| DOI | Resolve DOI: https://doi.org/10.1117/12.874098 |
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| Author | Search for: Liu, H.C.1; Search for: Song, C.Y.1; Search for: Wasilewski, Z.R.1; Search for: Buchanan, M.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Conference | Quantum Sensing and Nanophotonic Devices VIII, January 23-27, 2011, San Francisco, CA, USA |
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| Subject | Compound semiconductors; Coupled systems; Electrons and phonons; Fano resonances; General approach; infrared; Intersubband transitions; Photocurrent spectrum; Polar optical phonons; Processing technologies; quantum well; Semiconductor nanostructures; Tera Hertz; Infrared detectors; Nanophotonics; Optoelectronic devices; Phonons; Photonic devices; Polarons; Semiconductor devices; Semiconductor growth; Semiconductor quantum wells; Quantum well infrared photodetectors |
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| Abstract | Thanks to the modern compound semiconductor growth and processing technologies, quantum wells and related semiconductor nanostructures have been widely investigated for infrared-terahertz devices. Here we propose a new general approach to make use of polar optical phonons in quantum wells for infrared (IR) and terahertz (THz) detection. Polar optical phonons strongly couple with both electrons and photons, and hence are potentially useful for photonic devices. As the first example, we show the coupling of phonon and intersubband transition leading to Fano resonance in photocurrent spectra. We investigate the phenomenon experimentally in specially designed GaAs/AlGaAs quantum well infrared photodetectors. Finally, we discuss the future research and potentials. Strongly coupled systems of electrons and phonons, i.e., polarons, may lead to new IR-THz photodetectors. © 2011 SPIE. |
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| Publication date | 2011 |
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| Publisher | SPIE |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21271544 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | fda3ec6e-6583-48f6-b9e7-59761d42bb55 |
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| Record created | 2014-03-24 |
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| Record modified | 2020-04-21 |
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