RT Journal Article
T1 Detectivity comparison of bolometric optical antennas
A1 Cuadrado, Alexander
A1 López-Alonso, José Manuel
A1 Martínez Antón, Juan Carlos
A1 Ezquerro Rodríguez, José Miguel
A1 González, Francisco Javier
A1 Alda, Javier
AB The practical application of optical antennas in detection devices strongly depends on its ability to produce an acceptable signal-to-noise ratio for the given task. It is known that, due to the intrinsic problems arising from its sub-wavelength dimensions, optical antennas produce very small signals. The quality of these signals depends on the involved transduction mechanism. The contribution of different types of noise should be adapted to the transducer and to the signal extraction regime. Once noise is evaluated and measured, the specific detectivity, D*, becomes the parameter of interest when comparing the performance of antenna coupled devices with other detectors. However, this parameter involves some magnitudes that can be defined in several ways for optical antennas. In this contribution we are interested in the evaluation and comparison of D_ values for several bolometric optical antennas working in the infrared and involving two materials. At the same time, some material and geometrical parameters involved in the definition of noise and detectivity will be discussed to analyze the suitability of D_ to properly account for the performance of optical antennas.
PB SPIE
SN 0277-786X
YR 2015
FD 2015-08-28
LK https://hdl.handle.net/20.500.14352/24501
UL https://hdl.handle.net/20.500.14352/24501
LA eng
NO ISBN: 978-162841713-5CODEN: PSISDCopyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
NO Ministerio de Economia y Competitividad (MINECO)
NO Centro Mexicano de Innovación en Energía Solar from Fondo Sectorial CONACYT-Secretaría de EnergíaSustentabilidad Energética
NO National Laboratory program from CONACYT through the Terahertz Science and Technology National Lab (LANCYTT)
DS Docta Complutense
RD 8 abr 2025