NASA NTRS · 19900000578
Fiber-Optic Coupler And Dynamic-Range Enhancer For CARS
Abstract
Simpler equipment yields higher coupling efficiency with fewer adjustments. In improved scheme for coupling coherent anti-Stokes Raman spectroscopy (CARS) signal from measurement volume to monochromator, optical fiber and two lenses used in place of previous system. Cylindrical lenses focus light from optical fiber into beam of approximately rectangular cross section at input plane of monochromator. Optical wedge diverts part of beam in monochromator to produce less-intense secondary image.
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Cutler, Andrew D.. 1990-11-01. Fiber-Optic Coupler And Dynamic-Range Enhancer For CARS. https://ntrs.nasa.gov/citations/19900000578
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