Light-induced second-harmonic generation in glass via multiphoton ionization
- 22 November 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 71 (21) , 3446-3449
- https://doi.org/10.1103/physrevlett.71.3446
Abstract
Irradiating glass by intense light at frequencies ω and 2ω generates a semipermanent dc electric field in the glass that transforms the glass into a phase-method optical-frequency doubler. We map out this dc electric field over a wide variety of experimental conditions. We show that its symmetries are predicted by a theory based on the interference of competing multiphoton ionization channels.Keywords
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