used, the most convenient one to use is a variable beam splitter. This will allow the person to easily adjust the beam powers of both the reference and object beam to obtain the optimal power ratio. Distances and Power ratios The optimal power ratio is 4:1 in which the reference beam is four times more powerful than the object beam. However, it is highly recommended that the distances are adjusted first. This will prevent having to constantly remeasure the distances after the powers are within their limits. Once the equipment is approx. where they need to be, lightly secure them to the table. Take a piece of string and measure the distance from the beam splitter to the holographic plate/film for both the object beam and reference beam. In order to get a bright, clear hologram, these distances must be exactly the same. Hints:Meaure the reference beam first to make an established distance. Make sure it is long enough. Second, when measuring the object beam, only adjust M2 or M3 by moving them closer together or farther apart by 1/2 the difference in distance with the reference beam. If the proper distance cannot be made equal to the reference beam, adjust M1 as needed to make the distances equal. Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio. Calculating Exposure Time The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

The optimal power ratio is 4:1 in which the reference beam is four times more powerful than the object beam. However, it is highly recommended that the distances are adjusted first. This will prevent having to constantly remeasure the distances after the powers are within their limits. Once the equipment is approx. where they need to be, lightly secure them to the table. Take a piece of string and measure the distance from the beam splitter to the holographic plate/film for both the object beam and reference beam. In order to get a bright, clear hologram, these distances must be exactly the same. Hints:Meaure the reference beam first to make an established distance. Make sure it is long enough. Second, when measuring the object beam, only adjust M2 or M3 by moving them closer together or farther apart by 1/2 the difference in distance with the reference beam. If the proper distance cannot be made equal to the reference beam, adjust M1 as needed to make the distances equal. Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio. Calculating Exposure Time The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

Holoor

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The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

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Beamshaper

The beam splitter seperates the initial beam from the laser into two beams that create a reference beam and object beam. The reference beam is the light that illuminates the plate and the object beam illuminates the object (pretty simple). The initial setup, however, does not need to be exact just yet. Start by "guesstimating" the location of the mirrors and microscope objectives. The easiest way to determine the locations of the equipment is to choose a spot for the object, usually the side of the table near the center, and work backwards towards the laser. This way, it will be easier to align the beam to hit its target without having to move equipment around. The beam splitter should be 6 to 12 inches away from the output of the laser. Although different beam splitters can be used, the most convenient one to use is a variable beam splitter. This will allow the person to easily adjust the beam powers of both the reference and object beam to obtain the optimal power ratio.

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Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

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Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio.

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The setup for a transmission hologram is much more advanced than that of a reflection setup. As you can see from the diagram below, this setup has: a beam splitter, microscope objectives/spatial filters, and 3 additional mirrors. The beam splitter seperates the initial beam from the laser into two beams that create a reference beam and object beam. The reference beam is the light that illuminates the plate and the object beam illuminates the object (pretty simple). The initial setup, however, does not need to be exact just yet. Start by "guesstimating" the location of the mirrors and microscope objectives. The easiest way to determine the locations of the equipment is to choose a spot for the object, usually the side of the table near the center, and work backwards towards the laser. This way, it will be easier to align the beam to hit its target without having to move equipment around. The beam splitter should be 6 to 12 inches away from the output of the laser. Although different beam splitters can be used, the most convenient one to use is a variable beam splitter. This will allow the person to easily adjust the beam powers of both the reference and object beam to obtain the optimal power ratio. Distances and Power ratios The optimal power ratio is 4:1 in which the reference beam is four times more powerful than the object beam. However, it is highly recommended that the distances are adjusted first. This will prevent having to constantly remeasure the distances after the powers are within their limits. Once the equipment is approx. where they need to be, lightly secure them to the table. Take a piece of string and measure the distance from the beam splitter to the holographic plate/film for both the object beam and reference beam. In order to get a bright, clear hologram, these distances must be exactly the same. Hints:Meaure the reference beam first to make an established distance. Make sure it is long enough. Second, when measuring the object beam, only adjust M2 or M3 by moving them closer together or farther apart by 1/2 the difference in distance with the reference beam. If the proper distance cannot be made equal to the reference beam, adjust M1 as needed to make the distances equal. Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio. Calculating Exposure Time The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

Distances and Power ratios The optimal power ratio is 4:1 in which the reference beam is four times more powerful than the object beam. However, it is highly recommended that the distances are adjusted first. This will prevent having to constantly remeasure the distances after the powers are within their limits. Once the equipment is approx. where they need to be, lightly secure them to the table. Take a piece of string and measure the distance from the beam splitter to the holographic plate/film for both the object beam and reference beam. In order to get a bright, clear hologram, these distances must be exactly the same. Hints:Meaure the reference beam first to make an established distance. Make sure it is long enough. Second, when measuring the object beam, only adjust M2 or M3 by moving them closer together or farther apart by 1/2 the difference in distance with the reference beam. If the proper distance cannot be made equal to the reference beam, adjust M1 as needed to make the distances equal. Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio. Calculating Exposure Time The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts.

Hints:Meaure the reference beam first to make an established distance. Make sure it is long enough. Second, when measuring the object beam, only adjust M2 or M3 by moving them closer together or farther apart by 1/2 the difference in distance with the reference beam. If the proper distance cannot be made equal to the reference beam, adjust M1 as needed to make the distances equal. Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio.

Home Transmission Holography Equipment Needed: The following equipment is similar to that from the reflection hologram equipment, but includes a few extras. Ophir power meter (PD-200) 20 mW HeNe laser, 20 mW power supply Cylindrical laser mount Model 45 rod (14 in.) 8 Variable post holders (VPH-4), 8 posts (M-SP-4) 9 slotted bases (B-2S) Variable lens mount 50-50 beam splitter 2 microscope objectives (40x and 60x) 4 first-surface plane-mirrors Holographic plate/film shiny object 5-10 beam blocks 3 x 5ft. air table level and a spool of string Setup The setup for a transmission hologram is much more advanced than that of a reflection setup. As you can see from the diagram below, this setup has: a beam splitter, microscope objectives/spatial filters, and 3 additional mirrors. The beam splitter seperates the initial beam from the laser into two beams that create a reference beam and object beam. The reference beam is the light that illuminates the plate and the object beam illuminates the object (pretty simple). The initial setup, however, does not need to be exact just yet. Start by "guesstimating" the location of the mirrors and microscope objectives. The easiest way to determine the locations of the equipment is to choose a spot for the object, usually the side of the table near the center, and work backwards towards the laser. This way, it will be easier to align the beam to hit its target without having to move equipment around. The beam splitter should be 6 to 12 inches away from the output of the laser. Although different beam splitters can be used, the most convenient one to use is a variable beam splitter. This will allow the person to easily adjust the beam powers of both the reference and object beam to obtain the optimal power ratio. Distances and Power ratios The optimal power ratio is 4:1 in which the reference beam is four times more powerful than the object beam. However, it is highly recommended that the distances are adjusted first. This will prevent having to constantly remeasure the distances after the powers are within their limits. Once the equipment is approx. where they need to be, lightly secure them to the table. Take a piece of string and measure the distance from the beam splitter to the holographic plate/film for both the object beam and reference beam. In order to get a bright, clear hologram, these distances must be exactly the same. Hints:Meaure the reference beam first to make an established distance. Make sure it is long enough. Second, when measuring the object beam, only adjust M2 or M3 by moving them closer together or farther apart by 1/2 the difference in distance with the reference beam. If the proper distance cannot be made equal to the reference beam, adjust M1 as needed to make the distances equal. Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio. Calculating Exposure Time The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

Equipment Needed: The following equipment is similar to that from the reflection hologram equipment, but includes a few extras. Ophir power meter (PD-200) 20 mW HeNe laser, 20 mW power supply Cylindrical laser mount Model 45 rod (14 in.) 8 Variable post holders (VPH-4), 8 posts (M-SP-4) 9 slotted bases (B-2S) Variable lens mount 50-50 beam splitter 2 microscope objectives (40x and 60x) 4 first-surface plane-mirrors Holographic plate/film shiny object 5-10 beam blocks 3 x 5ft. air table level and a spool of string Setup The setup for a transmission hologram is much more advanced than that of a reflection setup. As you can see from the diagram below, this setup has: a beam splitter, microscope objectives/spatial filters, and 3 additional mirrors. The beam splitter seperates the initial beam from the laser into two beams that create a reference beam and object beam. The reference beam is the light that illuminates the plate and the object beam illuminates the object (pretty simple). The initial setup, however, does not need to be exact just yet. Start by "guesstimating" the location of the mirrors and microscope objectives. The easiest way to determine the locations of the equipment is to choose a spot for the object, usually the side of the table near the center, and work backwards towards the laser. This way, it will be easier to align the beam to hit its target without having to move equipment around. The beam splitter should be 6 to 12 inches away from the output of the laser. Although different beam splitters can be used, the most convenient one to use is a variable beam splitter. This will allow the person to easily adjust the beam powers of both the reference and object beam to obtain the optimal power ratio. Distances and Power ratios The optimal power ratio is 4:1 in which the reference beam is four times more powerful than the object beam. However, it is highly recommended that the distances are adjusted first. This will prevent having to constantly remeasure the distances after the powers are within their limits. Once the equipment is approx. where they need to be, lightly secure them to the table. Take a piece of string and measure the distance from the beam splitter to the holographic plate/film for both the object beam and reference beam. In order to get a bright, clear hologram, these distances must be exactly the same. Hints:Meaure the reference beam first to make an established distance. Make sure it is long enough. Second, when measuring the object beam, only adjust M2 or M3 by moving them closer together or farther apart by 1/2 the difference in distance with the reference beam. If the proper distance cannot be made equal to the reference beam, adjust M1 as needed to make the distances equal. Once the distances are equal, use the level on the laser to make the output beam perfectly horizontal. This will make sure that power adjustments will not redirect the beam somewhere else. When the beam is level, angle the mirrors to illuminate the plate and object as well as possible. Mount the power meter where the holographic plate would go so that the sensor faces the object. Block the object beam with a beam block and measure the power of the reference beam. Repeat for the power of the object beam. Adjust the beam splitter as needed to obtain the 4:1 ratio. Calculating Exposure Time The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/

The formuala for calculating exposure time, if using PFG-01 film which has a sensitivity of 100 uJ per sq. cm. and the ophir power meter listed above, is as follows: T = 78.5 uJ / P (W) For this equation: T = exposure time in seconds and P = total power at the holographic plate in watts. Shooting and Developing The shooting and developing of the hologram is the same as with the reflection hologram only the exposure used is the one calculated as opposed to 2 seconds. Once the hologram is shot and developed, it can only be viewed, however, with laser light. To do this, simply place the hologram back where it was shot and block the object beam. The reference beam will create the 45 degree angle needed to view the hologram. Above images provided by: http://www.phys.ufl.edu/courses/phy4803L/ holography/ref_illum.jpg http://www.techsoft.no/holography/