High-throughput speckle spectrometers based on multifractal scattering media

Bibliographic Details
Title: High-throughput speckle spectrometers based on multifractal scattering media
Authors: Kumar, Bhupesh, Zhu, Yilin, Negro, Luca Dal, Schulz, Sebastian A.
Publication Year: 2023
Collection: Physics (Other)
Subject Terms: Physics - Optics
More Details: We present compact integrated speckle spectrometers based on monofractal and multifractal scattering media in a silicon-on-insulator platform. Through both numerical and experimental studies we demonstrate enhanced optical throughput, and hence signal-to-noise ratio, for a number of random structures with tailored multifractal geometries without affecting the spectral decay of the speckle correlation functions. Moreover, we show that the developed multifractal media outperform traditional scattering spectrometers based on uniform random distributions of scattering centers. Our findings establish the potential of low-density random media with multifractal correlations for integrated on-chip applications beyond what is possible with uncorrelated random disorder.
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2311.02796
Accession Number: edsarx.2311.02796
Database: arXiv
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