X-ray microscopy is three-dimensional and non-destructive, allowing for repeated imaging of the same sample for in situ or 4D studies, and providing the ability ...

Page contents: Historic (1995) Giant Fresnel Lens Page; FAQ (including where you can get your giant fresnel lens!) The New Lens ...

In laser science, regenerative amplification is a process used to generate short but strong pulses of laser light. It is based on a pulse trapped in a laser resonator, which stays in there until it extracts all of the energy stored in the amplification medium. Pulse trapping and dumping is done using a polarizer and a Pockels cell, which acts like a quarter wave-plate.

With eyepieces it's telescope focal length / eyepiece focal length but what about cameras?

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Reflection, Refraction, and Diffraction. Reflection. Reflection – wave strikes a surface and is bounced back. Law of Reflection: angle of incidence = angle of ...

Feb 7, 2015 — Covert existing windows to diamond pane frames using lead tape.

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2703008 from Phoenix Contact at RS.

Regenerative amplifier can also operate at Radio Frequency,[1] using the feedback between the transistor's source and gate to transform a capacitive impedance on the transistor's source to a negative resistance on its gate. Compared to voltage-gated amplifiers, this "negative resistance amplifier" will only require a tiny amount of power to achieve high gain.

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20181215 — Longitudinal modes are standing waves along the optical axis of the laser see figure 18. Figure 18: Two distinct longitudinal modes operating ...

When a pulse with vertical polarization is reflected off the polarizer, after a double pass through the Pockels cell it will become horizontally polarized and will be transmitted by the polarizer. After a double pass through the amplification medium, having the same horizontal polarization, the pulse will be transmitted by the polarizer. If a voltage is applied to the Pockels cell, a double pass through it will change the polarization of the pulse to vertical, so the pulse will be reflected off the polarizer and will exit the cavity. If no voltage is applied, then a double pass through the Pockels cell will not change the polarization and the pulse will get trapped inside the cavity of the resonator. The pulse can stay in the cavity until it reaches saturation or until it extracts most of the energy stored in the gain medium. When the pulse will achieve a high amplification, a second voltage can be applied to the Pockels cell in order to release the pulse from the resonator.