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Related Concept Videos

Infrared (IR) Spectroscopy: Overview01:09

Infrared (IR) Spectroscopy: Overview

When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
Different compounds display unique properties due to their...
IR Spectrometers01:25

IR Spectrometers

There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...

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Related Experiment Video

Updated: May 28, 2026

Fluorescence Lifetime Macro Imager for Biomedical Applications
06:01

Fluorescence Lifetime Macro Imager for Biomedical Applications

Published on: April 7, 2023

Monolithically integrated photon-mapping infrared imager.

Xingwei Han1,2, Jun Wang3, Lei Guo1

  • 1State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China.

Nature Communications
|May 26, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces a self-driven infrared imager, eliminating external power needs for enhanced portability and flexibility. This novel photon-mapping device offers high resolution and speed for advanced infrared visualization.

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Published on: December 1, 2016

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Last Updated: May 28, 2026

Fluorescence Lifetime Macro Imager for Biomedical Applications
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Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy (iPALM)
11:57

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy (iPALM)

Published on: December 1, 2016

Area of Science:

  • Photonics
  • Materials Science
  • Electrical Engineering

Background:

  • Conventional infrared imaging systems require external power, limiting their practical applications.
  • Existing systems face challenges in portability, flexibility, and large-area scalability.

Purpose of the Study:

  • To develop a self-driven, monolithically integrated near-infrared imager.
  • To overcome limitations of conventional infrared imaging systems regarding power, resolution, and speed.

Main Methods:

  • Vertical integration of photovoltage-generating light-sensing units with a light-emitting unit.
  • Cascaded configuration enabling visible emission upon near-infrared excitation via internal carrier transfer.
  • Circuit-free architecture for intrinsic flexibility and scalability.

Main Results:

  • Achieved a resolution of 5799 ppi and a frame rate of 18.5 kHz.
  • Demonstrated self-driven operation without external power supplies.
  • Enabled spatial resolution beyond conventional pixel limits and high-speed imaging.

Conclusions:

  • The developed imager offers a simplified, energy-efficient approach to infrared visualization.
  • The circuit-free, self-driven design enhances portability, flexibility, and scalability.
  • This technology paves the way for advanced, high-performance infrared imaging applications.