Optical microcavities: new understandings and developments
Optical microcavities have attracted tremendous interest in both fundamental and applied research in the past few decades, thanks to their small footprint, easy integrability, and high quality factors. Using total internal reflection from a dielectric interface or a photonic band gap in a periodic system, these photonic structures do not rely on conventional metal-coated mirrors to confine light in small volumes, which have brought forth new developments in both classical and quantum optics. This focus issue showcases several such developments and related findings, which may pave the way for the next generation of on-chip photonic devices based on microcavities.
Liang Feng：Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
Harald G. L. Schwefel：The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Physics, University of Otago, 730 Cumberland Street, Dunedin 9016, New Zealand
【1】L. Ge, “Constructing the scattering matrix for optical microcavities as a nonlocal boundary value problem,” Photon. Res. 5 , B20–B28 (2017).
【2】S. Longhi, and L. Feng, “Unidirectional lasing in semiconductor microring lasers at an exceptional point [Invited],” Photon. Res. 5 , B1–B6 (2017).
【3】Y. Kagoshima, S. Shinohara, S. Sunada, and T. Harayama, “Self-adjustment of a nonlinear lasing mode to a pumped area in a two-dimensional microcavity [Invited],” Photon. Res. 5 , B47–B5 3 (2017).
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【5】N. L. Aung, L. Ge, O. Malik, H. E. Türeci, and C. F. Gmachl, “Threshold current reduction and directional emission of deformed microdisk lasers via spatially selective electrical pumping,” Appl. Phys. Lett. 107 , 15 1106 (2015 ).
【6】S. Sunada, T. Fukushima, S. Shinohara, T. Harayama, and M. Adachi, “Stable single-wavelength emission from fully chaotic microcavity lasers,” Phys. Rev. A 88 , 013802 (2013).
【7】T. Harayama, S. Sunada, and S. Shinohara, “Universal single-mode lasing in fully-chaotic two-dimensional microcavity lasers under continuous wave operation with large pumping power [Invited],” Photon. Res. 5 , B39–B46 (2017).
【8】F. Xie, N. Yao, W. Fang, H. Wang, F. Gu, and S. Zhuang, “Single-mode lasing via loss engineering in fiber-taper-coupled polymer bottle microresonators,” Photon. Res. 5 , B29–B33 (2017).
【9】S. J. Herr, K. Buse, and I. Breunig, “LED-pumped whispering-gallery laser,” Photon. Res. 5 , B34–B38 (2017).
【10】Z. Yu, H. Cui, and X. Sun, “Genetically optimized on-chip wideband ultracompact reflectors and Fabry-Perot cavities,” Photon. Res. 5 , B15 –B19 (2017).
【11】X. Chen, C. S. Fenrich, M. Xue, M.-Y. Kao, K. Zang, C.-Y. Lu, E. T. Fei, Y. Chen, Y. Huo, T. I. Kamins, and J. S. Harris, “Tensile-strained Ge/SiGe multiple quantum well microdisks,” Photon. Res. 5 , B7–B14 (2017).
【12】J. Ma, X. Jiang, and M. Xiao, “Kerr frequency combs in large-size, ultra-high-Q toroid microcavities with low repetition rates,” 5 , B5 4–B5 8 (2017).
【13】T. Harayama, and S. Shinohara, “Two-dimensional microcavity lasers,” Laser Photon. Rev. 5 , 247–271 (2010).
【14】W. Bogaerts, P. De Heyn, T. Van Vaerenbergh, K. De Vos, S. Kumar Selvaraja, T. Claes, P. Dumon, P. Bienstman, D. Van Thourhout, and R. Baets, “Silicon microring resonators,” Laser Photon. Rev. 6 , 47–73 (2012).
【15】H. Cao, and J. Wiersig, “Dielectric microcavities: model systems for wave chaos and non-Hermitian physics,” Rev. Mod. Phys. 87 , 61–111 (2015).
【16】D. V. Strekalov, C. Marquardt, A. B. Matsko, H. G. L. Schwefel, and G. Leuchs, “Nonlinear and quantum optics with whispering gallery resonators,” J. Opt. 18 , 123002 (2016).
【17】I. Breunig, “Three-wave mixing in whispering gallery resonators,” Laser Photon. Rev. 10 , 569–587 (2016).
【18】X.-F. Jiang, C.-L. Zou, L. Wang, Q. Gong, and Y.-F. Xiao, “Whispering-gallery microcavities with unidirectional laser emission,” Laser Photon. Rev. 10 , 40–61 (2016).
【19】G. Lin, A. Coillet, and Y. K. Chembo, “Nonlinear photonics with high-Q whispering-gallery-mode resonators,” Adv. Opt. Photon. 9 , 828–890 (2017).
Li Ge, Liang Feng, and Harald G. L. Schwefel, "Optical microcavities: new understandings and developments," Photonics Research 5(6), OM1 (2017)