Three-color MOVPE MCT diodes

L. G. Hipwood; C. L. Jones; C. D. Maxey; H. W. Lau; J. Fitzmaurice; R. A. Catchpole; M. Ordish

doi:10.1117/12.667606

17 May 2006 Three-color MOVPE MCT diodes

L. G. Hipwood, C. L. Jones, C. D. Maxey, H. W. Lau, J. Fitzmaurice, R. A. Catchpole, M. Ordish

Proceedings Volume 6206, Infrared Technology and Applications XXXII; 620612 (2006) https://doi.org/10.1117/12.667606
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

The drive towards improved target recognition has led to an increasing interest in detection in more than one infrared band. Many groups have demonstrated two-color detection, typically by employing two back-to-back junctions, one for each color. In this paper we describe a method for introducing a third color via an absorber of intermediate wavelength placed between the two junctions. Electronic barriers are used to isolate this intermediate region. The design and location of the barriers in the structure are such that the barrier height is readily controlled by the applied bias, enabling the intermediate color to be turned on by applied bias. To provide the positional and doping control needed in the materials structure, MOVPE growth of MCT is used. Both FPA's hybridised to a read-out chips with switchable inputs, and test diodes for direct assessment, have been produced. This paper concentrates on the test diode assessment, as this provides the greater insight into the operation of the device. It is envisaged that such a device will be used with sequential framing of the different colors to provide quasi-temporal imaging. The successful demonstration of the 3-color concept is described.

Citation Download Citation

L. G. Hipwood, C. L. Jones, C. D. Maxey, H. W. Lau, J. Fitzmaurice, R. A. Catchpole, and M. Ordish "Three-color MOVPE MCT diodes", Proc. SPIE 6206, Infrared Technology and Applications XXXII, 620612 (17 May 2006); https://doi.org/10.1117/12.667606

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