Deep-learning powered whispering gallery mode sensor based on multiplexed imaging at fixed frequency
Journal Title: Opto-Electronic Advances - Year 2020, Vol 3, Issue 11
Abstract
During the last decades the whispering gallery mode based sensors have become a prominent solution for label-free sensing of various physical and chemical parameters. At the same time, the widespread utilization of the approach is hindered by the restricted applicability of the known configurations for ambient variations quantification outside the laboratory conditions and their low affordability, where necessity on the spectrally-resolved data collection is among the main limiting factors. In this paper we demonstrate the first realization of an affordable whispering gallery mode sensor powered by deep learning and multi-resonator imaging at a fixed frequency. It has been shown that the approach enables refractive index unit (RIU) prediction with an absolute error at 3×10-6 level for dynamic range of the RIU variations from 0 to 2×10-3 with temporal resolution of several milliseconds and instrument-driven detection limit of 3×10−5. High sensing accuracy together with instrumental affordability and production simplicity places the reported detector among the most cost-effective realizations of the whispering gallery mode approach. The proposed solution is expected to have a great impact on the shift of the whole sensing paradigm away from the model-based and to the flexible self-learning solutions.
Authors and Affiliations
Anton V. Saetchnikov*, Elina A. Tcherniavskaia, Vladimir A. Saetchnikov, Andreas Ostendorf*
Keywords
Related Articles
- EP ID EP693132
- DOI 10.29026/oea.2020.200048
- Views 107
- Downloads 0
All-metallic wide-angle metasurfaces for multifunctional polarization manipulation
Optical camouflage is a magical capability of animals as first noticed in 1794 by Erasmus Darwin in Zoonomia, but current biomimetic camouflage strategies cannot be readily applied in complex environments involving multi...
Controlling plasmon-exciton interactions through photothermal reshaping
We investigated the plasmon-exciton interactions in an individual gold nanorod (GNR) with monolayer MoS2 at room temperature with the single-particle spectroscopy technique. To control the plasmon-exciton interaction, we...
True random coded photon counting Lidar
A true random coded photon counting Lidar system is proposed in this paper, in which a single photon detector acts as the true random sequence signal generator instead of the traditional function generator. Compared with...
Ionization behavior and dynamics of picosecond laser filamentation in sapphire
Currently, laser-induced structural modifications in optical materials have been an active field of research. In this paper, we reported structural modifications in the bulk of sapphire due to picosecond (ps) laser filam...
Perfect electromagnetic and sound absorption via subwavelength holes array
Broadband sound absorption at low frequency is notoriously difficult because the thickness of the absorber should be proportional to the working wavelength. Here we report an acoustic metasurface absorber following the r...