Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Snapshot multispectral imaging using a diffractive optical network

Journal Article · · Light, Science & Applications

Abstract

Multispectral imaging has been used for numerous applications in e.g., environmental monitoring, aerospace, defense, and biomedicine. Here, we present a diffractive optical network-based multispectral imaging system trained using deep learning to create a virtual spectral filter array at the output image field-of-view. This diffractive multispectral imager performs spatially-coherent imaging over a large spectrum, and at the same time, routes a pre-determined set of spectral channels onto an array of pixels at the output plane, converting a monochrome focal-plane array or image sensor into a multispectral imaging device without any spectral filters or image recovery algorithms. Furthermore, the spectral responsivity of this diffractive multispectral imager is not sensitive to input polarization states. Through numerical simulations, we present different diffractive network designs that achieve snapshot multispectral imaging with 4, 9 and 16 unique spectral bands within the visible spectrum, based on passive spatially-structured diffractive surfaces, with a compact design that axially spans ~72 λ m , where λ m is the mean wavelength of the spectral band of interest. Moreover, we experimentally demonstrate a diffractive multispectral imager based on a 3D-printed diffractive network that creates at its output image plane a spatially repeating virtual spectral filter array with 2 × 2 = 4 unique bands at terahertz spectrum. Due to their compact form factor and computation-free, power-efficient and polarization-insensitive forward operation, diffractive multispectral imagers can be transformative for various imaging and sensing applications and be used at different parts of the electromagnetic spectrum where high-density and wide-area multispectral pixel arrays are not widely available.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NONE; SC0023088
OSTI ID:
1968626
Alternate ID(s):
OSTI ID: 2341449
OSTI ID: 1968397
OSTI ID: 1991469
Journal Information:
Light, Science & Applications, Journal Name: Light, Science & Applications Journal Issue: 1 Vol. 12; ISSN 2047-7538
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (63)

Periodic Dielectric Metasurfaces with High-Efficiency, Multiwavelength Functionalities journal October 2017
All‐Optical Phase Recovery: Diffractive Computing for Quantitative Phase Imaging journal May 2022
Perfect RGB‐IR Color Routers for Sub‐Wavelength Size CMOS Image Sensor Pixels journal January 2021
Multispectral imaging in biology and medicine: Slices of life journal January 2006
Calibration of Space-Multispectral Imaging Sensors journal June 1999
Reflection-optical multispectral imaging method for objective determination of burn depth journal December 1999
Hyperspectral imaging and multispectral imaging as the novel techniques for detecting defects in raw and processed meat products: Current state-of-the-art research advances journal February 2018
Hyperspectral and multispectral imaging for evaluating food safety and quality journal September 2013
Multispectral imaging of hematopoietic cells: Where flow meets morphology journal July 2008
Multispectral imaging contributions to global land ice measurements from space journal November 2005
Multispectral imaging – a new tool in seed quality assessment? journal June 2018
GaN Metalens for Pixel-Level Full-Color Routing at Visible Light journal September 2017
Single-Layer Bayer Metasurface via Inverse Design journal August 2022
High-Sensitivity Color Imaging Using Pixel-Scale Color Splitters Based on Dielectric Metasurfaces journal March 2019
A bimetallic nanoantenna for directional colour routing journal September 2011
Efficient colour splitters for high-pixel-density image sensors journal February 2013
All-optical information-processing capacity of diffractive surfaces journal January 2021
Nanoprinted high-neuron-density optical linear perceptrons performing near-infrared inference on a CMOS chip journal March 2021
All-optical synthesis of an arbitrary linear transformation using diffractive surfaces journal September 2021
Polarization multiplexed diffractive computing: all-optical implementation of a group of linear transformations through a polarization-encoded diffractive network journal May 2022
Terahertz pulse shaping using diffractive surfaces journal January 2021
Pixel-level Bayer-type colour router based on metasurfaces journal June 2022
Inference in artificial intelligence with deep optics and photonics journal December 2020
Machine learning and computation-enabled intelligent sensor design journal June 2021
Encoded diffractive optics for full-spectrum computational imaging journal September 2016
Full-color nanorouter for high-resolution imaging journal January 2021
3D: The next generation near-infrared imaging spectrometer journal November 1996
Real-time imaging with a hyperspectral fovea journal May 2005
Low-cost multispectral imaging system for crop monitoring conference June 2018
A novel 3D multispectral vision system based on filter wheel cameras conference October 2016
Analysis of Diffractive Optical Neural Networks and Their Integration With Electronic Neural Networks journal January 2020
Hypersectral Imaging for Military and Security Applications: Combining Myriad Processing and Sensing Techniques journal June 2019
Multispectral imaging of paintings journal July 2008
Colored Coded Aperture Design by Concentration of Measure in Compressive Spectral Imaging journal April 2014
Massively parallel universal linear transformations using a wavelength-multiplexed diffractive optical network journal January 2023
Spectrally encoded single-pixel machine vision using diffractive networks journal March 2021
Pancam Multispectral Imaging Results from the Opportunity Rover at Meridiani Planum journal December 2004
All-optical machine learning using diffractive deep neural networks journal July 2018
Analysis of multispectral imaging with the AstroPath platform informs efficacy of PD-1 blockade journal June 2021
Spatial-spectral encoded compressive hyperspectral imaging journal November 2014
Compact snapshot hyperspectral imaging with diffracted rotation journal July 2019
Identification of pigments by multispectral imaging; a flowchart method journal January 2014
Computational imaging without a computer: seeing through random diffusers at the speed of light journal January 2022
To image, or not to image: class-specific diffractive cameras with all-optical erasure of undesired objects journal August 2022
Single disperser design for coded aperture snapshot spectral imaging journal January 2008
Multispectral camera and radiative transfer equation used to depict Leonardo's sfumato in Mona Lisa journal April 2008
Compressive hyperspectral imaging by random separable projections in both the spatial and the spectral domains journal March 2013
Free-space beam propagation between arbitrarily oriented planes based on full diffraction theory: a fast Fourier transform approach journal January 1998
Fast calculation method for optical diffraction on tilted planes by use of the angular spectrum of plane waves journal January 2003
Snapshot colored compressive spectral imager journal September 2015
RGB-NIR multispectral camera journal February 2014
Multispectral imaging with a confocal microendoscope journal December 2000
Development of a digital-micromirror-device-based multishot snapshot spectral imaging system journal July 2011
Dual-coded compressive hyperspectral imaging journal March 2014
Ultra-high-sensitivity color imaging via a transparent diffractive-filter array and computational optics journal January 2015
Multifunctional volumetric meta-optics for color and polarization image sensors journal January 2020
Learned rotationally symmetric diffractive achromat for full-spectrum computational imaging journal August 2020
Shift-variant color-coded diffractive spectral imaging system journal November 2021
Misalignment resilient diffractive optical networks journal July 2020
Diffractive interconnects: all-optical permutation operation using diffractive networks journal September 2022
Multispectral imaging and pathology: seeing and doing more journal September 2008
In-Vivo and Ex-Vivo Tissue Analysis through Hyperspectral Imaging Techniques: Revealing the Invisible Features of Cancer journal May 2019
Use of Hyperspectral/Multispectral Imaging in Gastroenterology. Shedding Some–Different–Light into the Dark journal January 2019

Similar Records

Related Subjects