Dr. Debdas Pal Profile

Dr. Debdas Pal

at Carnegie Mellon Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 17 May 2006 Paper

The promise of quantum-dot infrared photodetectors

E. Towe, D. Pal

Proceedings Volume 6206, 62060K (2006) https://doi.org/10.1117/12.673824

KEYWORDS: Infrared radiation, Quantum well infrared photodetectors, Photodetectors, Infrared detectors, Sensors, Infrared photography, Gallium arsenide, Temperature metrology, Quantum dots, Semiconductors

Read Abstract +

Engineered semiconductor quantum structures that enforce carrier confinement in all three spatial dimensions have recently become of interest for potential applications in the sensing of infrared radiation via intersub-level transitions. These structures, most often called quantum dots, may offer a viable alternative to the mercury cadmium telluride semiconductor and GaAs/(Al,Ga)As quantum-well structures for infrared detection. Their major advantages for detection include (i) operation under normal-incidence illumination, (ii) a predicted high responsivity due to a long electron lifetime in the excited states, and (iii) a potential for high-temperature operation. This paper will review the current-state-of-development of (In,Ga)As/GaAs quantum-dot infrared detectors that are sensitive to light in the middle wavelength infrared (3-5 μm) region of the electromagnetic spectrum. The paper will also discuss some of the leading edge experimental results that suggest that quantum-dot active regions may offer a route to elevated device operating temperatures (> 150 K).

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years