Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 46,
  • Issue 7,
  • pp. 1085-1091
  • (1992)

Remote-Raman Spectroscopy at Intermediate Ranges Using Low-Power cw Lasers

Not Accessible

Your library or personal account may give you access


A portable Raman system is described that has been developed for line-of-site spectral measurements of remotely located samples at intermediate ranges. Raman spectra were measured at distances up to 20 m with the use of a 40-mm-diameter collection optic (<i>f</i>/500) and at 16.7 m with a 22-mm-diameter collection optic (<i>f</i>/750). In all cases, low-power cw lasers were used with powers ranging from 23 to 100 mW. The system consists of a small <i>f</i>/4 image-corrected spectrograph with a liquid-nitrogen-cooled CCD detector and has been demonstrated with both an argon-ion laser, emitting at 488 nm, and an 809-nm diode laser. Applications of the system include monitoring of organic and inorganic compounds at toxic waste sites during remediation, process monitoring, and remote detection of highly toxic materials.

PDF Article

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
Login to access Optica Member Subscription

Select as filters

Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved