Cooperation effect of radiation in Nd:YAP

Michael P. Koselja; Jiri Kubelka; Jiri Kvapil

doi:10.1117/12.146886

17 June 1993 Cooperation effect of radiation in Nd:YAP

Michael P. Koselja, Jiri Kubelka, Jiri Kvapil

Proceedings Volume 1864, Solid State Lasers IV; (1993) https://doi.org/10.1117/12.146886
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

Behavior of radiation of Nd:YAP and Nd:YAG in a resonator with extremely low Q-value have been studied. The light pulses of the form discrete spikes around 1.08 micrometers have been observed using a relatively low pumping energies in Nd:YAP. The formation of these pulses has threshold character. Additional measurement such as second harmonic generation, far field distribution and spectral behavior have shown that emitted pulses have a typical laser character. Derived value of threshold gain parameter with material losses (g₀ - (alpha) ) for threshold energy is 0.581 cm^-1. No similar effect was observed for Nd:YAG, even for four timeshigher value of threshold energy than Nd:YAP. Obtained results demonstrate the cooperative effects of Nd³⁺ ions in Nd:YAP through a correlation between electromagnetic and crystal field.

Citation Download Citation

Michael P. Koselja, Jiri Kubelka, and Jiri Kvapil "Cooperation effect of radiation in Nd:YAP", Proc. SPIE 1864, Solid State Lasers IV, (17 June 1993); https://doi.org/10.1117/12.146886

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KEYWORDS

Nd:YAG lasers

Crystals

Radiation effects

Ions

Neodymium

Resonators

Solid state lasers

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