Two-color quantum well infrared photodetector simultaneously working at 10—14 μm | Zendy

Xiaoyu Liu | Zendy; Ma Wenquan | Zendy; Yanhua Zhang | Zendy; Yong-Heng Huo | Zendy; Chong Ming | Zendy; Lianghui Chen | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Two-color quantum well infrared photodetector simultaneously working at 10—14 μm

Author(s) -

Xiaoyu Liu,

Ma Wenquan,

Yanhua Zhang,

Yong-Heng Huo,

Chong Ming,

Lianghui Chen

Publication year - 2010

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.59.5720

Subject(s) - quantum well infrared photodetector , photodetector , excited state , photocurrent , ground state , infrared , optoelectronics , wavelength , physics , quantum well , doping , quantum , materials science , optics , atomic physics , quantum mechanics , laser

We have demonstrated a two-color quantum well infrared photodetector (QWIP) exhibiting simultaneous photoresponse with cutoff wavelengths at 11.8 and 14.5 μm, respectively. Strong photocurrent signals are observed at temperature of 77 K. The simultaneous two-color photoresponse is achieved by utilizing a simple design by broadening the width of the quantum well and selecting an appropriate doping density. The two peaks are attributed to the intersubband transitions from the ground state to the first excited state (bound state) and to the fifth excited state (continuum state), respectively.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research