Document Detail

Two-color holography in reduced near-stoichiometric lithium niobate.
MedLine Citation:
PMID:  18301598     Owner:  NLM     Status:  In-Data-Review    
We explored a number of factors affecting the properties relevant to holographic optical data storage by using a two-color recording scheme in reduced, near-stoichiometric lithium niobate. Two-color, or photon-gated, recording is achieved by use of 852-nm information-carrying beams and 488-nm gating light. Readout at 852 nm is nondestructive, with a gating ratio of ~10(4). Recording sensitivity, gating ratio, dynamic range, and dark decay were measured for crystals of differing stoichiometry, degree of reduction, wavelength of the gating light, temperature, and optical power density. The two-color sensitivity per incident photon is still somewhat less than that of the one-color process at 488 nm for ~1 W/cm(2) of gating light but is essentially the same in terms of absorbed photons. Two-color recording is an attractive way of achieving nondestructive readout in a read-write material, and it allows selective optical erasure.
H Guenther; R Macfarlane; Y Furukawa; K Kitamura; R Neurgaonkar
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  37     ISSN:  0003-6935     ISO Abbreviation:  Appl Opt     Publication Date:  1998 Nov 
Date Detail:
Created Date:  2008-02-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7611-23     Citation Subset:  -    
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