Two-dimensional freeform optical trapping by surface plasmon enhancement and patterned excitation

H. W. Su*, C. Y. Lin, S. J. Chen

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

In this study, a two-dimensional (2D) freeform optical trapping system based on evanescent wave excitation has been developed. The 2D optical trapping system with surface plasmon (SP) enhancement and patterned excitation via digital micromirror device (DMD) which can provide a strong and freeform intensity distribution on the metal surface. Through a gold film with a thickness of 45 nm in the near infrared region, the SP approach with 40-fold electric field enhancement can enhance the intensity distribution on the metal surface. Unlike a fixed gold pattern film fabricated at a glass surface, the freeform SP-enhanced optical trapping technique is more convenient and efficient for biomedical applications.

原文English
主出版物標題Optical Trapping and Optical Micromanipulation IX
DOIs
出版狀態Published - 1 12月 2012
事件Optical Trapping and Optical Micromanipulation IX - San Diego, CA, United States
持續時間: 12 8月 201216 8月 2012

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
8458
ISSN(列印)0277-786X

Conference

ConferenceOptical Trapping and Optical Micromanipulation IX
國家/地區United States
城市San Diego, CA
期間12/08/1216/08/12

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