Phonon mediated photodetector |
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| Authors: | HC Liu CY Song ZR Wasilewski JA Gupta M Buchanan |
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| Institution: | 1. Department of Internal Medicine, Collagen and Minoritarian Diseases, Virgen del Rocio Hospital, Seville, Spain;2. Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, OH, USA;1. Department of Clinical Microbiology and Infectious Diseases, Hadassah–Hebrew University Medical Center, POB 12000, 91120 Jerusalem, Israel;2. Internal Medicine Department, Hadassah–Hebrew University Medical Center, Jerusalem, Israel;3. Heart Institute and Department of Medicine, Hadassah–Hebrew University Medical Center, Jerusalem, Israel |
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| Abstract: | Quantum-wells and quantum dots and related semiconductor nanostructures have been widely investigated for infrared 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. 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. |
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