Thermal crosstalk simulation and measurement of linear terahertz detector arrays

Weizhi Li; Zehua Huang; Jun Wang; Mingyu Li; Jun Gou; Yadong Jiang

doi:10.1016/j.infrared.2015.09.002

Thermal crosstalk simulation and measurement of linear terahertz detector arrays

Weizhi Li^*, Zehua Huang, Jun Wang, Mingyu Li, Jun Gou, Yadong Jiang

^*Corresponding author for this work

School of Mechatronical Engineering

University of Electronic Science and Technology of China

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

6 Citations (Scopus)

Abstract

Thermal simulation of differently structured linear terahertz detector arrays (TDAs) based on lithium tantalate was performed by finite element analysis (FEA). Simulation results revealed that a relatively simple TDA structure can have good thermal insulation, i.e., low thermal crosstalk effect (TCE), between adjacent pixels, which was thus selected for the real fabrication of TDA sample. Current responsivity (R_i) of the sample for a 2.52 THz source was measured to be 6.66 × 10^-6 A/W and non-uniformity (NU) of R_i was 4.1%, showing good performance of the sample. TCE test result demonstrated that small TCE existed in the sample, which was in good agreement with the simulation results.

Original language	English
Pages (from-to)	73-77
Number of pages	5
Journal	Infrared Physics and Technology
Volume	73
DOIs	https://doi.org/10.1016/j.infrared.2015.09.002
Publication status	Published - 1 Nov 2015

Keywords

Current responsivity
Finite element analysis
Terahertz detector
Thermal crosstalk effect

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10.1016/j.infrared.2015.09.002

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title = "Thermal crosstalk simulation and measurement of linear terahertz detector arrays",

abstract = "Thermal simulation of differently structured linear terahertz detector arrays (TDAs) based on lithium tantalate was performed by finite element analysis (FEA). Simulation results revealed that a relatively simple TDA structure can have good thermal insulation, i.e., low thermal crosstalk effect (TCE), between adjacent pixels, which was thus selected for the real fabrication of TDA sample. Current responsivity (Ri) of the sample for a 2.52 THz source was measured to be 6.66 × 10-6 A/W and non-uniformity (NU) of Ri was 4.1\%, showing good performance of the sample. TCE test result demonstrated that small TCE existed in the sample, which was in good agreement with the simulation results.",

keywords = "Current responsivity, Finite element analysis, Terahertz detector, Thermal crosstalk effect",

author = "Weizhi Li and Zehua Huang and Jun Wang and Mingyu Li and Jun Gou and Yadong Jiang",

year = "2015",

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doi = "10.1016/j.infrared.2015.09.002",

language = "English",

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TY - JOUR

T1 - Thermal crosstalk simulation and measurement of linear terahertz detector arrays

AU - Li, Weizhi

AU - Huang, Zehua

AU - Wang, Jun

AU - Li, Mingyu

AU - Gou, Jun

AU - Jiang, Yadong

PY - 2015/11/1

Y1 - 2015/11/1

N2 - Thermal simulation of differently structured linear terahertz detector arrays (TDAs) based on lithium tantalate was performed by finite element analysis (FEA). Simulation results revealed that a relatively simple TDA structure can have good thermal insulation, i.e., low thermal crosstalk effect (TCE), between adjacent pixels, which was thus selected for the real fabrication of TDA sample. Current responsivity (Ri) of the sample for a 2.52 THz source was measured to be 6.66 × 10-6 A/W and non-uniformity (NU) of Ri was 4.1%, showing good performance of the sample. TCE test result demonstrated that small TCE existed in the sample, which was in good agreement with the simulation results.

AB - Thermal simulation of differently structured linear terahertz detector arrays (TDAs) based on lithium tantalate was performed by finite element analysis (FEA). Simulation results revealed that a relatively simple TDA structure can have good thermal insulation, i.e., low thermal crosstalk effect (TCE), between adjacent pixels, which was thus selected for the real fabrication of TDA sample. Current responsivity (Ri) of the sample for a 2.52 THz source was measured to be 6.66 × 10-6 A/W and non-uniformity (NU) of Ri was 4.1%, showing good performance of the sample. TCE test result demonstrated that small TCE existed in the sample, which was in good agreement with the simulation results.

KW - Current responsivity

KW - Finite element analysis

KW - Terahertz detector

KW - Thermal crosstalk effect

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U2 - 10.1016/j.infrared.2015.09.002

DO - 10.1016/j.infrared.2015.09.002

M3 - Article

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SN - 1350-4495

VL - 73

SP - 73

EP - 77

JO - Infrared Physics and Technology

JF - Infrared Physics and Technology

ER -

Thermal crosstalk simulation and measurement of linear terahertz detector arrays

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Keywords

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