An inter-subband device with terahertz applications

Philip D. Buckle; Philip Dawson; Mark A. Lynch; Chun Yi Kuo; Mohammed Missous; William S. Truscott

doi:10.1109/22.841953

An inter-subband device with terahertz applications

Philip D. Buckle^*, Philip Dawson, Mark A. Lynch, Chun Yi Kuo, Mohammed Missous, William S. Truscott

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

A theoretical analysis of a modulator based on two coupled resonators is presented in this paper. This modulator exhibits a resonant enhancement in its response. It is used as a component of tunneling structures designed for operation at terahertz frequencies; unlike conventional resonant tunneling structures, these use triple barriers. Data from optical and electrical measurements on a series of devices based on one design of a triple-barrier tunneling structure have been analyzed to estimate their behavior at frequencies over 1 THz. The analysis gives values for the resonantly enhanced admittance, its bandwidth, the bias-frequency relationship, and the requirements for a matching circuit to a 50-fi environment. The results show that one existing structure might be used in oscillators working at 1 THz.

Original language	English
Pages (from-to)	632-638
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	48
Issue number	4 PART 2
DOIs	https://doi.org/10.1109/22.841953
Publication status	Published - 1 Dec 2000

Keywords

Inter-subband devices
Microwave filters
Modulators
Resonant tunneling
Terahertz oscillators
Triple-barrier devices

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10.1109/22.841953

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title = "An inter-subband device with terahertz applications",

abstract = "A theoretical analysis of a modulator based on two coupled resonators is presented in this paper. This modulator exhibits a resonant enhancement in its response. It is used as a component of tunneling structures designed for operation at terahertz frequencies; unlike conventional resonant tunneling structures, these use triple barriers. Data from optical and electrical measurements on a series of devices based on one design of a triple-barrier tunneling structure have been analyzed to estimate their behavior at frequencies over 1 THz. The analysis gives values for the resonantly enhanced admittance, its bandwidth, the bias-frequency relationship, and the requirements for a matching circuit to a 50-fi environment. The results show that one existing structure might be used in oscillators working at 1 THz.",

keywords = "Inter-subband devices, Microwave filters, Modulators, Resonant tunneling, Terahertz oscillators, Triple-barrier devices",

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AU - Buckle, Philip D.

AU - Dawson, Philip

AU - Lynch, Mark A.

AU - Kuo, Chun Yi

AU - Missous, Mohammed

AU - Truscott, William S.

PY - 2000/12/1

Y1 - 2000/12/1

N2 - A theoretical analysis of a modulator based on two coupled resonators is presented in this paper. This modulator exhibits a resonant enhancement in its response. It is used as a component of tunneling structures designed for operation at terahertz frequencies; unlike conventional resonant tunneling structures, these use triple barriers. Data from optical and electrical measurements on a series of devices based on one design of a triple-barrier tunneling structure have been analyzed to estimate their behavior at frequencies over 1 THz. The analysis gives values for the resonantly enhanced admittance, its bandwidth, the bias-frequency relationship, and the requirements for a matching circuit to a 50-fi environment. The results show that one existing structure might be used in oscillators working at 1 THz.

AB - A theoretical analysis of a modulator based on two coupled resonators is presented in this paper. This modulator exhibits a resonant enhancement in its response. It is used as a component of tunneling structures designed for operation at terahertz frequencies; unlike conventional resonant tunneling structures, these use triple barriers. Data from optical and electrical measurements on a series of devices based on one design of a triple-barrier tunneling structure have been analyzed to estimate their behavior at frequencies over 1 THz. The analysis gives values for the resonantly enhanced admittance, its bandwidth, the bias-frequency relationship, and the requirements for a matching circuit to a 50-fi environment. The results show that one existing structure might be used in oscillators working at 1 THz.

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KW - Microwave filters

KW - Modulators

KW - Resonant tunneling

KW - Terahertz oscillators

KW - Triple-barrier devices

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JO - IEEE Transactions on Microwave Theory and Techniques

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An inter-subband device with terahertz applications

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