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Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

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Related Experiment Video

Updated: Jun 17, 2026

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

New developments in multiplier phototubes for space research.

M Rome1

  • 1Electro-Mechanical Research, Inc., Princeton,New Jersey, USA.

Applied Optics
|January 6, 2010
PubMed
Summary

Ruggedized multiplier phototubes offer high performance for UV and visible light detection. New photocathodes achieve high quantum efficiencies, with options for solar-blind or broad-band sensitivity.

Area of Science:

  • Photonics and Optoelectronics
  • Applied Physics

Background:

  • Advancements in photodetector technology are crucial for sensitive light measurement.
  • Ruggedized multiplier phototubes are essential for demanding applications in UV and visible spectroscopy.

Purpose of the Study:

  • To describe recent developments in ruggedized high-performance multiplier phototubes.
  • To detail the spectral radiant responses and characteristics of new photocathode materials.

Main Methods:

  • Characterization of spectral radiant responses for photocathodes.
  • Evaluation of photoemissive surfaces with selective and broad-band sensitivities.
  • Review of dark current, amplification, noise input, and environmental performance.

Main Results:

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Related Experiment Videos

Last Updated: Jun 17, 2026

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers
10:07

Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers

Published on: April 9, 2014

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
06:25

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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  • Peak quantum efficiencies exceeding 30% achieved.
  • Development of extreme solar-blind cathodes for far UV detection.
  • Broad-band sensitivity cathodes developed for wide spectral ranges.
  • Comprehensive review of phototube characteristics including dark current and noise.

Conclusions:

  • New ruggedized multiplier phototubes offer enhanced performance for UV and visible light detection.
  • The described photocathodes provide versatile spectral response options for various scientific applications.
  • These developments advance the capabilities of photodetectors in challenging environments.