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Related Experiment Video

Updated: Jan 28, 2026

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

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Compact snapshot optically replicating and remapping imaging spectrometer (ORRIS) using a focal plane continuous

Tingkui Mu, Feng Han, Donghao Bao

|March 2, 2019

Summary

This summary is machine-generated.

A new snapshot spectral imaging technique uses a lenslet array and continuous variable filter to capture 3D spectral data. This compact, low-cost system achieves 400x400 pixel resolution across 380-860 nm.

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Area of Science:

Optics and Photonics
Imaging Science
Spectroscopy

Background:

Traditional spectral imaging techniques can be complex and costly.
There is a need for compact, efficient spectral imaging systems.

Purpose of the Study:

To present a novel snapshot spectral imaging technique.
To demonstrate a compact and cost-effective proof-of-principle prototype.

Main Methods:

The technique combines a lenslet array (LA) for subimage shifting with a focal plane continuous variable filter (CVF) for spectral filtering.
A simple image remapping process recovers the 3D spectral data (datacube).

Main Results:

A handheld prototype was successfully built and demonstrated.
The system covers a wavelength range of 380-860 nm with 80 spectral channels.
Achieved spatial resolution of 400x400 pixels.

Conclusions:

The presented technique offers a compact and low-cost solution for snapshot spectral imaging.
The developed prototype validates the feasibility of the approach for various applications.