Polarization-Dependent Response of Single- and Bi-Metal Antenna-Coupled Thermopiles for Infrared Detection

Author

Szakmany, Gergo P. ; Orlov, Alexei O. ; Bernstein, Gary H. ; Porod, Wolfgang

Author_Institution

Dept. of Electr. Eng., Univ. of Notre Dame, Notre Dame, IN, USA

Volume

5

Issue

6

fYear

2015

Firstpage

884

Lastpage

891

Abstract

Antenna-coupled single- and bi-metal nanothermocouples (ACNTCs) and thermopiles for IR detection are fabricated and tested. These devices comprise a dipole antenna and a nanoscale thermocouple with lead lines. Polarization-dependent responses of antenna-coupled thermopiles with various array sizes are investigated. The polarization ratios of the various ACNTC designs are found to be significantly different. We show that the NTC lead lines act as parasitic antennas, and discuss the implications of design parameter choices.

Keywords

dipole antenna arrays; electromagnetic wave polarisation; infrared detectors; nanosensors; thermocouples; thermopiles; ACNTC; IR detection; NTC lead line; bimetal antenna coupled thermopile; dipole antenna; infrared detection; nanoscale thermocouple; polarization-dependent response; single metal antenna-coupled thermopile; Antenna measurements; Dipole antennas; Junctions; Lead; Temperature measurement; Voltage measurement; Nanoantenna; terahertz (THz) detector; thermocouple;

fLanguage

English

Journal_Title

Terahertz Science and Technology, IEEE Transactions on

Publisher

ieee

ISSN

2156-342X

Type

jour

DOI

10.1109/TTHZ.2015.2479220

Filename

7293696