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Song, Myoung Hoon
Organic Photonics & Optoelectronics Lab.
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Electrotunable non-reciprocal laser emission from a liquid-crystal photonic device

Author(s)
Song, Myoung HoonPark, ByoungchooNishimura, SuzushiToyooka, TakehiroChung, In JaeTakanishi, YoichiIshikawa, KenTakezoe, Hideo
Issued Date
2006-09
DOI
10.1002/adfm.200600107
URI
https://scholarworks.unist.ac.kr/handle/201301/7447
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33749189626
Citation
ADVANCED FUNCTIONAL MATERIALS, v.16, no.14, pp.1793 - 1798
Abstract
A liquid crystal (LC) photonic device with an anisotropic optical heterojunction structure has been fabricated. The device has a phase-retarding nematic LC (NLC) layer sandwiched between two polymer cholesteric LC films with right-handed helices of different pitches. Electrotunable non-reciprocal light transmittance and unidirectional circularly polarized (CP) lasing emission have been successfully demonstrated for this device structure. Two left CP (LCP) lasing emission peaks are observed at the edges of the overlapping region between the two photonic bands in the structure and are shifted upon the application of a voltage. In contrast, a non-reciprocal right CP (RCP) lasing emission peak emerges at one of the band edges and diminishes upon the application of a voltage. These phenomena are interpreted based on the selective reflection of RCP light and the reorientation of the NLC molecules by the application of a voltage.
Publisher
WILEY-V C H VERLAG GMBH
ISSN
1616-301X

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