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Proceedings Paper

High-intensity nanosecond white-light source using a commercially available Xe arc lamp
Author(s): Shin Itami; Tsutomu Araki
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Paper Abstract

We have developed an intense, white emission spectrum, nanosecond pulsed light source using a commercially available Xe short-arc lamp. This light source is simple in construction, physically compact and easy to operate. In the previous study, we have applied 35 - 75 W type lamp as the light source. In the present study we applied two 150 W type Xe-arc lamps. Because the electrode gap of the 150 W lamp is wider than that of 35 - 75 W type, applied voltage higher than 16 kV is required for the pulsed operation of the 150 W lamp. Intense light pulses as large as 140 W (peak power) of 15.2 ns duration (FWHM) were obtained repetitively from the Xe lamps. This lamp produced broadband emission spectrum (250 - 650 nm) according to discharge of Xe gas. Present lamp operation is free-running type, but it is possible to control the discharge timing using a thyratron. The intense emission characteristic can be utilized not only as the excitation light source in time-resolved fluorometry but also as the stroboscopic illumination source in high-speed photograph.

Paper Details

Date Published: 7 May 1999
PDF: 4 pages
Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); doi: 10.1117/12.347848
Show Author Affiliations
Shin Itami, Anan College of Technology (Japan)
Tsutomu Araki, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 3740:
Optical Engineering for Sensing and Nanotechnology (ICOSN '99)
Ichirou Yamaguchi, Editor(s)

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