Document Detail


Liquid-crystal-based tunable high-Q directional random laser from a planar random microcavity.
MedLine Citation:
PMID:  17356657     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Temperature-tunable directional laser emission from a dye-doped liquid-crystal-based planar random cavity laser is presented. The optically pumped nematic liquid crystal infiltrated planar random microcavity produces an ultranarrow linewidth (0.03 nm, corresponding to Q>20,000), highly directional (1.4 degrees divergence angle) laser emission. By increasing the temperature from 27 degrees C to 34 degrees C, the wavelength of an emitted polarized laser can be tuned between 605.8 and 608.5 (ordinary light) and 631.3 and 624.9 nm (extraordinary light). A simulation result from the transfer matrix method that matches the experimental results well is also presented.
Authors:
Qinghai Song; Shumin Xiao; Xinchuan Zhou; Liying Liu; Lei Xu; Yonggang Wu; Zhanshan Wang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics letters     Volume:  32     ISSN:  0146-9592     ISO Abbreviation:  Opt Lett     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-03-14     Completed Date:  2007-04-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708433     Medline TA:  Opt Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  373-5     Citation Subset:  -    
Affiliation:
State Key Lab for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai, China.
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