Coherent properties of a copper vapor laser and dynamic holograms in vanadium dioxide films

Journal Article · Wed Feb 01 04:00:00 EST 1978 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1978v008n02ABEH008526· OSTI ID:6681642

Zemskov, K I; Kazaryan, M A; Mokerov, V G; Petrash, G G; Petrova, A G

Dynamic holography in vanadium dioxide films was used to study experimentally the coherence of the radiation emitted from a copper vapor laser. It was established that the temporal coherence length exceeded 12 cm and the spatial coherence length was at least equal to the laser beam diameter. An investigation was made of the holographic characteristics of vanadium dioxide using the copper vapor laser to record and reconstruct holograms. The investigation included the dependence of the diffraction efficiency on the power of the laser pulses and their repetition frequency. The possibility of optical modulation of the semiconductor--metal phase transition and of the corresponding recording and erasure of holograms in VO/sub 2/ at frequencies above 10 kHz was demonstrated for the first time. There was no deterioration in the holographic characteristics of VO/sub 2/ after more than 10/sup 8/ recording--erasure cycles.

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6681642
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 8:2; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CHALCOGENIDES
COHERENCE LENGTH
COPPER
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
GAS LASERS
HOLOGRAPHY
LASERS
METALS
OXIDES
OXYGEN COMPOUNDS
STIMULATED EMISSION
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM COMPOUNDS
VANADIUM OXIDES