Electromagnetic microwave generation by acoustic vibrations gives rise to nanoradiophotonics

M A Shevchenko,S F Umanskaya,N V Tcherniega,A D Kudryavtseva,M A Karpov,D V Rozinskii

doi:10.1038/s41598-021-87389-3

M A Shevchenko, S F Umanskaya + Show 4 more

Open Access

https://doi.org/10.1038/s41598-021-87389-3

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Abstract

The development of new methods for generating pulsed electromagnetic microwave radiation is currently an actively developing area of research. Schemes for microwave radiation generation with optical pumping are of great interest. In this paper we propose and experimentally demonstrate principally new method for photonic generation of microwave electromagnetic radiation. This method is based on the use of radiation of charged submicron particles oscillating at their own acoustic frequency. Laser radiation of the optical range implements an effective buildup of acoustic vibrations of submicron particles forming the system under study, according to the Raman mechanism.

Highlights

The development of new methods for generating pulsed electromagnetic microwave radiation is currently an actively developing area of research
stimulated low-frequency Raman scattering (SLFRS) spectra were registered by Fabry–Perot interferometers with different base which gave possibility to change the range of dispersion from 5 to 30 GHz
It should be noted that for the first time microwave radiation was generated in synthetic opal matrix via optical pumping

Summary

Introduction

The development of new methods for generating pulsed electromagnetic microwave radiation is currently an actively developing area of research. In this paper we propose and experimentally demonstrate principally new method for photonic generation of microwave electromagnetic radiation This method is based on the use of radiation of charged submicron particles oscillating at their own acoustic frequency. The voids between quartz spheres in opal matrices are octahedral and tetrahedral in shape By filling these cavities with liquids with different refractive indices, one can control the parameters of the photonic band gap (its position in the spectrum and contrast) and increase the efficiency of nonlinear processes due to a change in the density of photon states near the edge of the band gap[14,15]

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