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

Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

2.1K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
2.1K
Temperature Measurement Sites01:14

Temperature Measurement Sites

4.2K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
4.2K
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

1.5K
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...
1.5K
IR Spectrometers01:25

IR Spectrometers

3.1K
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...
3.1K
Absorption of Radiation01:05

Absorption of Radiation

1.6K
The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
1.6K
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

1.3K
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
1.3K

You might also read

Related Articles

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

Sort by
Same author

Expression of somatostatin receptors in lesions different from neuroendocrine tumors.

Revista espanola de medicina nuclear e imagen molecular·2025
Same author

Operando Spectroelectrochemical Imaging of Concentration Fields and Tafel Kinetics in Microfluidic Electrochemical Devices.

Analytical chemistry·2024
Same author

[Recommendations for the prevention of healthcare-associated infections in nursing homes].

Farmaceuticos comunitarios·2024
Same author

Experimental setup for thermal measurements at the nanoscale using a SThM probe with niobium nitride thermometer.

The Review of scientific instruments·2024
Same author

Recommendations for the prevention of healthcare-associated infections in nursing homes.

Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia·2023
Same author

Infrared thermotransmittance-based temperature field measurements in semitransparent media.

The Review of scientific instruments·2023

Related Experiment Video

Updated: Apr 27, 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

1.4K

Thermoreflectance temperature measurement with millimeter wave.

C Pradere1, J-P Caumes1, S BenKhemis1

  • 1I2M (Institut de Mécanique et d'Ingénierie de Bordeaux) UMR CNRS 5295, TREFLE Department, Esplanade des Arts et Métiers, F-33405 Talence Cedex, France.

The Review of Scientific Instruments
|July 3, 2014
PubMed
Summary

A new GigaHertz (GHz) thermoreflectance technique measures transient temperatures of materials behind opaque surfaces. This method reveals a significantly higher thermoreflectance coefficient at terahertz frequencies, promising advanced applications.

More Related Videos

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
08:52

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

Published on: April 30, 2018

7.9K
Fabrication and Testing of Photonic Thermometers
08:44

Fabrication and Testing of Photonic Thermometers

Published on: October 24, 2018

5.4K

Related Experiment Videos

Last Updated: Apr 27, 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

1.4K
Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
08:52

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

Published on: April 30, 2018

7.9K
Fabrication and Testing of Photonic Thermometers
08:44

Fabrication and Testing of Photonic Thermometers

Published on: October 24, 2018

5.4K

Area of Science:

  • Physics
  • Materials Science
  • Metrology

Background:

  • Transient temperature measurement is crucial for understanding material properties.
  • Existing thermoreflectance techniques are limited in their ability to probe materials behind opaque layers.
  • Terahertz (THz) radiation offers unique penetration capabilities.

Purpose of the Study:

  • To develop and demonstrate a GigaHertz (GHz) thermoreflectance technique for measuring transient temperatures.
  • To investigate the thermoreflectance coefficient of metals and semiconductors at THz frequencies.
  • To assess the potential of this technique for materials hidden behind opaque surfaces.

Main Methods:

  • Utilized a commercial THz pyrometer for synchronous detection of modulated millimeter waves (110 GHz).
  • Employed a shielding layer (5 cm thick Teflon) to hide the samples.
  • Performed measurements on aluminum, copper, and silicon bulk materials.

Main Results:

  • Successfully measured transient temperatures of materials behind an opaque shield.
  • Reported the first measurement of the thermoreflectance coefficient at THz frequencies.
  • Observed a thermoreflectance coefficient approximately 100 times higher (10⁻³ K⁻¹) at 2.8 mm radiation compared to visible wavelengths (10⁻⁵ K⁻¹).

Conclusions:

  • The developed GHz thermoreflectance technique enables non-contact transient temperature measurements through opaque barriers.
  • A significantly enhanced thermoreflectance coefficient at THz frequencies was demonstrated for metals and semiconductors.
  • This giant thermoreflectance effect holds considerable promise for future thermoreflectance-based applications.