Open AccessPermanent computer-generated holograms embedded in silica glass by femtosecond laser pulses
Author(s) -
Yudong Li,
Yusheng Dou,
Ran An,
Hong Yang,
Qihuang Gong
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.002433
Subject(s) - femtosecond , holography , optics , materials science , collimated light , laser , computer generated holography , fourier transform , phase (matter) , physics , quantum mechanics
We present a novel technique to directly fabricate permanent computer-generated holograms inside silica glass with femtosecond laser pulses. The Fourier transform of an object is performed using a computer and the complex amplitude distribution is encoded by the detour phase method. The resulted cell-oriented hologram is directly written inside a bulk of silica glass by femtosecond laser-induced microexplosion. The image is then reconstructed with a collimated He-Ne laser beam.