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A Pearl Spectrometer
- Source :
- Nano Letters. 21:921-930
- Publication Year :
- 2020
- Publisher :
- American Chemical Society (ACS), 2020.
-
Abstract
- Information recovery from incomplete measurements, typically performed by a numerical means, is beneficial in a variety of classical and quantum signal processing. Random and sparse sampling with nanophotonic and light scattering approaches has received attention to overcome the hardware limitations of conventional spectrometers and hyperspectral imagers but requires high-precision nanofabrications and bulky media. We report a simple spectral information processing scheme in which light transport through an Anderson-localized medium serves as an entropy source for compressive sampling directly in the frequency domain. As implied by the "lustrous" reflection originating from the exquisite multilayered nanostructures, a pearl (or mother-of-pearl) allows us to exploit the spatial and spectral intensity fluctuations originating from strong light localization for extracting salient spectral information with a compact and thin form factor. Pearl-inspired light localization in low-dimensional structures can offer an alternative of spectral information processing by hybridizing digital and physical properties at a material level.
- Subjects :
- Physics
Signal processing
Spectrometer
business.industry
Mechanical Engineering
Nanophotonics
Hyperspectral imaging
Bioengineering
02 engineering and technology
General Chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Light scattering
Physical Phenomena
Compressed sensing
Optics
Frequency domain
General Materials Science
0210 nano-technology
business
Quantum
Subjects
Details
- ISSN :
- 15306992 and 15306984
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Nano Letters
- Accession number :
- edsair.doi.dedup.....89e5018bcb7092e9dc2d0dd76cb185ff