Nanoscale optical parametric amplification through super-nonlinearity induction

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2022-08-01

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Aşırım, Özüm Emre
Kuzuoğlu, Mustafa

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Optical parametric amplification (OPA) is a nonlinear process through which a low-power input wave is amplified by extracting energy from an interaction medium that is energized by a high-intensity pump wave. For a significant amplification of an input wave, a sufficiently long interaction medium is required, which is usually on the order of a few centimeters. Therefore, in the small scale, OPA is considered unfeasible, and this prevents it from being employed in micro and nanoscale devices. There have been recent studies that proposed microscale OPA through the use of micro-resonators. However, there is currently no study that has suggested high-gain nanoscale OPA, which could be quite useful for implementing nanoscale optical devices. This study aims to show that nanoscale OPA is feasible through the concurrent maximization of the pump wave induced electric energy density and the polarization density (nonlinear coupling strength) within the interaction medium, which enables a very high amount of energy to be transferred to the input wave that is sufficient to amplify the input wave with a gain factor that is comparable to those provided by centimeter scale nonlinear crystals. The computational results of our OPA model match with the experimental ones in the context of sum-harmonic generation, which is the wave-mixing process that gives rise to OPA, with an accuracy of 97.6%. The study aims to make room for further investigation of nanoscale OPA through adaptive optics and/or nonlinear programming algorithms for the enhancement of the process.

Subject Keywords

High energy density, Nanoscale, Nonlinear optics, Optical parametric amplification

URI

https://hdl.handle.net/11511/98528

Journal

Applied Nanoscience (Switzerland)

DOI

https://doi.org/10.1007/s13204-022-02527-1

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

Ö. E. Aşırım and M. Kuzuoğlu, “Nanoscale optical parametric amplification through super-nonlinearity induction,” Applied Nanoscience (Switzerland), vol. 12, no. 8, pp. 2429–2441, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/98528.