中国物理B ›› 2018, Vol. 27 ›› Issue (10): 104210-104210.doi: 10.1088/1674-1056/27/10/104210

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

Theoretical analysis of optical force density distribution inside subwavelength-diameter optical fibers

Yun-Yuan Zhang(张运原), Hua-Kang Yu(虞华康), Xiang-Ke Wang(王向珂), Wan-Ling Wu(吴婉玲), Fu-Xing Gu(谷付星), Zhi-Yuan Li(李志远)   

  1. 1 School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, China;
    2 Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System(Ministry of Education), University of Shanghai for Science and Technology, Shanghai 200093, China
  • 收稿日期:2018-06-14 修回日期:2018-07-06 出版日期:2018-10-05 发布日期:2018-10-05
  • 通讯作者: Hua-Kang Yu, Zhi-Yuan Li E-mail:hkyu@scut.edu.cn;phzyli@scut.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11604230 and 11434017), the Guangdong Provincial Innovative and Entrepreneurial Research Team Program, China (Grant No. 2016ZT06C594), and the National Key Research and Development Program of China (Grant No. 2018YFA 0306200).

Theoretical analysis of optical force density distribution inside subwavelength-diameter optical fibers

Yun-Yuan Zhang(张运原)1, Hua-Kang Yu(虞华康)1, Xiang-Ke Wang(王向珂)1, Wan-Ling Wu(吴婉玲)1, Fu-Xing Gu(谷付星)2, Zhi-Yuan Li(李志远)1   

  1. 1 School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, China;
    2 Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System(Ministry of Education), University of Shanghai for Science and Technology, Shanghai 200093, China
  • Received:2018-06-14 Revised:2018-07-06 Online:2018-10-05 Published:2018-10-05
  • Contact: Hua-Kang Yu, Zhi-Yuan Li E-mail:hkyu@scut.edu.cn;phzyli@scut.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11604230 and 11434017), the Guangdong Provincial Innovative and Entrepreneurial Research Team Program, China (Grant No. 2016ZT06C594), and the National Key Research and Development Program of China (Grant No. 2018YFA 0306200).

摘要:

We investigate the microscopic optical force density distributions respectively inside a subwavelength-diameter (SD) fiber with flat endface and inside one with oblique endface by using a finite-difference time-domain (FDTD) method. Optical force density distributions at the fiber endfaces can now be readily available. The complete knowledge of optical force density distributions not only reveal features regarding the microscopic near-field optomechanical interaction, but also provide straightforward explanations for the sideway deflections and other mechanical motions. Our results can provide a useful reference for better understanding the mechanical influence when light transports in a microscale or nanoscale structure and for developing future highly-sensitive optomechanical devices.

关键词: subwavelength-diameter optical fibers, optical force

Abstract:

We investigate the microscopic optical force density distributions respectively inside a subwavelength-diameter (SD) fiber with flat endface and inside one with oblique endface by using a finite-difference time-domain (FDTD) method. Optical force density distributions at the fiber endfaces can now be readily available. The complete knowledge of optical force density distributions not only reveal features regarding the microscopic near-field optomechanical interaction, but also provide straightforward explanations for the sideway deflections and other mechanical motions. Our results can provide a useful reference for better understanding the mechanical influence when light transports in a microscale or nanoscale structure and for developing future highly-sensitive optomechanical devices.

Key words: subwavelength-diameter optical fibers, optical force

中图分类号:  (Fiber optics)

  • 42.81.-i
42.81.Qb (Fiber waveguides, couplers, and arrays) 42.81.Wg (Other fiber-optical devices)