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Design of New Nonlinear Optical Materials Based on Porous III–V Compounds
Author(s) -
Tiginyanu I.M.,
Kravetsky I.V.,
Marowsky G.,
Monecke J.,
Hartnagel H.L.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200009)221:1<557::aid-pssb557>3.0.co;2-6
Subject(s) - porosity , membrane , second harmonic generation , materials science , anisotropy , nonlinear optical , porous medium , nonlinear optics , phase matching , chemical engineering , nonlinear system , composite material , optics , chemistry , physics , engineering , laser , biochemistry , quantum mechanics
Bulk and porous membranes of gallium phosphide have been characterized by optical second harmonic generation (SHG) technique using a 1064 nm pump beam. The porous membranes prove to exhibit an enhanced SHG in comparison with the bulk material. Taking into account the porosity‐induced anisotropy we show analytically that the phase matching conditions can be fulfilled for membranes possessing a degree of porosity higher than 30%.