Near-infrared tunable narrow filter properties in a 1D photonic crystal containing semiconductor metamaterial photonic quantum-well defect

A photonic quantum well (PQW) structure based on the zero-averaged refractive index gap is constructed and the transmission properties are investigated. Quantized confined photonic states resulting from the photonic confinement effect are observed. We find that the resonant transmissions are not only weakly dependent on the incident angle but also insensitive to polarization of light. More importantly, the number of the confined photonic states can be controlled by simply adjusting the cell number of the well photonic crystal. It is shown that strong field localization is found when the well photonic crystal consists of positive-index material or single negative material. Particularly for the PQW structure containing single negative material, the field in the well region can be highly enhanced by modulating the size of the well photonic crystal. These peculiar features make this PQW structure superior to the conventional PQW structure in potential applications such as omnidirectional filtering and optical bistable switching.

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Broadening of omni-directional reflection range in 1-d photonic crystal by using photonic quantum well structures

Optik ◽

10.1016/j.ijleo.2011.09.035 ◽

2012 ◽

Vol 123 (21) ◽

pp. 1943-1946 ◽

Cited By ~ 2

Author(s):

Vipin Kumar ◽

Kh.S. Singh ◽

S.K. Singh ◽

S.P. Ojha

Keyword(s):

Photonic Crystal ◽

Quantum Well ◽

Quantum Well Structures ◽

Photonic Quantum Well

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Studying the Quantum-Well Structural Photonic Crystal with Odd-Number Channeled-Filterring Phenomena

Materials Science Forum ◽

10.4028/www.scientific.net/msf.663-665.1321 ◽

2010 ◽

Vol 663-665 ◽

pp. 1321-1324

Author(s):

Qiang Hua Lu ◽

Ying Jun Gao ◽

An Su

Keyword(s):

Photonic Crystal ◽

Quantum Well ◽

Structural Parameters ◽

Transmission Band ◽

Optical Filters ◽

Transmission Spectra ◽

Central Frequency ◽

Quantization Effect ◽

Symmetrical Model ◽

Photonic Quantum Well

With properly chosen structural parameters, the transmission spectra of the mirror symmetrical model of photonic crystal (AB)m (CD)n (BA)m is calculated by means of transfer matrix method. When the transmission band of photonic crystal (CD) is inside the band gap of photonic crystal (AB)m (BA)m, both sharing the same central frequency as their symmetry centers, mirror symmetrical photonic quantum well is formed. At both sides of the central frequencies in the reduced units in the transmission spectra of the well, there are odd resonance-peaks, which symmetrically distributed and orderly localized, and show an obvious quantization effect for transmission-peaks. The number and location of the transmission peaks can be modulated by changing the number of period n of photonic crystal (CD). This can be used for designing the adjustably odd-passaged optical filters.

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