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- Song, Myoung Hoon
- Organic Photonics & Optoelectronics Lab.
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Anomalously directed amplified spontaneous emission from a wedge-shaped cell sandwiched by cholesteric liquid crystal films
- Author(s)
- Nagata, T, Ohta, T, Song, Myoung Hoon, Takanishi, Y, Ishikawa, K, Watanabe, J, Toyooka, T, Nishimura, S, Takezoe, H
- Issued Date
- 2004-09
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.43, 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.
- Publisher
- JAPAN SOC APPLIED PHYSICS
- ISSN
- 0021-4922
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