Compressive Raman microspectroscopy parallelized by single-photon avalanche diode arrays

TL;DR

This paper introduces a scalable compressive Raman microspectroscopy method using SPAD arrays, achieving over tenfold speed-up by parallelizing the process and significantly reducing pixel dwell times.

Contribution

The work presents a novel parallelization scheme for Raman microspectroscopy utilizing SPAD arrays, enabling faster data acquisition compared to traditional methods.

Findings

Achieved pixel dwell times of 23 microseconds.

Realized over 10 times speed-up in Raman data collection.

Demonstrated scalable and efficient Raman imaging.

Abstract

We demonstrate an efficient and scalable compressive Raman parallelization scheme based on single-photon avalanche diode (SPAD) arrays to reach pixel dwell times of 23 $\mu$s, representing over 10$\times$ speed-up using the otherwise weak spontaneous Raman effect.