Journal article
Low repetition rate 343 nm passively Q-switched solid-state laser for time-resolved fluorescence spectroscopy
We demonstrate a low-cost 343 nm solid-state laser delivering up to 20 µJ per pulse, with a pulse width of 2.3 ns at a repetition rate of 100 Hz. The 343 nm is obtained through a third harmonic generation of a passively Q-switched 1030 nm Yb:YAG laser with pulse energy of 190 µJ at 100 Hz and a pulse width of 5.4 ns.
The IR-UV conversion efficiency is 10.4%, comparable to that achieved with mode-locked IR lasers. The light source is electronically controlled for easy synchronization with a detection circuit. The low repetition rate specifically targets applications exploiting the millisecond scale lifetime of lanthanides employed in fluoroimmunoassay measurements for time-resolved fluorescence spectroscopy.
Low repetition rate and even pulse-on-demand operation is demonstrated.
Language: | English |
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Year: | 2018 |
Pages: | 20614-621 |
ISSN: | 10944087 |
Types: | Journal article |
DOI: | 10.1364/OE.26.020614 |
ORCIDs: | Rodenko, Olga , Tidemand-Lichtenberg, Peter and Pedersen, Christian |