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 Experiment Videos

New effect in near-field thermal emission.

K P Gaikovich1, A N Reznik, V L Vaks

  • 1Institute for Physics of Microstructures RAS, GSP-105, Nizhny Novgorod, Russia.

Physical Review Letters
|March 23, 2002
PubMed
Summary

Researchers discovered a near-field effect in thermal radio emission from dielectric materials. This finding reveals a new method for analyzing subsurface temperature distributions using antenna properties.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Quantitative characterization of semiconductor structures with a scanning microwave microscope.

The Review of scientific instruments·2018
Same author

Pseudopulse near-field subsurface tomography.

Physical review letters·2012
Same author

Subsurface near-field scanning tomography.

Physical review letters·2007
Same author

Quasistationary field of thermal emission and near-field radiometry.

Physical review. E, Statistical, nonlinear, and soft matter physics·2004
Same author

Soft-tissue stitching instruments.

Biomedical engineering·1974
Same author

SB-2 and SB-3 instruments for suturing bronchi and soft tissues.

Biomedical engineering·1971

Area of Science:

  • Physics
  • Electromagnetism
  • Radiophysics

Background:

  • Thermal radio emission from absorbing dielectric media is influenced by electromagnetic field distribution near the surface.
  • Understanding the emission formation depth is crucial for remote sensing applications.

Purpose of the Study:

  • To experimentally discover and theoretically describe a near-field effect in thermal radio emission.
  • To investigate the dependence of emission formation depth on antenna characteristics and proximity to the surface.
  • To establish a method for obtaining information about subsurface temperature distribution.

Main Methods:

  • Experimental investigation of thermal radio emission from an absorbing dielectric medium.
  • Development of a theoretical model to analyze the contributions of wave and quasistationary field components.
  • Measurement of emission characteristics with varying receiver antenna size and height.

Main Results:

  • A near-field effect was experimentally observed, altering the effective depth of emission formation.
  • The effective formation depth was found to be less than the skin-layer depth and dependent on antenna parameters.
  • A theoretical framework was established to differentiate between wave and quasistationary field contributions to Plank emission.

Conclusions:

  • The discovered near-field effect provides a novel approach for probing subsurface temperature profiles.
  • Antenna characteristics significantly influence the interpretation of thermal radio emission data.
  • The developed theory enables a more accurate analysis of Plank emission near a radiating surface.

Related Experiment Videos