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Related Experiment Video

Updated: Jun 5, 2025

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

Compact meta-spectral image sensor for mobile applications.

Jaesoong Lee¹, Yeonsang Park², Hyochul Kim¹

¹Photonic Device Lab., Samsung Advanced Institute of Technology, 130 Samsung-ro, 16678, Suwon, Korea.

Nanophotonics (Berlin, Germany)

|December 5, 2024

Summary

This summary is machine-generated.

We developed a compact metasurface spectral imager for near-infrared applications. This innovative device offers high efficiency and spectral resolution, enabling smartphone integration for diverse uses.

Keywords:

CMOS imager sensor compact spectral imager hyperspectral imaging metasurfaces

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Last Updated: Jun 5, 2025

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

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Published on: June 23, 2018

A Guide to Structured Illumination TIRF Microscopy at High Speed with Multiple Colors

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

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Published on: November 21, 2019

Area of Science:

Optics and Photonics
Materials Science
Nanotechnology

Background:

Traditional spectral imagers are often bulky and complex.
Miniaturization is crucial for portable sensing applications.
Metasurfaces offer novel ways to control light at the nanoscale.

Purpose of the Study:

To demonstrate a compact and efficient metasurface-based spectral imager.
To achieve high spectral resolution in the near-infrared range.
To explore simplified fabrication methods for spectral imaging devices.

Main Methods:

Fabrication of dielectric multilayer filters directly on a CMOS image sensor.
Embedding silicon (Si) nanopost arrays within multilayers to select transmission wavelengths.
Utilizing metasurface principles for wavelength-specific light manipulation.

Main Results:

Achieved a compact and efficient spectral imager operating in the near-infrared (NIR) range.
Demonstrated excellent spectral resolution up to 2.0 nm.
Successfully measured LED emission spectra and obtained hyperspectral images.
Showcased ease of fabrication, miniaturization, low crosstalk, and high transmission.

Conclusions:

The metasurface approach simplifies spectral imager fabrication and enhances performance.
The developed imager offers high spectral resolution and efficiency for NIR applications.
This technology holds potential for integrating compact spectral imagers into smartphones.