Investigation of detection properties of planar microwave diodes based on A3B5 semiconductor compounds in millimeter–wavelength range

Anbinderis, Maksimas

doi:10.20334/2023-001-m

Cited by 1 publication

(2 citation statements)

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“…An SHF BT45 broadband bias tee separated the detected dc voltage signal from the microwave signal. The high-frequency measurement setup is presented in Appendix B [ 40 ]. The usage of the probe stations made the investigation more simple and allowed for on-wafer experiments to be performed under varying illumination conditions and at different temperatures.…”

Section: Samples and Measurement Techniquesmentioning

confidence: 99%

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Competition between Direct Detection Mechanisms in Planar Bow-Tie Microwave Diodes on the Base of InAlAs/InGaAs/InAlAs Heterostructures

Sužiedėlis

Ašmontas

Gradauskas

et al. 2023

Sensors

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The application of the unique properties of terahertz radiation is increasingly needed in sensors, especially in those operating at room temperature without an external bias voltage. Bow-tie microwave diodes on the base of InGaAs semiconductor structures meet these requirements. These diodes operate on the basis of free-carrier heating in microwave electric fields, which allows for the use of such sensors in millimeter- and submillimeter-wavelength ranges. However, there still exists some uncertainty concerning the origin of the voltage detected across these diodes. This work provides a more detailed analysis of the detection mechanisms in InAlAs/InGaAs selectively doped bow-tie-shaped semiconductor structures. The influence of the InAs inserts in the InGaAs layer is investigated under various illumination and temperature conditions. A study of the voltage–power characteristics, the voltage sensitivity dependence on frequency in the Ka range, temperature dependence of the detected voltage and its relaxation characteristics lead to the conclusion that a photo-gradient electromotive force arises in bow-tie diodes under simultaneous light illumination and microwave radiation.

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Section: Samples and Measurement Techniquesmentioning

confidence: 99%

“…A structure block diagram of the probe station for the measurement of the detected voltage dependencies on microwave power and frequency in the K a frequency range [ 40 ].…”

Section: Figure A1mentioning

confidence: 99%