AI Article Synopsis
- A new technique using a multi-fiber delayer and a 2D CCD array detector was developed to measure time-dependent spectra excited by pulse lasers.
- The multi-fiber delayer includes five fibers differing in length by 1-2 meters, enabling a relative delay time of 5-10 nanoseconds.
- Time-resolved spectra were successfully collected for various materials, including R6G dye laser and acetone, with a time resolution of 5 nanoseconds when using a double frequency YAG pulse laser.
Article Abstract
A new method and technology for measuring time-dependent spectra excited by pulse laser was reported in the present paper, in which a multi-fiber delayer combined with a two dimensional CCD array detector was employed for collecting and processing the spectra. The multi-fiber delayer consists of five fibers with a length difference of 1-2 m (relative delay time 5-10 ns), and the optical multi channel analyzer is PARC OMA-4. The time-dependent spectra, i. e. the spectra of R6G dye laser, the SRS spectra of acetone, and the plasma emission spectra of metal Mo excited by a double frequency YAG pulse laser with a time resolution of 5 ns were obtained.
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