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₪ Partial Reflective Coatings

Single Wavelength Band Partial Reflective Coatings (SPR)

When a narrow wavelength radiation is incident on this coating, part of the radiation is reflected and part is transmitted. Such coating always show a high reflectivity for S-Polarisation radiation and high transmission for P-Polarisation radiations. The main application of this coating is to form a beamsplitter with 45° angle of incident. The non-Polarising beamsplitter plate and cube which are shown in the chapter "Beamsplitter" are coated with such coatings.

l R0= 90%±2.0%@1064nm
l R0= 50.0%±2.0%@632.8nm
 
Broadband Partial Reflective Coatings (BPR)

This coating has similar performance of to that of the SPR coating (Single Wavelength Band Partial Reflective Coatings), but there is an obvious difference between them. That is, it can be applied to split the incident radiation over a wide spectrum. The wavelength range of light, partial reflectivity and partial transmission can be accurately controlled to customer's specifications.

Broadband Partial Reflective Coatings on plate(Part No.:BPR-PT)
Broadband Partial Reflective Coatings on cube(Part No.:BPR-CB)
l R= 50%±5.0%@650-900nm
l R= 50.0%±5.0%@450-700nm
 


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Interesting laser and optics facts ...
In 1961 a group of scientists demonstrated that non-linear crystals produce harmonic 'overtones' when quartz crystal converted red light into blue light.

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