Air Jet characterization using photo-EMF sensors and Q-switched laser pulses

Chen Chia Wang, Sudhir Trivedi, Feng Jin, Greg Elliott, Jacob Khurgin, James F. Meyers

Research output: Contribution to conferencePaperpeer-review


The capability of photo-electromotiveforce (EMF) sensors to monitor high-speed targets was experimentally demonstrated. Q-switched, frequency doubled Nd:YAG laser with pulse width of 10 ns and 10 Hz repetition rate was used. Neutral density filters were used to attenuate the laser power to avoid saturation of electronic circuit detection. Single-shot (∼10 ns) measurement of target speed was achieved and photo-EMF sensor was able to detect air jet speeds in excess of 100 m/s.

Original languageEnglish (US)
Number of pages2
StatePublished - 2002
Externally publishedYes
EventConference on Lasers and Electro-Optics (CLEO 2002) - Long Beach, CA, United States
Duration: May 19 2002May 24 2002


OtherConference on Lasers and Electro-Optics (CLEO 2002)
Country/TerritoryUnited States
CityLong Beach, CA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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