Self-assembled dye-doped polymer microspheres as whispering gallery mode lasers

Xiaogang Chen; Hongyi Sun; Hongqin Yang; Xiang Wu; Shusen Xie

doi:10.1117/12.2245693

31 October 2016 Self-assembled dye-doped polymer microspheres as whispering gallery mode lasers

Xiaogang Chen, Hongyi Sun, Hongqin Yang, Xiang Wu, Shusen Xie

Proceedings Volume 10024, Optics in Health Care and Biomedical Optics VII; 100242F (2016) https://doi.org/10.1117/12.2245693
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Microlasers based on high-Q whispering-gallery-mode (WGM) resonances are promising low-threshold laser sources for bio-sensing and imaging applications. In this talk, we demonstrate a cost effective approach to obtain size-controllable polymer microspheres, which can be served as good WGM microcavities. By injecting SU-8 solution into low-refractiveindex UV polymer, self-assembled spherical droplet with smooth surface can be created inside the elastic medium and then solidified by UV exposure. The size of the microspheres can be tuned from several to hundreds of microns. WGM Lasing has been achieved by optically pumping the dye-doped microspheres with ns lasers. Experimental results show that the microsphere lasers have high quality factors and low lasing thresholds. The self-assembled dye-doped polymer microspheres would provide an excellent platform for the micro-laser sources in on-chip biosensing and imaging systems.

Citation Download Citation

Xiaogang Chen, Hongyi Sun, Hongqin Yang, Xiang Wu, and Shusen Xie "Self-assembled dye-doped polymer microspheres as whispering gallery mode lasers", Proc. SPIE 10024, Optics in Health Care and Biomedical Optics VII, 100242F (31 October 2016); https://doi.org/10.1117/12.2245693

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available