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

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

296
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
296
Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

890
Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
890
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

1.2K
Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and signal-to-noise ratio for the analyte. 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 collision-induced...
1.2K
Mass Analyzers: Overview01:13

Mass Analyzers: Overview

807
The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
807
Matrix-Assisted Laser Desorption Ionization (MALDI)01:08

Matrix-Assisted Laser Desorption Ionization (MALDI)

448
Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI spectrometry is widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.
The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix material. The...
448
Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

705
The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
705

You might also read

Related Articles

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

Sort by
Same author

Effects of triticale silage substitution for corn silage on growth performance, serum biomarkers, rumen fermentation, and rumen bacterial community of Pingliang Red Cattle.

BMC microbiology·2026
Same author

Hirudin suppresses ovarian cancer cell proliferation and glycolysis through inhibiting the NF-κB/HK3 axis.

Gene·2026
Same author

Familial Disclosure and Cascade Testing in High-Risk Families is Influenced by Gene Variant Penetrance: Implications for Family based Breast Cancer Prevention.

Research square·2026
Same author

Cascade screening and genetic variant pathogenicity assessment for familial hypercholesterolemia in a township‑based elderly population.

Lipids in health and disease·2026
Same author

Hearing/vestibular problems, racial differences, and associations with physical function impairment among breast cancer survivors.

JNCI cancer spectrum·2026
Same author

Cancer-Associated Fibroblasts Promote Tumor Immunosuppression in Hepatocellular Carcinoma via the NNMT-ANGPTL4 Axis.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Sep 11, 2025

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

15.2K

High-Density Arrayed Spectrometer with Microlens Array Grating for Multi-Channel Parallel Spectral Analysis.

Fangyuan Zhao1, Zhigang Feng1, Shuonan Shan1

  • 1Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.

Sensors (Basel, Switzerland)
|August 14, 2025
PubMed
Summary
This summary is machine-generated.

A novel microlens array grating spectrometer offers compact, high-resolution spectral analysis for micro-light-emitting diodes (Micro-LEDs). This system enables over 2000 parallel channels for efficient industrial inspection and sorting.

Keywords:
MLAGMicro-LEDline-scan spectral confocalmulti-channel spectrometerspectral detectionspectrometer

More Related Videos

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
08:49

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

1.5K
Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
09:57

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

Published on: July 25, 2022

4.1K

Related Experiment Videos

Last Updated: Sep 11, 2025

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

15.2K
Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
08:49

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

1.5K
Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
09:57

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

Published on: July 25, 2022

4.1K

Area of Science:

  • Optics and Photonics
  • Spectroscopy
  • Materials Science

Background:

  • Compact array spectrometers are crucial for multi-channel spectral analysis in devices like micro-light-emitting diodes (Micro-LEDs).
  • Conventional spectrometers face limitations in parallel detection, size, and spatial resolution.

Purpose of the Study:

  • To introduce a novel spectrometer architecture based on a microlens array grating (MLAG).
  • To overcome the limitations of conventional spectrometers for Micro-LED analysis.

Main Methods:

  • Integration of dispersion and focusing into a monolithic MLAG device.
  • Utilizing a 600 lines/mm blazed grating and microlens for spectral analysis.
  • Optimized microlens and aperture alignment for light divergence control.

Main Results:

  • Simultaneous acquisition across over 2000 parallel channels in a 10 mm × 10 mm unit.
  • Theoretical spectral resolution of nanometer scale across 380-780 nm.
  • Experimental spectral resolution of 3.0 nm with high uniformity (CV < 1.11%) and precision (< 1.0 nm).

Conclusions:

  • The MLAG spectrometer provides a compact, high-performance solution for spectral analysis.
  • Enables wafer-level spectral screening and high-precision industrial inline sorting of Micro-LEDs.
  • Offers a practical hardware solution for Micro-LED defect inspection.