Abnormal Modulation of Dielectric Band Transmittance of Polystyrene Opal

Chin. Phys. Lett.

2005, Vol. 22

Issue (8): 1930-1933 DOI:

Original Articles

Abnormal Modulation of Dielectric Band Transmittance of Polystyrene Opal

HU Xiao-Yong¹;GONG Qi-Huang¹;CHENG Bing-Ying²;ZHANG Dao-Zhong²

¹State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 ²Optical Physics Laboratory, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080

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HU Xiao-Yong, GONG Qi-Huang, CHENG Bing-Ying et al 2005 Chin. Phys. Lett. 22 1930-1933

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Abstract The abnormal transmittance in the dielectric band edge of a polystyrene opal is observed and analysed. The transmittance is periodically modulated and the period of modulation varies with the wavelength, which destroys the perfect structure of the photonic band gap. The transmittance modulation originates from the propagation of the low order whispering-gallery mode excited in polystyrene spheres. These results indicate that the whispering-gallery mode has a great influence on practical applications of polystyrene opal.

Keywords: 42.70.Qs 61.46.+w 78.67.Bf

Published: 01 August 2005

PACS:	42.70.Qs	(Photonic bandgap materials)
	61.46.+w
	78.67.Bf	(Nanocrystals, nanoparticles, and nanoclusters)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I8/01930

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	HU Xiao-Yong
	GONG Qi-Huang
	CHENG Bing-Ying
	ZHANG Dao-Zhong

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