Bulletin of ANPA

Abstract submitted to ANPA Conference July 14–16, 2023

Volume 5, Number 1

Atomic, Molecular, Optical and Plasma Physics

Abstract ID: ANPA2023-N00023

Abstract:

ANPA2023-N00023: Design and Fabrication of Dipole Coupled Microbolometer as Infrared Sensor

Authors:

• Bhanu Ghimire; University of North Carolina at Charlotte

Dipole coupled microbolometer uses planar lithographic antennas to couple infrared radiation into the feed line. In this research, irradiance values at the dipole arm have been studies for direct incidence and using reflector behind substrate. Bolometer has been fabricated by sputtering process to measure electrical property and detectivity of infrared antenna. A new method to calculate the radiation efficiency based on the spatial and angular response of infrared antennas is presented and used to evaluate their performance. We have observed Fresnel losses in the system of around 12% due to reflection, absorption and transmission and concentration ratio ranges from 60 to 85 at the feed point. A dipole radiation pattern was studied for fixed length of 7.5 micrometer for operating wavelength 28.3 THz. The observed radiation pattern shows main lobe and side bands indicating capability of antenna for multiple communication.

To cite this abstract, use the following reference: https://anpaglobal.org/conference/2023/ANPA2023-N00023