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

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
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...

You might also read

Related Articles

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

Sort by
Same author

Anatomical feasibility and experimental evaluation of sensor coupling sites for fully implantable active middle ear implants.

Hearing research·2026
Same author

Assessing plant water status: Part 2 - Non-destructive and remote sensing approaches.

Journal of the science of food and agriculture·2026
Same author

Assessing plant water status: Part 1 - Classical methods.

Journal of the science of food and agriculture·2026
Same author

Combining Time-Stamped Insect Sampling With eDNA-Metabarcoding of Guano to Reconstruct Community Interactions.

Ecology and evolution·2026
Same author

A method to record drilling noise during skull surgery for the development of noise-reducing assistance systems.

Hearing research·2026
Same author

Relationship of sound transmission and ossicular chain mobility: investigations for the development of an intraoperative predictive surgical tool using a robotic approach.

Hearing research·2026

Related Experiment Video

Updated: Jul 4, 2026

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
09:10

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

Continuous wave terahertz spectrometer as a noncontact thickness measuring device.

Rafał Wilk1, Falk Breitfeld, Martin Mikulics

  • 1Institute for High-Frequency Technology, Schleinitzstrasse, Braunschweig, Germany. r.wilk@menlosystems.com

Applied Optics
|June 3, 2008
PubMed
Summary

We developed a low-cost terahertz spectrometer using dipole antennas and laser diodes. This system achieves high signal-to-noise ratios and can reconstruct sample thickness profiles from terahertz images.

More Related Videos

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

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Related Experiment Videos

Last Updated: Jul 4, 2026

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
09:10

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

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

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Area of Science:

  • Optics and Photonics
  • Spectroscopy
  • Terahertz Technology

Background:

  • Terahertz (THz) spectroscopy is a powerful non-invasive technique for material characterization.
  • Developing cost-effective and robust THz instrumentation remains a key challenge for wider adoption.

Purpose of the Study:

  • To present a novel, low-cost terahertz spectrometer with coherent detection.
  • To demonstrate the capability of the developed spectrometer for imaging and sample profiling.

Main Methods:

  • Utilized two simple and robust dipole antennas driven by two laser diodes for THz generation and detection.
  • Employed coherent detection with lock-in amplification for enhanced signal-to-noise ratio.
  • Acquired THz images of a sample to reconstruct its thickness profile.

Main Results:

  • The spectrometer covers frequencies up to 1 THz.
  • Achieved a peak signal-to-noise ratio exceeding 40 dB with a lock-in integration time of 30 ms.
  • Successfully reconstructed the thickness profile of a sample from the acquired THz image.

Conclusions:

  • The presented low-cost terahertz spectrometer offers a viable and effective solution for material analysis.
  • The system's performance, including its signal-to-noise ratio and imaging capability, makes it suitable for various applications.
  • This development can facilitate broader accessibility and application of terahertz spectroscopy.