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Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...

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関連する実験動画

Updated: Jun 30, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

12.5K

分散型ファイバーセンシング用レーザーシステムの実現に向けて

Luc Thévenaz1

  • 1EPFL - Ecole Polytechnique Fédérale de Lausanne, Institute of Electrical and Micro Engineering, Station 11, 1015, Lausanne, Switzerland. luc.thevenaz@epfl.ch.

Light, science & applications
|February 24, 2026
PubMed
まとめ
この要約は機械生成です。

新しいファイバーセンシング方法は、ファイバー自体をレーザー共振器として使用する。これにより、高度なセンシングアプリケーションの測定精度と速度が向上する。

さらに関連する動画

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
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Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

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関連する実験動画

Last Updated: Jun 30, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

12.5K
Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
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Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

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背景:

  • Distributed fiber sensing is crucial for various applications.
  • Traditional methods face limitations in accuracy and speed.

研究 の 目的:

  • Introduce a novel distributed fiber sensing concept.
  • Enhance measurement accuracy and acquisition speed.

主な方法:

  • Utilizing the sensing fiber as a laser cavity.
  • Developing a position-independent sensing configuration.

主要な成果:

  • Achieved high-quality sensing response.
  • Demonstrated position independence of the response.
  • Showcased enhanced measurement accuracy and acquisition speed.

結論:

  • The proposed fiber laser cavity sensing offers superior performance.
  • This technology opens new possibilities for advanced distributed sensing.