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

Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

368
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
368
Gas Chromatography: Types of Detectors-I01:21

Gas Chromatography: Types of Detectors-I

416
There are different types of detectors used in gas chromatography, each with its own specific properties that make it suitable for detecting certain types of analytes. The most commonly used detectors in GC are thermal conductivity detector (TCD), flame ionization detector (FID), and electron capture detector (ECD).
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
416
Gas Chromatography: Overview of Detectors01:13

Gas Chromatography: Overview of Detectors

515
Detectors in gas chromatography (GC) help identify and quantify the components of a mixture by translating chemical properties into measurable signals, which are displayed on a chromatogram. Detectors can be categorized into two main types: destructive and non-destructive.
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...
515
High-Performance Liquid Chromatography: Types of Detectors01:15

High-Performance Liquid Chromatography: Types of Detectors

540
The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
540

You might also read

Related Articles

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

Sort by
Same author

Mid-Infrared Sensing and Ultrafast Photoresponse in Silicon-Based Plasmonic Detectors.

ACS photonics·2026
Same author

Surface-emitting ring quantum cascade lasers.

Nanophotonics (Berlin, Germany)·2025
Same author

Micro-mirror aided mid-infrared plasmonic beam combiner monolithically integrated with quantum cascade lasers and detectors.

Nanophotonics (Berlin, Germany)·2025
Same author

Driven bright solitons on a mid-infrared laser chip.

Nature·2025
Same author

Nozaki-Bekki solitons in semiconductor lasers.

Nature·2024
Same author

Active mid-infrared ring resonators.

Nature communications·2024

Related Experiment Video

Updated: Jun 27, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.6K

Design and performance of GaSb-based quantum cascade detectors.

Miriam Giparakis1, Andreas Windischhofer1, Stefania Isceri1

  • 1Institute of Solid State Electronics, TU Wien, Gußhausstraße 25, 1040 Vienna, Austria.

Nanophotonics (Berlin, Germany)
|April 29, 2024
PubMed
Summary
This summary is machine-generated.

Strain-balanced InAs/AlSb quantum cascade detectors (QCDs) on GaSb substrates show improved performance. Optimized designs achieve high room-temperature responsivity and detectivity for mid-infrared applications.

Keywords:
III–V semiconductorsInAs/AlSb on GaSbmid-infrared detectionmolecular beam epitaxyquantum cascade detector

More Related Videos

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

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

Published on: March 22, 2019

6.2K
Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

16.2K

Related Experiment Videos

Last Updated: Jun 27, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.6K
Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

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

Published on: March 22, 2019

6.2K
Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

16.2K

Area of Science:

  • Semiconductor Physics
  • Optoelectronics
  • Materials Science

Background:

  • InAs/AlSb heterostructures offer unique electronic and optical properties for advanced detector applications.
  • Strain-balanced growth on GaSb substrates is crucial for achieving high-quality InAs/AlSb heterostructures.
  • Quantum Cascade Detectors (QCDs) leverage intersubband transitions for tailored infrared detection.

Purpose of the Study:

  • To design and fabricate novel InAs/AlSb quantum cascade detectors (QCDs) on GaSb substrates with enhanced performance.
  • To explore strain engineering using submonolayer InSb layers to optimize detector design and material properties.
  • To investigate the optical and electrical characteristics of these QCDs across a range of wavelengths.

Main Methods:

  • Utilized strain-balanced epitaxy of InAs/AlSb on GaSb substrates with controlled InAs:AlSb ratios.
  • Introduced submonolayer InSb layers to engineer strain and achieve lattice-matched conditions for detector design.
  • Designed and grew four active regions with varying InAs:AlSb ratios for mid-infrared detection (3.65–5.5 µm).
  • Characterized the fabricated QCDs for responsivity, detectivity, and spectral response at room temperature.

Main Results:

  • Achieved a room-temperature peak responsivity of 26.12 mA/W and a detectivity of 1.41 × 10^8 Jones for an optimized QCD at 4.3 µm.
  • Demonstrated successful strain engineering enabling high InAs:AlSb thickness ratios (up to 2.8:1) for tailored active region designs.
  • Observed higher-energy interband signals in the mid- to near-infrared due to type-II alignment and narrow InAs band gap.

Conclusions:

  • Strain-balanced InAs/AlSb QCDs on GaSb substrates are a promising platform for high-performance infrared detection.
  • Strain engineering with submonolayer InSb is an effective strategy to optimize QCD design and overcome lattice-matching limitations.
  • The developed QCDs exhibit excellent room-temperature performance and potential for broadband infrared sensing applications.