Document Detail

Rapid reversible phototuning of lasing frequency in dye-doped cholesteric liquid crystal.
MedLine Citation:
PMID:  25490501     Owner:  NLM     Status:  In-Data-Review    
Lasing in induced cholesteric liquid crystal (CLC) containing highly photosensitive azo chiral dopant (ChD) and pyrromethene laser dye was investigated. Due to the absence of excitation energy transfer from the dye molecules to the molecules of ChD in such a system, a low lasing threshold was achieved. When using violet and green light-emitting diodes, reversible frequency tuning was obtained in the range of about 30 nm with a tuning time 1-2 orders of magnitude smaller than in conventional CLC laser systems based on azo and azoxy photosensitive compounds. Further increase of the intensity of the excitation light by using a green laser pointer allowed us to achieve a record phototuning speed (∼21  nm in 148 ms).
T V Mykytiuk; I P Ilchishin; O V Yaroshchuk; R M Kravchuk; Y Li; Q Li
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  39     ISSN:  1539-4794     ISO Abbreviation:  Opt Lett     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-12-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6490-3     Citation Subset:  IM    
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