Laser detection of the parameters of small solid particle located in air

A. Andreev, T. Ueda, M. Wakamatsu, A. Golub

研究成果: Conference contribution

抄録

The problem of small particle size and material detection is important for industrial and environmental applications. Previous investigations have shown the possibility of using the laser breakdown method to achieve first goal; the sensitivity of this method is a thousand times higher than that of conventional methods. However, for small particle sizes, the damage threshold of the solid target in this case is very close to the breakdown point of pure air. After breakdown, there is a small volume of dense hot plasma that emits radiation. We analyzed this radiation especially at late stage using an analytical model and simulation code as well as by experiment, and found that the emission intensity varied depending on the laser type and plasma parameters including initial particle size.

本文言語English
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
編集者V.I. Ustugov
ページ161-170
ページ数10
4350
DOI
出版ステータスPublished - 2001
外部発表はい
イベントSolid State Lasers (Laser Optics 2000) - St. Petersburg, Russian Federation
継続期間: 2000 6 262000 6 30

Other

OtherSolid State Lasers (Laser Optics 2000)
国/地域Russian Federation
CitySt. Petersburg
Period00/6/2600/6/30

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 凝縮系物理学

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