Document Detail

Dynamic holographic phase gratings in multiple-quantum-well asymmetric Fabry-Perot reflection modulators.
MedLine Citation:
PMID:  19844456     Owner:  NLM     Status:  In-Data-Review    
Dynamic holographic pi-phase gratings can be written in a multiple-quantum-well asymmetric Fabry-Perot reflection modulator by spatial modulation of the quantum-confined exciton absorption. Operating near the Fabry-Perot resonance, the phase grating quenches the zero-order reflection and enhances the first-order diffraction efficiency. The diffraction efficiency of these structures as diffractive optics elements is not sensitive to the contrast ratio, which eases the constraints for device fabrication. Numerical simulations for multiple-quantum-well structures are presented that fully include refractive-index changes in response to a spatial modulation of the exciton absorption, which can be caused by any of several techniques, including free-carrier gratings, absorption bleaching, electro-optic effects, and photorefractive effects.
D D Nolte
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  19     ISSN:  0146-9592     ISO Abbreviation:  Opt Lett     Publication Date:  1994 Jun 
Date Detail:
Created Date:  2009-10-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  819-21     Citation Subset:  -    
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