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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 30 — Oct. 20, 1992
  • pp: 6371–6375

Line focusing in micro-Raman spectroscopy

M. Ivanda and K. Furić  »View Author Affiliations


Applied Optics, Vol. 31, Issue 30, pp. 6371-6375 (1992)
http://dx.doi.org/10.1364/AO.31.006371


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Abstract

In a microscope of a micro-Raman spectrometer a cylindrical lens is introduced to form a line-focus microprobe (LFMP). The dimensions of the LFMP are 0.66 × 167 μm. The lateral spatial resolution of Raman scattering with the LFMP is equal to the spatial resolution of the point-focus microprobe (PFMP). It is shown that the LFMP system enables measurements with a laser power density that is 320 times lower than the PFMP. For the same laser power density in both types of illumination, the LFMP Raman spectra give approximately 320 or ≈ 18 times better signal-to-noise ratio.

© 1992 Optical Society of America

History
Original Manuscript: May 20, 1991
Published: October 20, 1992

Citation
M. Ivanda and K. Furić, "Line focusing in micro-Raman spectroscopy," Appl. Opt. 31, 6371-6375 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-30-6371


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