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...

You might also read

Related Articles

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

Sort by

Same author

The global scope of heterogeneous vancomycin-intermediate Staphylococcus aureus (hVISA): a meta-analysis of its clinical impact, molecular epidemiology, and diagnostic challenges across 15,165 isolates.

BMC infectious diseases·2026

Same author

Multifunctional light-activated hydrogel: Synergistic photothermal sterilization and tissue microenvironment engineering for enhanced wound healing.

Biomaterials advances·2026

Same author

Advances in research on radiopharmaceuticals targeting NTSR1.

European journal of medicinal chemistry·2026

Same author

Photothermally sterilizable hydrogel patch for accelerated burn wound healing.

International journal of biological macromolecules·2026

Same author

Charting the evolution of personalised nutrition: a comprehensive bibliometric survey of global research landscapes and future trajectories.

Nutrition research reviews·2026

Same author

Decoding the educational impact on Alzheimer's risk: an umbrella review of Mendelian randomization evidence.

Aging & mental health·2026

Search research articles

Related Experiment Video

Updated: Mar 15, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Silicon Photonic On-Chip Spectrometer Based on Cascaded Mach-Zehnder Interferometer.

Yating Cui^1,2, Ye Yuan³, Zan Zhang⁴

¹State Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.

Sensors (Basel, Switzerland)

|March 14, 2026

Summary

This study introduces a novel silicon photonic on-chip spectrometer using cascaded Mach-Zehnder interferometers (MZIs). It achieves high-resolution spectral analysis with a compact, low-power design for advanced material characterization.

Keywords:

Mach–Zehnder interferometer computational spectrometer spectral reconstruction

More Related Videos

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

Related Experiment Videos

Last Updated: Mar 15, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

Area of Science:

Photonics and Spectrometry
Integrated Optics
Material Analysis

Background:

Spectrometers are crucial for analyzing light-matter interactions and material properties.
Increasing demand for miniaturized, portable spectrometers in diverse applications.
Existing spectrometers face limitations in size, power consumption, and precision.

Purpose of the Study:

To develop a reconfigurable silicon photonic on-chip spectrometer.
To achieve high-resolution spectral analysis with a compact footprint.
To provide an effective solution for low-power, high-precision spectral analysis.

Main Methods:

Implementation of a reconfigurable silicon photonic on-chip spectrometer using cascaded multi-stage Mach-Zehnder interferometers (MZIs).
Application of adjustable phase shifts in each MZI stage for efficient spectral sampling.
Utilization of a convex optimization algorithm with differential operators for signal reconstruction.

Main Results:

A five-stage MZI design with 216 sampling channels was successfully implemented.
Achieved a spectral reconstruction resolution of 5 pm across the 1500-1600 nm wavelength range.
Demonstrated consistently low reconstruction errors for various spectral profiles (broadband, sparse, hybrid).

Conclusions:

The proposed on-chip spectrometer offers excellent performance in device design, phase modulation, and reconstruction algorithms.
Provides a viable solution for low-power, small-footprint, high-precision spectral analysis.
Enables advanced material characterization in scientific research, industrial inspection, and biomedicine.