title: Permanent computer-generated holograms embedded in silica glass by femtosecond laser pulses.
abstract: 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.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Yanping
authors.initials: Y
authors.lastname: Dou
authors.forename: Ran
authors.initials: R
authors.lastname: An
authors.forename: Hong
authors.initials: H
authors.lastname: Yang
authors.forename: Qihuang
authors.initials: Q
authors.lastname: Gong