J. Andres Aguilera Ramos, Brhayllan M. Ventura, Fco. Javier Gonzalez, Robert E. Peale, Saiful I. Khondaker, Gabriel González
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Analysis of photothermal heating of microhole bowtie antennas on gold metal films
In this work, we present a numerical and experimental study of the photothermal heating of microholes array (MHA) bowtie antennas on gold metal films. The article first shows how MHAs in gold metal films can absorb more heat depending on the geometry or placement of the MHA in each gold metal films. We show numerically and experimentally that the photothermal heating exhibits a maximum when the MHAs are patterned in a bowtie-like geometry. Numerical studies were carried out by using COMSOL multiphysics and experimental results were obtained using thermal imaging microscopy for several different MHAs geometries, respectively. Our results showed a good agreement between experimental data and the numerical simulations, validating that MHAs bowtie antennas on gold metal films heat significantly more and make them ideal for use in photothermal applications.
期刊介绍：
Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas.
- RF, Microwave, and Millimeter Waves
- Antennas and Propagation
- Submillimeter-Wave and Infrared Technology
- Optical Engineering
All papers are subject to peer review before publication
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