50-Ω-matched system for low-temperature measurements of the time-resolved conductance of low-dimensional semiconductors

B. Naser; J. Heeren; D. K. Ferry; J. P. Bird

doi:10.1063/1.2132268

50-Ω-matched system for low-temperature measurements of the time-resolved conductance of low-dimensional semiconductors

B. Naser, J. Heeren, D. K. Ferry, J. P. Bird

Research output: Contribution to journal › Review article › peer-review

9 Scopus citations

Abstract

We describe the construction of a low-temperature cryostat that may be used to study the time-dependent conductivity of low-dimensional semiconductors with time resolution of a few-hundred picoseconds. The system makes use of semirigid coaxial cables to provide the necessary connections from room-temperature instrumentation to the low-temperature stage, and features a specially designed launch that provides efficient 50 Ω impedance matching to the semiconductor system of interest. In order to explore the capabilities of the system, we perform time-resolved measurements of the magnetotransport properties of a high mobility GaAsAlGaAs two-dimensional electron gas.

Original language	English (US)
Article number	113905
Pages (from-to)	1-5
Number of pages	5
Journal	Review of Scientific Instruments
Volume	76
Issue number	11
DOIs	https://doi.org/10.1063/1.2132268
State	Published - 2005

ASJC Scopus subject areas

Instrumentation

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title = "50-Ω-matched system for low-temperature measurements of the time-resolved conductance of low-dimensional semiconductors",

abstract = "We describe the construction of a low-temperature cryostat that may be used to study the time-dependent conductivity of low-dimensional semiconductors with time resolution of a few-hundred picoseconds. The system makes use of semirigid coaxial cables to provide the necessary connections from room-temperature instrumentation to the low-temperature stage, and features a specially designed launch that provides efficient 50 Ω impedance matching to the semiconductor system of interest. In order to explore the capabilities of the system, we perform time-resolved measurements of the magnetotransport properties of a high mobility GaAsAlGaAs two-dimensional electron gas.",

author = "B. Naser and J. Heeren and Ferry, {D. K.} and Bird, {J. P.}",

note = "Funding Information: This work is supported by the Office of Naval Research (N00014-98-0594) and the Department of Energy (DE-FG02-04ER46180). ",

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T1 - 50-Ω-matched system for low-temperature measurements of the time-resolved conductance of low-dimensional semiconductors

AU - Naser, B.

AU - Heeren, J.

AU - Ferry, D. K.

AU - Bird, J. P.

N1 - Funding Information: This work is supported by the Office of Naval Research (N00014-98-0594) and the Department of Energy (DE-FG02-04ER46180).

PY - 2005

Y1 - 2005

N2 - We describe the construction of a low-temperature cryostat that may be used to study the time-dependent conductivity of low-dimensional semiconductors with time resolution of a few-hundred picoseconds. The system makes use of semirigid coaxial cables to provide the necessary connections from room-temperature instrumentation to the low-temperature stage, and features a specially designed launch that provides efficient 50 Ω impedance matching to the semiconductor system of interest. In order to explore the capabilities of the system, we perform time-resolved measurements of the magnetotransport properties of a high mobility GaAsAlGaAs two-dimensional electron gas.

AB - We describe the construction of a low-temperature cryostat that may be used to study the time-dependent conductivity of low-dimensional semiconductors with time resolution of a few-hundred picoseconds. The system makes use of semirigid coaxial cables to provide the necessary connections from room-temperature instrumentation to the low-temperature stage, and features a specially designed launch that provides efficient 50 Ω impedance matching to the semiconductor system of interest. In order to explore the capabilities of the system, we perform time-resolved measurements of the magnetotransport properties of a high mobility GaAsAlGaAs two-dimensional electron gas.

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50-Ω-matched system for low-temperature measurements of the time-resolved conductance of low-dimensional semiconductors

Abstract

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