Effective suppression of stray light in rotational coherent anti-stokes Raman spectroscopy using an angle-tuned short-wave-pass filter.
Bohlin, Alexis LU and Bengtsson, Per-Erik LU
(2010)
In Applied Spectroscopy
64(8).
p.964-966
- Abstract
- Stray light interference is a common problem in spontaneous rotational Raman spectroscopy and rotational coherent anti-Stokes Raman spectropscopy (CARS). The reason is that the detected spectrum appears in the spectral vicinity of the probe beam wavelength, and stray light at this wavelength from optics and surfaces is hard to suppress. In this Note, efficient suppression of stray light is demonstrated for rotational CARS measurements using a commercially available short-wave-pass filter. By angle-tuning this filter with a specified cut-off wavelength at 561 nm, the cut-off wavelength could be tuned to a desired spectral position so that more than 80% transmission is achieved as close as 15 cm(-1) (approximately 0.4 nm) from the probe beam... (More)
- Stray light interference is a common problem in spontaneous rotational Raman spectroscopy and rotational coherent anti-Stokes Raman spectropscopy (CARS). The reason is that the detected spectrum appears in the spectral vicinity of the probe beam wavelength, and stray light at this wavelength from optics and surfaces is hard to suppress. In this Note, efficient suppression of stray light is demonstrated for rotational CARS measurements using a commercially available short-wave-pass filter. By angle-tuning this filter with a specified cut-off wavelength at 561 nm, the cut-off wavelength could be tuned to a desired spectral position so that more than 80% transmission is achieved as close as 15 cm(-1) (approximately 0.4 nm) from the probe beam wavelength of 532.0 nm, while the intensity at this wavelength is suppressed by two orders of magnitude. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1665211
- author
- Bohlin, Alexis
LU
and Bengtsson, Per-Erik
LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Spectroscopy
- volume
- 64
- issue
- 8
- pages
- 964 - 966
- publisher
- Society for Applied Spectroscopy
- external identifiers
-
- wos:000280894300018
- pmid:20719063
- scopus:77956238597
- ISSN
- 1943-3530
- language
- English
- LU publication?
- yes
- id
- ba472ca8-d32a-4663-8edc-c63ff0925306 (old id 1665211)
- alternative location
- http://www.opticsinfobase.org/abstract.cfm?URI=as-64-8-964
- date added to LUP
- 2016-04-01 09:51:04
- date last changed
- 2022-01-25 17:18:42
@article{ba472ca8-d32a-4663-8edc-c63ff0925306,
abstract = {{Stray light interference is a common problem in spontaneous rotational Raman spectroscopy and rotational coherent anti-Stokes Raman spectropscopy (CARS). The reason is that the detected spectrum appears in the spectral vicinity of the probe beam wavelength, and stray light at this wavelength from optics and surfaces is hard to suppress. In this Note, efficient suppression of stray light is demonstrated for rotational CARS measurements using a commercially available short-wave-pass filter. By angle-tuning this filter with a specified cut-off wavelength at 561 nm, the cut-off wavelength could be tuned to a desired spectral position so that more than 80% transmission is achieved as close as 15 cm(-1) (approximately 0.4 nm) from the probe beam wavelength of 532.0 nm, while the intensity at this wavelength is suppressed by two orders of magnitude.}},
author = {{Bohlin, Alexis and Bengtsson, Per-Erik}},
issn = {{1943-3530}},
language = {{eng}},
number = {{8}},
pages = {{964--966}},
publisher = {{Society for Applied Spectroscopy}},
series = {{Applied Spectroscopy}},
title = {{Effective suppression of stray light in rotational coherent anti-stokes Raman spectroscopy using an angle-tuned short-wave-pass filter.}},
url = {{http://www.opticsinfobase.org/abstract.cfm?URI=as-64-8-964}},
volume = {{64}},
year = {{2010}},
}