RT Journal Article
T1 All-optical nanosensor for displacement detection in mechanical applications
A1 Escandell Varela, Lorena
A1 Rodríguez Álvarez, Carlos
A1 Barreda, Ángela
A1 Zaera, Ramón
A1 García Cámara, Braulio
AB In this paper, we propose the design of an optical system based on two parallel suspended silicon nanowires that support a range of optical resonances that efficiently confine and scatter light in the infrared range as the base of an all-optical displacement sensor. The effects of the variation of the distance between the nanowires are analyzed. The simulation models are designed by COMSOL Multiphysics software, which is based on the finite element method. The diameter of the nanocylinders (d = 140 nm) was previously optimized to achieve resonances at the operating wavelengths (lambda = 1064 nm and 1310 nm). The results pointed out that a detectable change in their resonant behavior and optical interaction was achieved. The proposed design aims to use a simple light source using a commercial diode laser and simplify the readout systems with a high sensitivity of 1.1 × 106 V/m2 and 1.14 × 106 V/m2 at 1064 nm and 1310 nm, respectively. The results may provide an opportunity to investigate alternative designs of displacement sensors from an all-optical approach and explore their potential use.
PB MDPI
SN 2079-4991
YR 2022
FD 2022-11-02
LK https://hdl.handle.net/10016/36992
UL https://hdl.handle.net/10016/36992
LA eng
NO This article belongs to the Topic Advanced Nanomaterials for Sensing Applications.
NO This work was funded by the Spanish Research Agency (AEI), PID2019-109072RB-C31/AEI/10.13039/501100011033, Comunidad de Madrid by SINFOTON2-CM (grant number S2018/NMT-4326). These grants are also co-founded by the European Fund for Regional Development. This work was also funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through the International Research Training Group (IRTG) 2675 "Meta-ACTIVE," project number 437527638. This work has been supported by the Madrid Government (Comunidad de Madrid-Spain) under the Multiannual Agreement with UC3M in the line of Excellence of University Professors (EPUC3M26), and in the context of the V PRICIT (Regional Programme of Research and Technological Innovation).
DS e-Archivo
RD 30 jun. 2024