Properties of two-photon pumped cavity lasing in novel dye doped solid matrices

Journal Article · Wed May 01 04:00:00 EDT 1996 · IEEE Journal of Quantum Electronics

DOI:https://doi.org/10.1109/3.492996· OSTI ID:253663

He, G S; Bhawalkar, J D; Zhao, C; Prasad, P N ^[1]

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1. State Univ. of New York, Buffalo, NY (United States). Dept. of Chemistry

Two-photon pumped frequency upconversion cavity lasing at {approximately}600 nm is accomplished in three types of dye-doped solid rods pumped with {approximately}10 ns and 1.06-{micro}m IR laser pulses. The dopant is a new dye, trans-4-[p-(N-ethyl-N-(hydroxyethyl)amino)styryl]-N-methylpyridinium tetraphenylborate, abbreviated as ASPT, which possesses a greater two-photon absorption cross section and stronger upconversion fluorescence emission than common commercial dyes (such as rhodamine). Three different materials were chosen as solid matrices: poly(2-hydroxyethyl methacrylate), VYCOR porous glass, and sol-gel glass. Using a Q-switched Nd:YAG pulse laser as the pump source, strong cavity lasing could be achieved in these three ASPT doped solid rods as well as in ASPT solution in a liquid cell. The spectral, temporal, and spatial characteristics of the cavity lasing output have been systematically investigated. The measured output-input characteristics, lasing lifetime, and damage threshold for the three different rods are presented.

• OSTI ID: 253663
• Journal Information: IEEE Journal of Quantum Electronics, Journal Name: IEEE Journal of Quantum Electronics Journal Issue: 5 Vol. 32; ISSN 0018-9197; ISSN IEJQA7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DOPED MATERIALS
DYE LASERS
FREQUENCY MIXING
LASER CAVITIES
LASER RADIATION
MULTI-PHOTON PROCESSES
OPTICAL PUMPING