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pro vyhledávání: '"Yoo Changyun"'
Autor:
Yoo Changyun, Sherwin Mark S., West Kenneth W., Pfeiffer Loren N., Kawamura Jonathan H., Karasik Boris S.
Publikováno v:
Nanophotonics, Vol 13, Iss 10, Pp 1711-1723 (2024)
We investigate the THz intersubband absorption behavior of a single 40-nm wide GaAs/AlGaAs square quantum well (QW) using Johnson noise thermometry. In our measurements, the Johnson noise associated with intersubband absorption is measured from the i
Externí odkaz:
https://doaj.org/article/4808b3f5bfb74ed9a9f63cfd787671b3
Autor:
Yoo, Changyun, West, Kenneth W., Pfeiffer, Loren N., Curwen, Chris A., Kawamura, Jonathan H., Karasik, Boris S., Sherwin, Mark S.
We present a reliable flip-chip technique for dual-side processing of thin (<1 micron) high-mobility GaAs/AlGaAs epitaxial layers. The technique allows the fabrication of small (micron-scale with standard UV photolithography) patterned back gates and
Externí odkaz:
http://arxiv.org/abs/2302.11057
Autor:
Yoo, Changyun, Huang, Mengchen, Kawamura, Jonathan, West, Kenneth, Pfeiffer, Loren, Karasik, Boris, Sherwin, Mark
A fast, voltage-tunable terahertz mixer based on the intersubband transition of a high-mobility 2-dimensional electron gas (2DEG) has been fabricated from a single 40 nm GaAs-AlGaAs square quantum well heterostructure. The device is called a Tunable
Externí odkaz:
http://arxiv.org/abs/1910.01664