TY - GEN
T1 - Tunable Antenna-Coupled Intersubband Terahertz (TACIT) Mixer
T2 - 48th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2023
AU - Yoo, Changyun
AU - West, Ken W.
AU - Pfeiffer, Loren N.
AU - Kawamura, Jonathan H.
AU - Sherwin, Mark S.
AU - Karasik, Boris S.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The Tunable Antenna-Coupled Intersubband Terahertz (TACIT) mixer is a novel THz heterodyne detector based on intersubband transitions in single GaAs/AlGaAs quantum-well heterostructures. With the ability to operate at higher temperatures (up to 60 K) and wide in-situ frequency tunability (2-5 THz), TACIT mixers have potential for a low-noise (with TSSB ∼ 2,000K) operation with a low (1μW) required local-oscillator power. These properties offer both flexibility in detection frequency and multi-pixel array capability, making TACIT mixers an attractive THz heterodyne mixer technology for high-resolution spectroscopy in space applications. Here, we report on the recent development of 2.52 THz TACIT mixers fabricated from single, modulation-doped, 40-nm wide, rectangular GaAs/AlGaAs quantum wells for 2.52 THz operation. Direct detection results at 20 K show that the detection frequency of a single TACIT device is widely tunable from 2.52 THz to 4.25 THz. We also present the heterodyne detection results at 2.52 THz at 10 K.
AB - The Tunable Antenna-Coupled Intersubband Terahertz (TACIT) mixer is a novel THz heterodyne detector based on intersubband transitions in single GaAs/AlGaAs quantum-well heterostructures. With the ability to operate at higher temperatures (up to 60 K) and wide in-situ frequency tunability (2-5 THz), TACIT mixers have potential for a low-noise (with TSSB ∼ 2,000K) operation with a low (1μW) required local-oscillator power. These properties offer both flexibility in detection frequency and multi-pixel array capability, making TACIT mixers an attractive THz heterodyne mixer technology for high-resolution spectroscopy in space applications. Here, we report on the recent development of 2.52 THz TACIT mixers fabricated from single, modulation-doped, 40-nm wide, rectangular GaAs/AlGaAs quantum wells for 2.52 THz operation. Direct detection results at 20 K show that the detection frequency of a single TACIT device is widely tunable from 2.52 THz to 4.25 THz. We also present the heterodyne detection results at 2.52 THz at 10 K.
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U2 - 10.1109/IRMMW-THz57677.2023.10299371
DO - 10.1109/IRMMW-THz57677.2023.10299371
M3 - Conference contribution
AN - SCOPUS:85177685986
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
BT - IRMMW-THz 2023 - 48th Conference on Infrared, Millimeter, and Terahertz Waves
PB - IEEE Computer Society
Y2 - 17 September 2023 through 22 September 2023
ER -