CHEVRON-TYPE DIELECTRIC FILTER SET FOR EFFICIENT NARROW-BAND LASER LINE REJECTION IN RAMAN MICROSPECTROMETERS

Authors
PUPPELS GJ DEGRAUW CG PLATE MBJT GREVE J
Citation
Gj. Puppels et al., CHEVRON-TYPE DIELECTRIC FILTER SET FOR EFFICIENT NARROW-BAND LASER LINE REJECTION IN RAMAN MICROSPECTROMETERS, Applied spectroscopy, 48(11), 1994, pp. 1399-1402
Citations number
14
Categorie Soggetti
Instument & Instrumentation",Spectroscopy
Journal title
Applied spectroscopy → ACNP
ISSN journal
00037028
Volume
48
Issue
11
Year of publication
1994
Pages
1399 - 1402
Database
ISI
SICI code
0003-7028(1994)48:11<1399:CDFSFE>2.0.ZU;2-U
Abstract
A chevron-type dielectric bandpass filter set is described which combi nes laser line rejection by a factor >10(8) 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 re corded simultaneously from approximately 20 cm(-1) from the laser line . The filter set, moreover, takes care of efficient coupling of micros cope and spectrometer, replacing an otherwise necessary beamsplitter.