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Ramanspectroscopy principle

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Ramanspectroscopy PDF

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Established in 1993, Holmarc Opto-Mechatronics Ltd manufactures variety of scientific and engineering instruments for research, industry and education.

We try improving the quality of our products for every consignment we dispatch. Our customers can expect to receive better products each time a purchase order is placed with us.

What is a raman spectrometerin chemistry

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Highly sensitive (0.1 -6500ms), low noise, cooled CCD is ideal as a detector for Raman spectrum studies. Czerny Turner design is applied in the spectrometer with precision holographic grating as dispersion element. The control electronic devices convert the optical dispersion to electronic pulses which is transmitted to computer via USB.

In CCD based Raman spectrometer, sample is kept in cuvette accompanied by the mechanical chamber with DPSS laser (532nm). The vibrational state of molecule while relaxing the high energy state re-emits the radiation in all directions. Spectrometer is positioned in such a way that laser beam collide at the cuvette perpendicularly. Notch filter is used in front of the spectrometer to avoid Rayleigh scattering so that Raman radiations are measured efficiently.

Ramanspectroscopy instrumentation

It is based on the inelastic scattering of incident radiation through its interaction with vibrating molecules. It probes the molecular vibrations. This will produce a different range of frequencies, namely intense stokes and anti stokes, which have higher frequency than the incident radiation along Rayleigh line. Rayleigh and Raman scattering can be explained both classically and quantum mechanically.

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The software used to interpret the data is user friendly. Regression / curve fit algorithms ( Newton - Raphson numerical analysis, Levenberg Marquardt algorithms, etc ) are used. Savitzky – Golay filtering / Box car smoothing purposes, etc are the features of the software. Material library is provided for customized versions.

What is a raman spectrometerused for

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What is a raman spectrometerand how does it work

Holmarc's CCD Based Laser Raman Spectrometer apparatus (Model No: HO-ED-S-06A) is an apparatus designed for recording Raman spectra of both solids and liquid samples. Raman spectroscopy is a scattering technique. It is based on Raman Effect, i.e., frequency of a small fraction of scattered radiation is different from frequency of monochromatic incident radiation.

Raman SpectrometerPrice

Our core competency is in prototype development and low volume production of opto-mechanical devices and systems where skilled labour is the major input. Our location in INDIA enables us to be the most cost effective in this field of activity compared to any other company in the world.

B.7., H.M.T. Industrial Estate H.M.T. P.O, Kalamassery, Kochi Kerala, India - 683 503    +91 938-863-2098    sales@holmarc.com    Mon - Sat : 9 am to 5 pm

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Product warranty: Our warranty for all our mechanical components and systems are ONE year from the date of shipment. Repair or replacement will be made free of charge for products with defects in material and workmanship during this period. For our optical components, our warranty is 30 days from the date of shipment. Defective items will be replaced free of cost. The customer must notify any defect in optical components within 48 hours of receipt. For all warranty replacement, a written statement with an authorized signature indicating the reason for rejection attaching test reports are requested to accompany the returned parts. All defective items must be returned in their original shipping container within 10 days of the date of shipment.

Ours is an organisation dedicated for the design, development and manufacture of optics, opto-mechanics, educational products and positioning devices.

We have in-house infrastructure capabilities for all the processes involved in the manufacture of our products. This helps us to have total control of quality in our products and services.

Get in Touch     B.7., H.M.T. Industrial Estate H.M.T. P.O, Kalamassery, Kochi Kerala, India - 683 503    +91 938-863-2098    sales@holmarc.com    Mon - Sat : 9 am to 5 pm