Surface-acoustic-wave-controlled photodetectors

Fernando Calle; T. Palacios; J. Pedros; J. Grajal

doi:10.1117/12.566698

9 June 2004 Surface-acoustic-wave-controlled photodetectors

Fernando Calle, T. Palacios, J. Pedros, J. Grajal

Proceedings Volume 5502, Second European Workshop on Optical Fibre Sensors; (2004) https://doi.org/10.1117/12.566698
Event: Second European Workshop on Optical Fibre Sensors, 2004, Santander, Spain

Abstract

Nitride semiconductor devices have recently been developed for a number of electronic and optoelectronic applications, including amplifiers, light emitters and several kinds of sensors. In particular, ultraviolet detectors with a tailored spectral response can be achieved due to the direct wide bandgap of AlGaN alloys; on the other side, acoustic wave devices take advantage of the piezoelectric and elastic properties. In this work, we will describe the fabrication and characterization of a novel kind of optical detector, based on the interaction of surface acoustic waves and photocarriers. The response, which is linear with the incident optical power, can be controlled either by modifying the input power of the RF signal which creates the acoustic wave, or by tuning its frequency, in the latter case with a very high sensitivity. Several applications can be envisaged as a result of this synergy, such as imaging displays and electro-optical modulators.

Citation Download Citation

Fernando Calle, T. Palacios, J. Pedros, and J. Grajal "Surface-acoustic-wave-controlled photodetectors", Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); https://doi.org/10.1117/12.566698

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