Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 71,
  • Issue 5,
  • pp. 1025-1038
  • (2017)

Remote Raman Efficiencies and Cross-Sections of Organic and Inorganic Chemicals

Not Accessible

Your library or personal account may give you access

Abstract

We determined Raman cross-sections of various organic liquids and inorganic polyatomic ions in aqueous solutions with a 532 nm pulsed laser using remote Raman systems developed at the University of Hawaii. Using a calibrated integrating sphere as a light source, we converted the intensity counts in the spectrum of the light from the integrating sphere measured with UH remote Raman instrument to spectral radiance. From these data, a response function of the remote Raman instrument was obtained. With the intensity-calibrated instrument, we collected remote Raman data from a standard 1 mm path length fused silica spectrophotometer cell filled with cyclohexane. The measured value of the differential Raman cross-section for the 801 cm−1 vibrational mode of cyclohexane is 4.55 × 10−30 cm2 sr−1 molecule−1 when excited by a 532 nm laser, in good agreement with the values reported in the literature. Using the measured cyclohexane Raman cross-section as a reference and relative Raman mode intensities of the various ions and organic liquids, we calculated the Raman cross-sections of the strongest Raman lines of nitrate, sulfate, carbonate, phosphate ions, and organic liquids by maintaining same experimental conditions for remote Raman detection. These relative Raman cross-section values will be useful for estimating detection capabilities of remote Raman systems for planetary exploration.

© 2016 The Author(s)

PDF Article
More Like This
Remote Raman measurements of minerals, organics, and inorganics at 430  m range

Tayro E. Acosta-Maeda, Anupam K. Misra, Lloyd G. Muzangwa, Genesis Berlanga, Dalton Muchow, John Porter, and Shiv K. Sharma
Appl. Opt. 55(36) 10283-10289 (2016)

Optical water quality model of Lake Ontario. 1: Determination of the optical cross sections of organic and inorganic particulates in Lake Ontario

R. P. Bukata, J. H. Jerome, J. E. Bruton, S. C. Jain, and H. H. Zwick
Appl. Opt. 20(9) 1696-1703 (1981)

Measurement of the Raman scattering cross section of the breathing mode in KDP and DKDP crystals

Stavros G. Demos, Rajesh N. Raman, Steven T. Yang, Raluca A. Negres, Kathleen I. Schaffers, and Mark A. Henesian
Opt. Express 19(21) 21050-21059 (2011)

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