The Absorbing Properties of Two-Dimensional Plasma Photonic Crystals

QI Limei (亓丽梅); LI Chao (李超); FANG Guangyou (方广有); GAO Xiang (高翔)

doi:10.1088/1009-0630/17/1/02

Plasma Science and Technology > 2015 > 17(1): 4-9. > DOI: 10.1088/1009-0630/17/1/02

QI Limei (亓丽梅), LI Chao (李超), FANG Guangyou (方广有), GAO Xiang (高翔). The Absorbing Properties of Two-Dimensional Plasma Photonic Crystals[J]. Plasma Science and Technology, 2015, 17(1): 4-9. DOI: 10.1088/1009-0630/17/1/02

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The Absorbing Properties of Two-Dimensional Plasma Photonic Crystals

Key Laboratory of Electromagnetic Radiation and Sensing Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

Funds: supported by National Natural Science Foundation of China (Nos. 61107030, 11174280, 60990323 and 60990320), the Promotive Research Fund for Excellent Young and Middle-aged Scientists of Shandong Province (No. BS2010CL025), and the China Postdoctoral Science Foundation

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Received Date: April 22, 2014

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Abstract

Abstract

Plasma photonic crystals composed of periodic plasma and dielectric materials have attracted considerable attention because of their tunable photonic band gaps, but only their band structures or negative refractive index properties have been addressed in previous works. In this paper, through studying the transmission and reflection characteristics of two types of two- dimensional plasma photonic crystals, it is found that plasma photonic crystals play an important role in absorbing waves, and they show broader band and higher amplitude absorption characteris- tics than bulk plasmas. Also, the absorption of plasma photonic crystals can be tuned via plasma parameters; varying the collision frequency can make the bandwidth and amplitude tunable, but cannot change the central frequency, whereas varying the plasma frequency would control both the location and the amplitude of the absorbers. These features of plasma photonic crystals have potential for terahertz tunable absorber applications.
- plasma photonic crystal,
- absorber,
- tunable,
- plasma frequency,
- collision frequency

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