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相关概念视频

IR Spectrometers01:25

IR Spectrometers

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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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Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

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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...
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相关实验视频

Updated: Jul 4, 2025

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

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用于分散测量的干扰仪.

S E Harris1

  • 1Departments of Electrical Engineering and Applied Physics, Ginzton Laboratory, Stanford University, Stanford, California 94305, USA.

Physical review letters
|February 9, 2024
PubMed
概括
此摘要是机器生成的。

一种新的光学干扰仪使用宽带频率调制,使其对相位不敏感. 这允许在不需要短脉冲设备的情况下进行组速度和分散测量.

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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
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A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

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相关实验视频

Last Updated: Jul 4, 2025

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Implementation of a Reference Interferometer for Nanodetection

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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

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A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
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科学领域:

  • 光学是什么?光学是什么?光学是什么?
  • 干涉测量是干涉测量的方法.
  • 频谱学是一种光谱学.

背景情况:

  • 传统的光学干扰仪对光学相位移很敏感.
  • 测量群体速度和分散通常需要复杂的短脉冲设置.

研究的目的:

  • 提出一个新的光学干扰仪设计.
  • 为了使群体速度和分散的相位不敏感的测量.

主要方法:

  • 使用宽带频率调制.
  • 构建一种新型的光学干扰仪.

主要成果:

  • 拟议的干扰仪对光学相位不敏感.
  • 它允许测量群体速度.
  • 它可以测量群体速度分散.

结论:

  • 宽带频率调制为光学干扰测量提供了一种新的方法.
  • 这种方法简化了群体速度和分散的测量,不需要专门的短脉冲装置.