高Q值二维光子晶体缺三腔的数值模拟与分析

潘伟; 余和军; 张晓光; 席丽霞

doi:10.7498/aps.61.034209

摘要

针对单光子源对高性能纳米腔的需要, 采用柔性束缚光子限制结构和时域有限差分法, 通过把时域和频域的光电场分布与理想高斯函数进行比较, 设计出一种高品质因子的光子晶体缺三腔(L3), 其Q值达2.8105, 有效模式体积为Veff=0.1813(/n)3, 相应的Purcell因子超过F=1.2105. 此外, 提出一种定量描述腔性能优劣程度的能量系数分析法, 通过定量对比二维高斯分布下的场分布能量与总能量, 提高了腔的优化速度与准确性. 计算结果表明, 随着腔性能的优化, Q值正比于能量系数值直至饱和.

关键词:

Abstract

A new double-heterostructure photonic crystal L3 microcavity is designed, under the condition of gentle confinement, the quality factor of the cavity is optimized to reach as high as 2.8105 by comparing the simulated mode distribution calculated by finite difference time domain algorithm with the ideal Gaussian distribution, while the mode volume remains small, Veff=0.1813(/n)3. This is the best result at present. Additionally, an energy correlation coefficient is introduced to qualitatively describe the optimization level of a photonic crystal microcavity, which improves the speed and the accuracy of optimization.

Keywords:

作者及机构信息

1.
北京邮电大学信息光子学与光通信研究院, 北京 100876

基金项目: 国家自然科学基金(批准号: 10947150, 60977049)资助的课题.

Authors and contacts

1.
Institute of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 10947150, 60977049).

参考文献

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施引文献

[1]	Akahane Y, Asano T, Song B, Noda S 2003 Nature 425 944
[2]	Song B, Noda S, Asano T, Akahane Y 2005 Nature Mater. 4 207
[3]	Wang H Q, Fang L G, Wang Y F, Yu A L 2011 Acta Phys. Sin. 60014203(in Chinese) [王慧琴, 方利广, 王一凡, 余奥列 2011 物理学报 60 014203]
[4]	Noda S, Chutinan A, Imada M 2000 Nature 407 608
[5]	Song B, Noda S, Asano T 2003 Science 300 1537
[6]	Jiang B, Zhang Y J, Zhou W J, Chen W, Liu A J, Zheng W H 2011 Chin. Phys. B 20 024208
[7]	Lončar M, Scherer A, Qiu Y 2003 Appl. Phys. Lett. 82 4648
[8]	Painter O, Lee R K, Scherer A, Yariv A, Brien J D, Dapkus P D,Kim I 1999 Science 284 1819
[9]	Michler P, Kiraz A, Becher C, SchoenfeldWV, Petroff P M, ZhangL, Hu E, Imamoˇglu A 2000 Science 290 2282
[10]	Zhou C Z, Xiong Z G, Li Z G 2009 Chin. Phys. Lett. 26 094201
[11]	Portalupi S L, Galli M, Reardon C 2010 Opt. Express 18 16064
[12]	Barth M, Kouba J, Stingl J, Löchel B, Benson O 2007 Opt. Express15 17231
[13]	Akahane Y, Asano T, Song B, Noda S 2005 Opt. Express 13 1202
[14]	Takano H, Song B, Asano T, Noda S 2006 Opt. Express 14 3491
[15]	Notomi M, Kuramochi E, Taniyama H 2008 Opt. Express 1611095
[16]	Daniel Y, Cao T, Ivanov P, Cryan M, Craddock I, Railton C, RarityJ 2007 IEEE J. Quant. Elect. 43 462
[17]	Vučković J, Lončar M, Mabuchi H, Scherer A 2001 Phys. Rev. E65 016608
[18]	Kuramochi E, Notomi M, Mitsugi S, Shinya A, Tanabe T 2006Appl. Phys. Lett. 88 041112
[19]	Purcell E 1946 Phys. Rev. Lett. 69 681
[20]	Patterson M, Hughes S 2009 Phys. Rev. B 80 125307
[21]	Srinivasan K, Painter O 2002 Opt. Express 10 670
[22]	Lecamp G, Lalanne P, Hugonin J P, Gerard J M 2005 IEEE J.Quant. Elect. 41 1323

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