### Abstract

A tunable multichannel filter in the finite photonic crystal (PC) containing photonic quantum well (PQW) as a defect is proposed. The symmetric structure (AB) ^{P}(CD) ^{Q}(BA) ^{P} and the asymmetric structure (AB) ^{P}(CD) ^{Q}(AB) ^{P} are considered in this work. Here, the host PC of (AB) ^{P} is made of Si for layer A and of SiO _{2} for layer B. In the PQW, (CD) ^{Q}, C also is Si, but D is an extrinsic semiconductor, n-type silicon (n-Si). With the use of n-Si, it is found that both structures can function as a tunable multichannel filter in the infrared region. The number of channels is equal to Q + 1 in the symmetric structure, whereas it is Q for the asymmetric one. The positions of multiple resonant peaks can be tuned by the variation in the impurity concentration of n-Si. The proposed filter could be used to design the wavelength division multiplexer filter that is of technical use in optical communications.

Original language | English |
---|---|

Article number | 6145731 |

Pages (from-to) | 283-290 |

Number of pages | 8 |

Journal | IEEE Photonics Journal |

Volume | 4 |

Issue number | 1 |

DOIs | |

Publication status | Published - 2012 Feb 29 |

### Fingerprint

### Keywords

- Photonic quantum well (PQW)
- extrinsic semiconductor
- multichannel filter

### ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering

### Cite this

*IEEE Photonics Journal*,

*4*(1), 283-290. [6145731]. https://doi.org/10.1109/JPHOT.2012.2186958

**Tunable multichannel filter in a photonic crystal containing semiconductor photonic quantum well.** / Hung, Hui Chuan; Wu, Chien-Jang; Yang, Tzong Jer; Chang, Shoou Jinn.

Research output: Contribution to journal › Article

*IEEE Photonics Journal*, vol. 4, no. 1, 6145731, pp. 283-290. https://doi.org/10.1109/JPHOT.2012.2186958

}

TY - JOUR

T1 - Tunable multichannel filter in a photonic crystal containing semiconductor photonic quantum well

AU - Hung, Hui Chuan

AU - Wu, Chien-Jang

AU - Yang, Tzong Jer

AU - Chang, Shoou Jinn

PY - 2012/2/29

Y1 - 2012/2/29

N2 - A tunable multichannel filter in the finite photonic crystal (PC) containing photonic quantum well (PQW) as a defect is proposed. The symmetric structure (AB) P(CD) Q(BA) P and the asymmetric structure (AB) P(CD) Q(AB) P are considered in this work. Here, the host PC of (AB) P is made of Si for layer A and of SiO 2 for layer B. In the PQW, (CD) Q, C also is Si, but D is an extrinsic semiconductor, n-type silicon (n-Si). With the use of n-Si, it is found that both structures can function as a tunable multichannel filter in the infrared region. The number of channels is equal to Q + 1 in the symmetric structure, whereas it is Q for the asymmetric one. The positions of multiple resonant peaks can be tuned by the variation in the impurity concentration of n-Si. The proposed filter could be used to design the wavelength division multiplexer filter that is of technical use in optical communications.

AB - A tunable multichannel filter in the finite photonic crystal (PC) containing photonic quantum well (PQW) as a defect is proposed. The symmetric structure (AB) P(CD) Q(BA) P and the asymmetric structure (AB) P(CD) Q(AB) P are considered in this work. Here, the host PC of (AB) P is made of Si for layer A and of SiO 2 for layer B. In the PQW, (CD) Q, C also is Si, but D is an extrinsic semiconductor, n-type silicon (n-Si). With the use of n-Si, it is found that both structures can function as a tunable multichannel filter in the infrared region. The number of channels is equal to Q + 1 in the symmetric structure, whereas it is Q for the asymmetric one. The positions of multiple resonant peaks can be tuned by the variation in the impurity concentration of n-Si. The proposed filter could be used to design the wavelength division multiplexer filter that is of technical use in optical communications.

KW - Photonic quantum well (PQW)

KW - extrinsic semiconductor

KW - multichannel filter

UR - http://www.scopus.com/inward/record.url?scp=84863176458&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863176458&partnerID=8YFLogxK

U2 - 10.1109/JPHOT.2012.2186958

DO - 10.1109/JPHOT.2012.2186958

M3 - Article

VL - 4

SP - 283

EP - 290

JO - IEEE Photonics Journal

JF - IEEE Photonics Journal

SN - 1943-0655

IS - 1

M1 - 6145731

ER -