中国物理B ›› 2015, Vol. 24 ›› Issue (10): 104207-104207.doi: 10.1088/1674-1056/24/10/104207

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

Movement of a millimeter-sized oil drop pushed by optical force

张莉, 佘卫龙   

  1. State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China
  • 收稿日期:2015-01-22 修回日期:2015-04-03 出版日期:2015-10-05 发布日期:2015-10-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 90921009 and 11274401).

Movement of a millimeter-sized oil drop pushed by optical force

Zhang Li (张莉), She Wei-Long (佘卫龙)   

  1. State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China
  • Received:2015-01-22 Revised:2015-04-03 Online:2015-10-05 Published:2015-10-05
  • Contact: She Wei-Long E-mail:shewl@mail.sysu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 90921009 and 11274401).

摘要: We show experimentally that when an unfocused continuous wave (CW) laser beam is obliquely incident onto the surface of a millimeter-sized mineral oil drop on sucrose solution, it will exert a pushing force on the oil drop, making it move forwards along the surface of the sucrose solution. However, after a period of time, the oil drop stops moving. This can be explained as the phenomenon caused by the change of Abraham momentum, the optical gradient force, and friction together.

关键词: optical force, optical manipulation, the movement of a millimeter-sized oil drop

Abstract: We show experimentally that when an unfocused continuous wave (CW) laser beam is obliquely incident onto the surface of a millimeter-sized mineral oil drop on sucrose solution, it will exert a pushing force on the oil drop, making it move forwards along the surface of the sucrose solution. However, after a period of time, the oil drop stops moving. This can be explained as the phenomenon caused by the change of Abraham momentum, the optical gradient force, and friction together.

Key words: optical force, optical manipulation, the movement of a millimeter-sized oil drop

中图分类号:  (Mechanical effects of light on material media, microstructures and particles)

  • 42.50.Wk
42.62.-b (Laser applications)