Spectroscopic detection of ammonia using diode-pumped difference-frequency generation

T. Ueda, M. Wada, T. Sugiyama, S. Nakajima, T. Umezawa, S. Araki, T. Kudou

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

Abstract

Use of photons for in-situ measurements of various objects provides a number of benefits, such as precise real-time measurement with no effect on the measured objects. Our research aims to develop an in-situ measurement technology that uses the benefits of photons and is ideal for applications in production lines. We succeeded in developing a tunable laser beam source to obtain the spectral line width of 5 MHz and a continuous wavelength sweep bandwidth of 200 nm, thus achieving our initial target. We believe that these characteristics are sufficient for use in absorption spectroscopy measurement of gases. For a 2.5-2.7 μm-band quantum infrared photo detector, we achieved the initial target of D* = 1 to 3 × 10 11 cmHz 1/2/W (at room temperature). For a 3-10 μm-band quantum infrared photo detector, we performed a study on designing an InAsP/InP multi-quantum well light-absorbing layer.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJ.W. Pierce, K.I. Schaffers
Pages21-25
Number of pages5
Volume4268
DOIs
Publication statusPublished - 2001
Externally publishedYes
EventGrowth, Fabrication, Devices, and Applications of Laser and Nonlinear Materials - San Jose, CA, United States
Duration: 2001 Jan 232001 Jan 24

Other

OtherGrowth, Fabrication, Devices, and Applications of Laser and Nonlinear Materials
CountryUnited States
CitySan Jose, CA
Period01/1/2301/1/24

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Keywords

  • Difference-freequency generation
  • Gas sensors
  • Mid-infrared spectroscopy
  • Periodically poled lithium niobate

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ueda, T., Wada, M., Sugiyama, T., Nakajima, S., Umezawa, T., Araki, S., & Kudou, T. (2001). Spectroscopic detection of ammonia using diode-pumped difference-frequency generation. In J. W. Pierce, & K. I. Schaffers (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4268, pp. 21-25) https://doi.org/10.1117/12.424646