Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 41,
  • Issue 4,
  • pp. 708-709
  • (1987)

Hadamard Transform Raman Spectroscopy in the Near-Infrared — A Suggestion

Not Accessible

Your library or personal account may give you access

Abstract

There has been much interest in the possibility of securing, for Raman spectroscopy, the multiplex advantage that characterizes Fourier transform infrared spectroscopy. An essential prerequisite before any multiplex advantage can be realized is that the Rayleigh line, and stray light at the excitation wavelength, be effectively removed before the Raman light enters the multiplexing device. Even if this is done, Raman observations in the visible region are not likely to gain from the use of a multiplex method, because the signal-related shot noise usually exceeds the detector noise and is the dominant source of noise in the recorded spectrum. An important case, however, where the use of a multiplex method <i>is</i> expected to yield a significant signal-to-noise (S/N) advantage is that of Raman spectra excited and observed in the near-infrared (NIR) spectral region, provided (as before) the Rayleigh line is effectively removed prior to multiplexing.

PDF Article
More Like This
Fourier Transform vs Hadamard Transform Spectroscopy

Tomas Hirschfeld and Gerry Wyntjes
Appl. Opt. 12(12) 2876-2880 (1973)

Multicomponent blood analysis by near-infrared Raman spectroscopy

Andrew J. Berger, Tae-Woong Koo, Irving Itzkan, Gary Horowitz, and Michael S. Feld
Appl. Opt. 38(13) 2916-2926 (1999)

1064  nm dispersive Raman spectroscopy of tissues with strong near-infrared autofluorescence

Chetan A. Patil, Isaac J. Pence, Chad A. Lieber, and Anita Mahadevan-Jansen
Opt. Lett. 39(2) 303-306 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved