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Song, Myoung Hoon
Organic Photonics & Optoelectronics Lab
Research Interests
  • Organic optoelectrics, perovskite light-emitting diodes, surface treatment, photonic crystals

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Electro-tunable optical diode based on photonic bandgap liquid-crystal heterojunctions

Cited 145 times inthomson ciCited 143 times inthomson ci
Title
Electro-tunable optical diode based on photonic bandgap liquid-crystal heterojunctions
Author
Hwang, JSong, Myoung HoonPark, BNishimura, SToyooka, TWu, JWTakanishi, YIshikawa, KTakezoe, H
Keywords
SPONTANEOUS EMISSION; FREE-VOLUME; BAND; LASER; ALIGNMENT
Issue Date
2005-05
Publisher
NATURE PUBLISHING GROUP
Citation
NATURE MATERIALS, v.4, no.5, pp.383 - 387
Abstract
An optical heterojunction photonic bandgap (PBG) structure consisting of an anisotropic nematic layer sandwiched between two cholestric liquid-crystal layers with different helical pitches was investigated. A half-wave phase retarders layer made of planar nematic liquid crystal (NLC) was sandwiched two PBG CLC layers with the same sense of helix handedness but different pitches. The optical diode action in the optical heterojunction anisotropic structure (OHAS) was analyzed. With its advantages of easy fabrication and electro-tunability, it was found that the structure has wide potential application in photonic devices that make use of propagation-direction dependent operation.
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DOI
10.1038/nmat1377
ISSN
1476-1122
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MSE_Journal Papers
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