Photon upconversion devices for imaging

H. C. Liu; H. Luo; D. Ban; M. Buchanan; Z. R. Wasilewski; A. J. SpringThorpe; P. J. Poole

doi:10.1117/12.792384

11 March 2008 Photon upconversion devices for imaging

H. C. Liu, H. Luo, D. Ban, M. Buchanan, Z. R. Wasilewski, A. J. SpringThorpe, P. J. Poole

Proceedings Volume 6984, Sixth International Conference on Thin Film Physics and Applications; 698431 (2008) https://doi.org/10.1117/12.792384
Event: Sixth International Conference on Thin Film Physics and Applications, 2007, Shanghai, China

Abstract

This paper reviews our research on photon upconversion devices for wavelengths from 1.5 μm to 0.87 μm. The 1.5 μm is chosen for its importance for eye-safe active imaging; whereas 0.87 μm corresponds to the bandgap of GaAs which is the active region of our high efficiency light emitting diode (LED). The basic idea is to integrate a 1.5 μm detector with a 0.87 µm LED, connected in series. The detected photocurrent drives the LED, thereby achieving the upconversion. Various approaches of integration methods and device designs have been tested. The upconversion approach provides an alternative to the standard hybrid integration with readout circuits and may be advantageous for some applications.

Citation Download Citation

H. C. Liu, H. Luo, D. Ban, M. Buchanan, Z. R. Wasilewski, A. J. SpringThorpe, and P. J. Poole "Photon upconversion devices for imaging", Proc. SPIE 6984, Sixth International Conference on Thin Film Physics and Applications, 698431 (11 March 2008); https://doi.org/10.1117/12.792384

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