Self-assembled optical detectors for optical fiber sensors

H. Ruan; Y. Kang; J. Lalli; R. O. Claus

doi:10.1117/12.738556

2 July 2007 Self-assembled optical detectors for optical fiber sensors

H. Ruan, Y. Kang, J. Lalli, R. O. Claus

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66192W (2007) https://doi.org/10.1117/12.738556
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

Recent work in the fabrication of self assembled quantum dot (QD) detectors for optical fiber sensors is reported in this paper. The ability to develop the QD based devices and materials via the electrostatic self-assembly (ESA) process has been demonstrated. The QD precursor nanocluster materials involved in ESA have been designed and synthesized to proper size, stabilized in an aqueous-based solution, and functionalized to allow self-assembly. The optical fiber sensor instrumentation has been developed to monitor the reflected optical power with the buildup of the QD layers on the fiber endface during the ESA process. The results are confirmed by observing the effects of low-finesse QD Fabry-Perot interferometric cavities formed via such processes on the ends of optical fibers. The photocurrent-voltage characteristics show a diode-like behavior with linear photocurrent in the reverse bias and nonlinearity in the forward bias. It is suggested that fast response times can be achieved due to the high carrier mobilities that arise in part due to structure of the materials formed via the solution-based ESA process.

Citation Download Citation

H. Ruan, Y. Kang, J. Lalli, and R. O. Claus "Self-assembled optical detectors for optical fiber sensors", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66192W (2 July 2007); https://doi.org/10.1117/12.738556

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