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

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...
UV–Vis Spectrometers01:14

UV–Vis Spectrometers

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. Samples for...
Spectrophotometry: Introduction01:16

Spectrophotometry: Introduction

Spectrophotometry is the quantitative measurement of the absorption, reflection, diffraction, or transmission of electromagnetic radiation through a material as a function of the intensity and wavelength of the radiation. A spectrophotometer is a device used to measure the change in the radiation intensity caused by its interaction with the material.
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
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...
UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent of conjugation in the...

You might also read

Related Articles

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

Sort by
Same author

The effects of climate and land cover on hazel dormouse (Muscardinus avellanarius) body mass over space and time.

Scientific reports·2026
Same author

Multiscale-structured miniaturized 3D force sensors.

Nature materials·2026
Same author

Phenotyping the Structure and Function of the Heart of Elite Sailors: Implications for Pre-Participation Cardiac Screening.

Journal of cardiovascular development and disease·2026
Same author

Drug persistence of first- and advanced-line therapy for chronic inflammatory pouch disorders: A prospective cohort spanning sequential treatment lines.

Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver·2025
Same author

A decade of innovation: the journey of Microsystems & Nanoengineering on its 10th anniversary.

Microsystems & nanoengineering·2025
Same author

Monolithic multimodal neural probes for sustained stimulation and long-term neural recording.

Science advances·2025
Same journal

Isotropic shrinkage of patterned vacancies enables three-dimensional nanoprecise metastructures for visible light applications.

Nature photonics·2026
Same journal

Strong ultrafast nonlinear optical response from megaelectronvolt electrons in semiconductors.

Nature photonics·2026
Same journal

All-optical polarization control in time-varying low-index films via plasma symmetry breaking.

Nature photonics·2026
Same journal

Experimental memory control in continuous-variable optical quantum reservoir computing.

Nature photonics·2026
Same journal

Super-resolution imaging of limited-size objects.

Nature photonics·2026
Same journal

Single-atomic-ion detection with plasmon-enhanced whispering-gallery-mode microlasers.

Nature photonics·2026
See all related articles

Related Experiment Video

Updated: Jun 9, 2026

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
11:21

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

Optical convolutional spectrometer.

Chunhui Yao1,2, Jie Ma2, Ningning Wang2

  • 1Department of Engineering, University of Cambridge, Cambridge, UK.

Nature Photonics
|June 8, 2026
PubMed
Summary
This summary is machine-generated.

A novel convolutional spectrometer offers high-precision, low-cost, miniaturized spectral analysis. This technology enables advanced in situ measurements for diverse applications, including industrial, agricultural, and healthcare monitoring.

Keywords:
Integrated opticsNear-infrared spectroscopyOptical metrologyOptical sensorsSilicon photonics

More Related Videos

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

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
12:22

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)

Published on: August 4, 2018

Related Experiment Videos

Last Updated: Jun 9, 2026

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
11:21

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

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

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
12:22

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)

Published on: August 4, 2018

Area of Science:

  • Spectroscopy
  • Optical Engineering
  • Metrology

Background:

  • Miniaturized optical spectrometers are crucial for in situ measurements but often lack the precision for metrological applications.
  • Existing compact spectrometers struggle with complex spectral identification and quantitative analysis.

Purpose of the Study:

  • To introduce a new class of miniaturized spectrometer based on the convolution theorem.
  • To demonstrate its superior performance, simplicity, and cost-effectiveness for various spectroscopic tasks.

Main Methods:

  • Developed a 'convolutional spectrometer' utilizing the convolution theorem.
  • Designed a compact, centimeter-scale device with a near-infrared bandwidth of 2,400 cm-1.
  • Achieved sub-second sampling and processing for complex spectral resolution.

Main Results:

  • The convolutional spectrometer achieved 100% success in classifying diverse solid samples (plastics, pharmaceuticals, food).
  • Quantified solution concentrations with accuracy exceeding commercial benchtop spectrometers.
  • Enabled non-invasive sensing of human biomarkers (skin moisture, blood alcohol, lactate, glucose) with high precision.

Conclusions:

  • The convolutional spectrometer represents a significant advancement for miniaturized spectral metrology.
  • Its low cost, portability, and high precision open new avenues for real-time analysis in industry, agriculture, and healthcare.
  • This technology facilitates the development of portable and wearable spectral sensing devices.