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

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...
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...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

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.

You might also read

Related Articles

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

Sort by
Same author

Evaluation of the Effectiveness of the Socket Preservation Technique Using Allogeneic and Xenogeneic Materials: A Randomized Controlled Trial.

Journal of functional biomaterials·2026
Same author

Dual-peak sensing with hyperbolic Ag-SiO<sub>2</sub> nanodisks.

Optics express·2026
Same author

Experimental full-field Fresnel incoherent correlation holography using a digital micromirror device.

Applied optics·2026
Same author

Spectral nonuniformity of DMD reflectance in the near-infrared and its mitigation with germanium interference filters.

Applied optics·2026
Same author

AlInAs step-graded buffer for reducing dark current in InAs based photodetector.

Optics express·2025
Same author

Optimized surface gratings for high-speed polarization switching in spin-VCSELs.

Optics express·2025

Related Experiment Video

Updated: May 10, 2026

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

11.1K

Absorption enhancement in LWIR detector via waveguide and plasmonic modes engineering.

Andrzej Janaszek, Piotr Wróbel, Maciej Dems

    Optics Express
    |December 19, 2025
    PubMed
    Summary

    This study demonstrates a high-temperature long-wavelength infrared (LWIR) photodetector with enhanced optical absorption using InAs/InAsSb type-II superlattices (T2SL). The design utilizes waveguide and surface plasmon polariton (SPP) modes for efficient light absorption in thin detectors.

    More Related Videos

    Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
    09:00

    Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

    Published on: December 11, 2013

    5.5K
    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.7K

    Related Experiment Videos

    Last Updated: May 10, 2026

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    11.1K
    Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
    09:00

    Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

    Published on: December 11, 2013

    5.5K
    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.7K

    Area of Science:

    • Optoelectronics
    • Materials Science
    • Nanophotonics

    Background:

    • Long-wavelength infrared (LWIR) photodetectors are crucial for thermal imaging and sensing.
    • Achieving high optical absorption in thin photodetector structures remains a challenge.
    • Type-II superlattices (T2SL) offer tunable bandgaps for infrared applications.

    Purpose of the Study:

    • To demonstrate enhanced optical absorption in a thin InAs/InAsSb type-II superlattice (T2SL) photodetector.
    • To investigate the role of waveguide and surface plasmon polariton (SPP) modes in absorption enhancement.
    • To explore the impact of a highly doped semiconductor contact (HDSC) layer on photodetector performance.

    Main Methods:

    • Fabrication of a thin InAs/InAsSb T2SL absorber layer.
    • Integration of an adjacent highly doped semiconductor contact (HDSC) layer.
    • Characterization of optical absorption enhancement through mode excitation (waveguide and SPP).

    Main Results:

    • Demonstrated enhanced optical absorption in the LWIR photodetector.
    • Observed significant absorption from guided modes between 7 µm and 9 µm.
    • SPP modes contributed to resonance near 10 µm.
    • The absorber-HDSC interface provided tunable Fresnel reflection phase.

    Conclusions:

    • The developed photodetector design enables efficient absorption in thin structures.
    • Excitation of waveguide and SPP modes is key to enhanced absorption.
    • The configuration advances subwavelength photonic design for infrared applications.