Enhanced performance of resonant sub-terahertz detection in a plasmonic cavity

被引：56

作者：

Dyer, G. C. ^{[1
]}

Preu, S. ^{[2
]}

Aizin, G. R. ^{[3
]}

Mikalopas, J. ^{[3
]}

Grine, A. D. ^{[1
]}

Reno, J. L. ^{[1
]}

Hensley, J. M. ^{[4
]}

Vinh, N. Q. ^{[2
]}

Gossard, A. C. ^{[2
]}

Sherwin, M. S. ^{[2
]}

Allen, S. J. ^{[2
]}

Shaner, E. A. ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

[2] Univ Calif Santa Barbara, Inst Terahertz Sci & Technol, Santa Barbara, CA 93106 USA

[3] CUNY, Kingsborough Coll, Brooklyn, NY 11235 USA

[4] Phys Sci Inc, Andover, MA 01810 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 08期

关键词：

FIELD-EFFECT TRANSISTOR; GENERATION; RADIATION; ANTENNAS; LAYERS; MODES; BAND;

D O I：

10.1063/1.3687698

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A multi-gate high electron mobility transistor coupled to a log-periodic antenna was engineered to detect sub-terahertz radiation through resonant excitation of plasmon modes in the channel. The device was integrated with a silicon hyper-hemispherical lens in order to enhance radiation collection and eliminate parasitic substrate modes. The continuous detector response spectrum from 185 GHz to 380 GHz indicates the presence of distinct collective plasmonic cavity modes resulting from the quantization of the plasmon wavevector. In a bolometric detection mode, a noise equivalent power of less than 50 pW/Hz(1/2) and a responsivity exceeding 100 kV/W have been measured at 11.5 K. (C) 2012 American Institute of Physics. [doi:10.1063/1.3687698]

引用

页数：4

共 28 条

[21] Terahertz measurements of resonant planar antennas coupled to low-temperature-grown GaAs photomixers [J].