Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

IR Spectrometers01:25

IR Spectrometers

2.6K
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...
2.6K
Mass Spectrometers01:16

Mass Spectrometers

8.9K
This lesson details the instrumentation of a mass spectrometer—a physical instrument to perform mass spectrometry on analyte molecules and record the characteristic mass spectra. This is achieved via three chief functions:
8.9K
Leaky Scanning02:28

Leaky Scanning

5.7K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.7K
NMR Spectrometers: Overview01:20

NMR Spectrometers: Overview

2.2K
NMR spectrometers consist of a strong magnet, a radiofrequency transmitter, and a detector attached to a computer console for recording spectra of samples containing NMR-active nuclei. In first-generation NMR instruments called continuous-wave spectrometers, the resonance frequencies of the nuclei are determined by frequency-sweep or field-sweep methods. The magnetic field strength is fixed and the rf signal is swept in the former, while the radiofrequency signal is fixed and the magnetic field...
2.2K
UV–Vis Spectrometers01:14

UV–Vis Spectrometers

3.6K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
3.6K
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

1.8K
A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
1.8K

You might also read

Related Articles

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

Sort by
Same author

Natural Biomaterials for Osteochondral Repair: From Source to Strategy.

Advanced healthcare materials·2026
Same author

Endogenous alkaline phosphatase gradient-driven stiffness-adaptive hydrogel regulates stem cell fate for osteochondral repair.

Biomaterials·2026
Same author

Metabolic Reprogramming of T Cells by MSCs Rebalances Th17/Treg Axis to Attenuate Collagen-Induced Arthritis.

Journal of immunology research·2026
Same author

Recent advances in diagnostic methodologies for tibiofibular syndesmosis injuries.

EFORT open reviews·2026
Same author

Atomically Dispersed Mn Synergized With LiBaH<sub>3</sub> on MgO Enables Efficient Ammonia Synthesis via an H<sup>-</sup> Assisted N<sub>2</sub> Dissociation Mechanism.

Angewandte Chemie (International ed. in English)·2026
Same author

Multi-View Analysis of Facial Expressions in Minimally Verbal Autism: Preliminary Evidence From Social Communication Observations.

Journal of autism and developmental disorders·2026

Related Experiment Video

Updated: Feb 2, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

8.7K

Miniaturized NIR Spectrometer Based on Novel MOEMS Scanning Tilted Grating.

Jian Huang1,2,3, Quan Wen4,5, Qiuyu Nie6,7

  • 1Key Laboratory of Fundamental Science of Micro/Nano-Device and System Technology, Chongqing University, Chongqing 400044, China. huangjian7@gmail.com.

Micromachines
|November 15, 2018
PubMed
Summary

This study introduces a compact, low-cost near-infrared spectrometer using a scanning grating mirror. It offers portable, rapid spectral analysis for process control and sensing applications.

Keywords:
deflection position detectormicro-NIR spectrometerscanning grating mirror

More Related Videos

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.1K
Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
06:00

Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test

Published on: September 17, 2021

3.1K

Related Experiment Videos

Last Updated: Feb 2, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

8.7K
Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.1K
Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
06:00

Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test

Published on: September 17, 2021

3.1K

Area of Science:

  • Optical Engineering
  • Spectroscopy
  • Instrumentation

Background:

  • Classical spectrometers are often bulky and expensive, limiting their use in portable or field applications.
  • There is a need for miniaturized, cost-effective spectroscopic instruments for real-time monitoring and analysis.

Purpose of the Study:

  • To develop and characterize a miniaturized, portable, and low-cost dispersive near-infrared spectrometer.
  • To demonstrate the feasibility of using a scanning grating mirror (SGM) in a compact Czerny-Turner configuration.

Main Methods:

  • Designed a spectrometer utilizing a resonantly-driven scanning grating mirror (SGM) as the dispersive element.
  • Integrated an InGaAs diode for full spectra detection and a deflection position detector with a closed-loop circuit for accurate recalculation.
  • Conducted performance tests to evaluate spectral range, resolution, stability, size, and power consumption.

Main Results:

  • Achieved a spectral range of 800 nm–1800 nm with a resolution < 10 nm.
  • The spectrometer prototype has a compact size (9 × 7 × 7 cm³), wavelength stability of ±1 nm, and a measuring time < 1 ms.
  • Demonstrated low power consumption (3 W at 5 V DC) and a high signal-to-noise ratio (3267 at full scale).

Conclusions:

  • The developed spectrometer offers a viable, miniaturized alternative to traditional spectrometers.
  • Its portability, low cost, and rapid measurement capabilities make it suitable for process control and portable/airborne spectroscopic sensing.