A novel optical beam splitter based on photonic crystal with hybrid lattices

doi:10.1088/1674-1056/21/6/064220

中国物理B ›› 2012, Vol. 21 ›› Issue (6): 64220-064220.doi: 10.1088/1674-1056/21/6/064220

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

A novel optical beam splitter based on photonic crystal with hybrid lattices

朱清溢^{a b}, 付永启^a, 胡德清^b, 章志敏^a

a. School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China;
b. Department of Electronic Engineering, Sichuan Information Technology College, Guangyuan 628017, China

收稿日期:2011-12-02 修回日期:2012-02-08 出版日期:2012-05-01 发布日期:2012-05-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11079014 and 61077010) and the Fundamental Research Funds for the Central Universities, China (Grant Nos. ZYGX2011YB020 and ZYGX2010J112).

A novel optical beam splitter based on photonic crystal with hybrid lattices

Zhu Qing-Yi(朱清溢)^a)b), Fu Yong-Qi(付永启)^a)†, Hu De-Qing(胡德清)^b), and Zhang Zhi-Min(章志敏)^a)

a. School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China;
b. Department of Electronic Engineering, Sichuan Information Technology College, Guangyuan 628017, China

Received:2011-12-02 Revised:2012-02-08 Online:2012-05-01 Published:2012-05-01
Contact: Fu Yong-Qi E-mail:yqfu@uestc.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11079014 and 61077010) and the Fundamental Research Funds for the Central Universities, China (Grant Nos. ZYGX2011YB020 and ZYGX2010J112).

摘要/Abstract

摘要： A novel optical beam splitter constructed on the basis of photonic crystal (PC) with hybrid lattices is proposed in this paper. The band gap of square-lattice PC is so designed that the incident light is divided into several branch beams. Triangular-lattice graded-index PCs are combined for focusing each branch. Computational calculations are carried out on the basis of finite-different time-domain algorithm to prove the feasibility of our design. The waveguide is unnecessary in the design. Thus the device has functions of both splitting and focusing beams. Size of the divided beam at site of full-width at half-maximum is of the order of λ/2. The designed splitter has the advantages that it has a small volume and can be integrated by conventional semiconductor manufacturing process.

关键词: optical beam splitter, photonic crystals, hybrid lattices, finite-different time-domain method

Abstract: A novel optical beam splitter constructed on the basis of photonic crystal (PC) with hybrid lattices is proposed in this paper. The band gap of square-lattice PC is so designed that the incident light is divided into several branch beams. Triangular-lattice graded-index PCs are combined for focusing each branch. Computational calculations are carried out on the basis of finite-different time-domain algorithm to prove the feasibility of our design. The waveguide is unnecessary in the design. Thus the device has functions of both splitting and focusing beams. Size of the divided beam at site of full-width at half-maximum is of the order of λ/2. The designed splitter has the advantages that it has a small volume and can be integrated by conventional semiconductor manufacturing process.

Key words: optical beam splitter, photonic crystals, hybrid lattices, finite-different time-domain method

中图分类号: (Photonic bandgap materials)

42.70.Qs

42.79.Fm (Reflectors, beam splitters, and deflectors) 02.70.Bf (Finite-difference methods)

朱清溢, 付永启, 胡德清, 章志敏. A novel optical beam splitter based on photonic crystal with hybrid lattices[J]. 中国物理B, 2012, 21(6): 64220-064220.

Zhu Qing-Yi(朱清溢), Fu Yong-Qi(付永启), Hu De-Qing(胡德清), and Zhang Zhi-Min(章志敏) . A novel optical beam splitter based on photonic crystal with hybrid lattices[J]. Chin. Phys. B, 2012, 21(6): 64220-064220.

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A novel optical beam splitter based on photonic crystal with hybrid lattices

A novel optical beam splitter based on photonic crystal with hybrid lattices

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