Document Detail

A Carpet Cloak for Visible Light.
MedLine Citation:
PMID:  21619019     Owner:  NLM     Status:  Publisher    
We report an invisibility carpet cloak device, which is capable of making an object undetectable by visible light. The cloak is designed using quasi conformal mapping and is fabricated in a silicon nitride waveguide on a specially developed nanoporous silicon oxide substrate with a very low refractive index (n<1.25). The spatial index variation is realized by etching holes of various sizes in the nitride layer at deep subwavelength scale creating a local effective medium index. The fabricated device demonstrates wideband invisibility throughout the visible spectrum with low loss. This silicon nitride on low index substrate can also be a general scheme for implementation of transformation optical devices at visible frequencies.
Majid Gharghi; Christopher Gladden; Thomas Zentgraf; Yongmin Liu; Xiaobo Yin; Jason Valentine; Xiang Zhang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-27
Journal Detail:
Title:  Nano letters     Volume:  -     ISSN:  1530-6992     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
NSF Nanoscale Science and Engineering Center (NSEC), University of California , Berkeley 3112 Etcheverry Hall, UC Berkeley, California 94720, United States.
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