Chevron-Type Dielectric Filter Set for Efficient Narrow-Band Laser Line Rejection in Raman Microspectrometers
- 1 November 1994
- journal article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 48 (11) , 1399-1402
- https://doi.org/10.1366/0003702944028056
Abstract
A chevron-type dielectric bandpass filter set is described which combines laser line rejection by a factor >108 with a high throughput of Raman scattered light (70%). The rejection bandwidth is 60 cm−1 full width at half-maximum. Stokes and anti-Stokes Raman spectra can be recorded simultaneously from approximately 20 cm−1 from the laser line. The filter set, moreover, takes care of efficient coupling of microscope and spectrometer, replacing an otherwise necessary beamsplitter.Keywords
This publication has 13 references indexed in Scilit:
- Volume holographic narrow-band optical filterOptics Letters, 1993
- Performance of a Holographic Supernotch FilterApplied Spectroscopy, 1993
- Potassium Vapor Near-IR Laser Line Rejection Filter for Raman SpectroscopyApplied Spectroscopy, 1993
- Ultraviolet Raman Spectroscopy Using an Atomic Vapor Filter and Incoherent ExcitationApplied Spectroscopy, 1992
- Holographic Notch Filter for Low-Wavenumber Stokes and Anti-Stokes Raman SpectroscopyApplied Spectroscopy, 1991
- A high-throughput Raman notch filter setReview of Scientific Instruments, 1990
- The Utilization of a Holographic Bragg Diffraction Filter for Rayleigh Line Rejection in Raman SpectroscopyApplied Spectroscopy, 1990
- Development of a New Optical Wavelength Rejection Filter: Demonstration of its Utility in Raman SpectroscopyApplied Spectroscopy, 1984
- The third generation of multichannel Raman spectrometersRevue de Physique Appliquée, 1984
- Raman spectroscopy with intensified vidicon detectors: A study of intact bovine lens proteinsJournal of Raman Spectroscopy, 1978