Abstract − Analytical Sciences, 18(3), 243 (2002).
A Tunable Picosecond Dye Laser for Use in Dioxin Analysis
Nobuyuki TAKEYASU, Takayuki DEGUCHI, Manami TSUTSUMIKAWA, Junichi MATSUMOTO, and Totaro IMASAKA
Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
A distributed-feedback dye laser with a quenching cavity was designed and constructed for generating a tunable picosecond pulse with a narrow spectral linewidth. This nearly transform-limited pulse was succeedingly amplified by a triple-pass off-axis amplifier. The pulse duration and the spectral linewidth were 60 ps and 9.4 pm, respectively. The amplified pulse was frequency-doubled by second-harmonic generation, producing a 0.5-mJ pulse with no background emission. The potential advantage of this laser in the analysis of dioxin based on supersonic jet/resonance-enhanced multiphoton ionization/mass spectrometry is discussed.
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