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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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Anomalously directed amplified spontaneous emission from a wedge-shaped cell sandwiched by cholesteric liquid crystal films

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Title
Anomalously directed amplified spontaneous emission from a wedge-shaped cell sandwiched by cholesteric liquid crystal films
Author
Nagata, TOhta, TSong, Myoung HoonTakanishi, YIshikawa, KWatanabe, JToyooka, TNishimura, STakezoe, H
Keywords
Amplified spontaneous emission; Cholesteric liquid crystal; Lasing; Photonic effect; Selective reflection
Issue Date
2004-09
Publisher
JAPAN SOC APPLIED PHYSICS
Citation
JAPANESE JOURNAL OF APPLIED PHYSICS, v.43, no., pp.L1220 - L1222
Abstract
An amplified spontaneous emission (ASE) from wedge-shaped cells of dye-doped glycerol sandwiched between two cholesteric liquid crystal films has been studied. Upon laser excitation at nearly normal incidence on a slightly wedged cell with a wedge angle of 1.2°, ASE occurs along the direction oblique (about 45°) to the surface normal. This effect was interpreted by increasing the incidence angle and consequent shift of a photonic band upon successive internal reflection in the wedge cell.
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DOI
10.1143/JJAP.43.L1220
ISSN
0021-4922
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MSE_Journal Papers
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