abstract

• Nanoantennas coupled to nanobolometers have been used as detectors of optical radiation. They are typically manufactured using two different materials: one for the nanoantenna and another for the nanobolometer. However, those metals used to fabricate nanoantennas also present a bolometric response. Therefore, antenna-coupled detectors using the bolometric effect distributed along the device were compared with the results previously reported for nanobolometers coupled with dipole antennas in the infrared regime. We modeled the relevant physical mechanisms and also simulated the simple case of a dipole antenna using a multi-physics computational tool. The simulation results were compared with experimental results. The advantage in performance when using a dedicated material to enhance the bolometric effect, is balanced with the easiness of the fabrication of resonant structures involving only one material where the bolometric effect is distributed along the device. © 2012 Society of Photo-Optical Instrumentation Engineers.

authors

• Alda J.
• Cuadrado A.
• González Contreras Francisco Javier

publication date

• 2012-01-01

funding provided via

• Universidad Complutense de Madrid, UCM  Grant

published in

• Journal of Nanophotonics  Journal

keywords

• bolometers; infrared detectors; optical antennas Bolometers; Dipole antennas; Infrared detectors; Optical instruments; Antenna coupled detectors; Bolometric response; Computational tools; Multi-physics; Optical antennas; Optical radiations; Physical mechanism; Resonant structures; Nanoantennas

Digital Object Identifier (DOI)

• 10.1117/1.JNP.6.063512

start page

end page

volume

• 6

issue

• 1