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

Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...
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...
The Electromagnetic Spectrum01:24

The Electromagnetic Spectrum

Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...

You might also read

Related Articles

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

Sort by
Same author

Femtosecond Optical Kerr Effect in Alzheimer's Brain Tissue.

Journal of biophotonics·2026
Same author

Optical orbital angular momentum analogy to the Stern-Gerlach experiment.

Optics letters·2024
Same author

Laser tissue welding by using collagen excitation at a 1,720  nm near-infrared optical window III.

Applied optics·2024
Same author

Femtosecond optical Kerr effect in normal and grades of cancerous breast tissues as a new optical biopsy method.

Journal of biophotonics·2023
Same author

Higher harmonics and supercontinuum generated from the Kerr response time in different states of matter from a universal electromagnetic model.

Scientific reports·2023
Same author

Femtosecond Optical Kerr Gate in tissues.

Journal of biophotonics·2023
Same journal

Method of spatial scanning of modulated laser radiation for outline imaging of interphalangeal joints.

Journal of biomedical optics·2026
Same journal

Multimodal optical imaging for the assessment of the teratogenic effects of ethanol on zebrafish development.

Journal of biomedical optics·2026
Same journal

Fluorescence properties of collagen types I-V: a comprehensive study of spectral and lifetime characteristics.

Journal of biomedical optics·2026
Same journal

Spectral dependence of lipofuscin fluorescence lifetimes revealed by FLIM with a superconducting nanowire single-photon detector.

Journal of biomedical optics·2026
Same journal

Building the future of biophotonics through experiential education and seasonal schools.

Journal of biomedical optics·2026
Same journal

Time-of-flight fluorescence depth mapping using a spatiotemporal deep learning model.

Journal of biomedical optics·2026
See all related articles

Related Experiment Video

Updated: Jun 3, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

Terahertz sources.

Pavel Shumyatsky1, Robert R Alfano

  • 1City College of New York, Institute for Ultrafast Spectroscopy and Lasers, Physics Department, New York, New York 10031, USA.

Journal of Biomedical Optics
|April 5, 2011
PubMed
Summary
This summary is machine-generated.

This overview covers terahertz (THz) sources, crucial for applications in physics, biology, chemistry, medicine, imaging, and spectroscopy. THz low-frequency vibrations play a key role in various scientific processes.

More Related Videos

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Terahertz Imaging and Characterization Protocol for Freshly Excised Breast Cancer Tumors
08:56

Terahertz Imaging and Characterization Protocol for Freshly Excised Breast Cancer Tumors

Published on: April 5, 2020

Related Experiment Videos

Last Updated: Jun 3, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Terahertz Imaging and Characterization Protocol for Freshly Excised Breast Cancer Tumors
08:56

Terahertz Imaging and Characterization Protocol for Freshly Excised Breast Cancer Tumors

Published on: April 5, 2020

Area of Science:

  • Biophysics
  • Chemical Physics
  • Optical Physics
  • Spectroscopy
  • Medical Imaging

Background:

  • Terahertz (THz) radiation probes low-frequency vibrational modes.
  • These modes are fundamental to processes in physics, biology, and chemistry.
  • Understanding THz sources is vital for interdisciplinary scientific applications.

Purpose of the Study:

  • To provide a historical overview of terahertz (THz) sources.
  • To highlight the significance of THz sources for diverse scientific fields.
  • To inform researchers in biomedical and optical communities about THz applications.

Main Methods:

  • Literature review of terahertz (THz) source development.
  • Analysis of historical trends in THz technology.
  • Synthesis of information on THz applications across disciplines.

Main Results:

  • Terahertz (THz) sources have evolved significantly over time.
  • A wide range of applications exist in physics, biology, chemistry, and medicine.
  • THz spectroscopy and imaging are key areas of development.

Conclusions:

  • Terahertz (THz) sources are indispensable tools in modern science.
  • Continued development of THz sources will drive innovation in various fields.
  • The interdisciplinary nature of THz science necessitates broad community engagement.