InPhotonics: Polarization Probe

Polarization Probe

The polarization probe has two polarization channels which enable polarization Raman spectra to be acquired. Polarization Raman uses polarized laser excitation and polarization filters in each of two collection fibers with the polarization filter in one fiber oriented parallel to the polarized excitation laser and the polarization filter in the other fiber oriented perpendicular to the polarized excitation laser. The resulting spectral information gives an insight into molecular orientation and vibrational symmetry. It is used to understand the orientation of molecules in organized environments such as crystal lattices.

Features and Specifications

Spectral Range	200 - 3900 cm^-1 (Stokes)*
Excitation Wavelengths	514, 532, 632, 670, "785" (782-788), 830 nm (laser must be +/- 1.5 nm of specified wavelength, except for 785 nm version)
Working Distance	7.5 mm (std.), 5 or 10 mm optional
Fiber Configuration	Permanently-aligned combination of two single fibers (105 µm excitation fiber, 200 µm collection fiber standard) with filtering and steering micro-optics, N.A. 0.22, in rugged polyurethane jacket.
Filter Efficiency	Patented design for complete filtering of the laser line and quartz spectral contributions from both input and output fibers (O.D. > 6 at laser wavelength)
Physical Resistance	Durable probe can be used up to 80ºC
Cable Length	1.5 m
Safety Features	Manual safety shutter^† to block laser output; Class I sample holders available
Coupling System	Available with FC (std.) or SMA 905 connectors
Retail Price	call

*Ultimate spectral range will depend upon spectrograph and detector.
†U.S. patent 6,621,574
Prices and specifications subject to change without notice.