Nonlinear optical phenomena in the Al2O3-P2O5, Er- and Yb-doped silica glasses
Authors: Makowska-Janusik M.1; Kityk I.V.1; Berdowski J.1; Matejec J.2; Kasik I.2; Mefleh A.3
Source: Journal of Optics A: Pure and Applied Optics, Volume 2, Number 1, 2000 , pp. 43-47(5)
Publisher: Institute of Physics Publishing
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Abstract:
UV-photoinduced optical second harmonic generation (PISHG) in Al2O3-P2O5-SiO2glasses doped by Er and Yb rare earth ions has been investigated. The maximum output PISHG signal is observed at the delay time between the photoinducing nitrogen laser (= 337 nm) and probing laser (YAG:Nd; = 1060 nm) beams at about 7 ps, at temperatures of about 4.2 K and photoinducing beam powers lying within the range 0.45-0.82 GW cm-2. The essential effect of external electrostatic field and hydrostatic pressure on the output PISHG signal has been revealed. The Yb ions suppress the output PISHG. All the data are explained in terms of the ab initiomolecular dynamics simulations and take into account anharmonic electron-vibration interactions. The problem of phase matching conditions is discussed.
Language: English
Document Type: Miscellaneous
Affiliations: 1: Institute of Physics WSP, PL-42201, Al Armii Krajowej 13/15, Czestochowa, Poland PL-42 217 Czestochowa, Poland 2: Institute of Radio Engineering and Electronics, Czech Academy of Sciences, Prague 8, Chaberska 57, 182 51, Czech Republic 3: Laboratoire Physique Applique et Automatique, University of Perpignan, Perpignan, France
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