中国物理B ›› 2018, Vol. 27 ›› Issue (8): 87301-087301.doi: 10.1088/1674-1056/27/8/087301

所属专题: SPECIAL TOPIC — Nanophotonics

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Transverse localization of Tamm plasmon in metal-DBR structure with disordered layer

Deng-Ju He(何登举), Wei-Li Zhang(张伟利), Rui Ma(马瑞), Shan-Shan Wang(王珊珊), Xiao-Min Wu(吴小敏), Yun-Jiang Rao(饶云江)   

  1. Key Laboratory of Optical Fiber Sensing and Communications, Education Ministry of China, University of Electronic Science and Technology of China, Chengdu, China
  • 收稿日期:2018-04-08 修回日期:2018-05-13 出版日期:2018-08-05 发布日期:2018-08-05
  • 通讯作者: Wei-Li Zhang E-mail:wl_zhang@aliyun.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61575040 and 61635005) and the 111 Project, China (Grant No. B14039).

Transverse localization of Tamm plasmon in metal-DBR structure with disordered layer

Deng-Ju He(何登举), Wei-Li Zhang(张伟利), Rui Ma(马瑞), Shan-Shan Wang(王珊珊), Xiao-Min Wu(吴小敏), Yun-Jiang Rao(饶云江)   

  1. Key Laboratory of Optical Fiber Sensing and Communications, Education Ministry of China, University of Electronic Science and Technology of China, Chengdu, China
  • Received:2018-04-08 Revised:2018-05-13 Online:2018-08-05 Published:2018-08-05
  • Contact: Wei-Li Zhang E-mail:wl_zhang@aliyun.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61575040 and 61635005) and the 111 Project, China (Grant No. B14039).

摘要:

Transverse localization of the optical Tamm plasmon (OTP) is studied in a metal-distributed Bragg reflector (DBR) structure with a one-dimensional disordered layer embedded at the interface between the metal and the DBR. The embedded disordered layer induces multiple scattering and interference of light, forming the light localization in the transverse direction. This together with the formation of Tamm plasmonic modes at the metal-DBR interface (i.e., the confinement of light in the longitudinal direction), gives birth to the so called transverse-localized Tamm plasmon. It is shown that for both transverse electric (TE) and transverse magnetic (TM) polarized light injection, the excited transverse-localized Tamm plasmon broadens and splits the dispersion curve due to spatial incoherence in the transverse direction, thus proving the stronger light confinement especially in the TE polarized injection. By adding the gain medium, specific random lasing modes are observed. The proposed study could be an efficient way of trapping and locally enhancing light on a subwavelength scale, which is useful in applications of random lasers, optical sensing, and imaging.

关键词: optical Tamm plasmon, light localization, random laser, distributed Bragg reflector

Abstract:

Transverse localization of the optical Tamm plasmon (OTP) is studied in a metal-distributed Bragg reflector (DBR) structure with a one-dimensional disordered layer embedded at the interface between the metal and the DBR. The embedded disordered layer induces multiple scattering and interference of light, forming the light localization in the transverse direction. This together with the formation of Tamm plasmonic modes at the metal-DBR interface (i.e., the confinement of light in the longitudinal direction), gives birth to the so called transverse-localized Tamm plasmon. It is shown that for both transverse electric (TE) and transverse magnetic (TM) polarized light injection, the excited transverse-localized Tamm plasmon broadens and splits the dispersion curve due to spatial incoherence in the transverse direction, thus proving the stronger light confinement especially in the TE polarized injection. By adding the gain medium, specific random lasing modes are observed. The proposed study could be an efficient way of trapping and locally enhancing light on a subwavelength scale, which is useful in applications of random lasers, optical sensing, and imaging.

Key words: optical Tamm plasmon, light localization, random laser, distributed Bragg reflector

中图分类号:  (Electron states at surfaces and interfaces)

  • 73.20.-r
71.36.+c (Polaritons (including photon-phonon and photon-magnon interactions)) 78.67.-n (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures) 78.67.Pt (Multilayers; superlattices; photonic structures; metamaterials)