An open-path laser transmissometer for atmospheric extinction measurements

P. M.Satheesh Chandran, C. P. Krishnakumar, Wangki Yuen, Mark J. Rood, Ravi Varma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A transmissometer is an optical instrument which measures transmitted intensity of monochromatic light over a fixed pathlength. Prototype of a simple laser transmissometer has been developed for transmission (or extinction) measurements through suspended absorbers and scatterers in the atmosphere over tens of meters. Instrument consists of a continuous green diode pumped solid state laser, transmission optics, photodiode detectors and A/D data acquisition components. A modulated laser beam is transmitted and subsequently reflected and returned to the unit by a retroreflecting mirror assembly placed several tens of meters away. Results from an open-path field measurement of the instrument are described.

Original languageEnglish (US)
Title of host publicationOptics
Subtitle of host publicationPhenomena, Materials, Devices, and Characterization, OPTICS 2011: International Conference on Light
Pages288-290
Number of pages3
DOIs
StatePublished - 2011
EventInternational Conference on Light Optics: Phenomena, Materials, Devices, and Characterization, OPTICS 2011 - Calicut, Kerala, India
Duration: May 23 2011May 25 2011

Publication series

NameAIP Conference Proceedings
Volume1391
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on Light Optics: Phenomena, Materials, Devices, and Characterization, OPTICS 2011
Country/TerritoryIndia
CityCalicut, Kerala
Period5/23/115/25/11

Keywords

  • Atmospheric Transmission
  • Atmospheric Visibility
  • Scattering and Absorption
  • Transmissometer

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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