Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

IR Spectrometers

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...

Tandem Mass Spectrometry

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...

Raman Spectroscopy Instrumentation: Overview

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...

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
According to Hooke's law, the vibrational frequency is directly proportional to the...

IR Spectroscopy: Molecular Vibration Overview

IR Spectroscopy: Molecular Vibration Overview

When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...

Discrete Fourier Transform

Discrete Fourier Transform

The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Interprofessional simulation-based team-training and self-efficacy in emergency medicine situations.

Journal of interprofessional care·2022

Same author

Transient suppression of ovulatory ovarian function in pony mares after treatment with slow-release deslorelin implants.

Domestic animal endocrinology·2020

Same author

2D:4D and spatial abilities: From rats to humans.

Neurobiology of learning and memory·2018

Same author

Maternal Lineage of Warmblood Mares Contributes to Variation of Gestation Length and Bias of Foal Sex Ratio.

PloS one·2015

Same author

The role of rapid eye movement sleep for amygdala-related memory processing.

Neurobiology of learning and memory·2015

Same author

Sleep timing is more important than sleep length or quality for medical school performance.

Chronobiology international·2013

Search research articles

Related Experiment Video

Updated: Jun 15, 2026

A Multimodal Wide-Field Fourier-Transform Raman Microscope

A Multimodal Wide-Field Fourier-Transform Raman Microscope

Published on: December 30, 2025

Tilt-compensated Michelson interferometer for Fourier transform spectroscopy.

L Genzel, J Kuhl

|March 6, 2010

Summary

A novel Michelson interferometer design offers inherent tilt compensation for all mirrors. This innovative design ensures image stability on the detector, even with movable mirror adjustments, simplifying optical path difference analysis.

Area of Science:

Optics and Photonics
Interferometry
Optical Engineering

Background:

Michelson interferometers are crucial for precise measurements but sensitive to mirror tilts.
Existing designs often require complex alignment procedures to mitigate tilt-induced errors.
Image shift on the detector complicates data analysis in conventional interferometers.

Purpose of the Study:

To introduce a new Michelson interferometer design with intrinsic tilt compensation.
To demonstrate the elimination of image shift caused by movable mirror staggering.
To analyze the impact of minor tilts on optical path difference in the new design.

Main Methods:

Construction of a Michelson interferometer using only spherical and plane mirrors.
Implementation of a staggering mechanism for the movable mirror.

More Related Videos

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Published on: June 27, 2014

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Related Experiment Videos

Last Updated: Jun 15, 2026

A Multimodal Wide-Field Fourier-Transform Raman Microscope

A Multimodal Wide-Field Fourier-Transform Raman Microscope

Published on: December 30, 2025

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Published on: June 27, 2014

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Experimental validation using a near-infrared (near-IR) light source.

Acquisition and analysis of interferograms.

Main Results:

The new interferometer design inherently compensates for mirror tilts.
Staggering the movable mirror produced no shift in the detected images from either arm.
Experimental interferograms confirmed the stability and performance of the device.
Analysis quantified the influence of small tilts on optical path difference.

Conclusions:

The developed Michelson interferometer offers superior image stability and robustness against mirror tilts.
This design simplifies alignment and data acquisition, making it suitable for precise optical measurements.
The findings contribute to advancements in interferometric instrumentation for various scientific applications.