BROWSE

Related Researcher

Author

Choi, EunMi
THz Vacuum Electronics and Electrodynamics
Research Interests
  • High power millimeter-wave/THz wave, vacuum electronics, plasma breakdown, electron beams, electromagnetics, microwave/RF engineering

ITEM VIEW & DOWNLOAD

In situ endoscopic observation of higher-order mode conversion in a microwave mode converter based on an electro-optic probe system

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
In situ endoscopic observation of higher-order mode conversion in a microwave mode converter based on an electro-optic probe system
Author
Lee, IngeunLee, Dong-JoonChoi, EunMi
Keywords
FIELD; CIRCUITS; SENSORS
Issue Date
201411
Publisher
OPTICAL SOC AMER
Citation
OPTICS EXPRESS, v.22, no.22, pp.27542 - 27552
Abstract
Visualizing the electromagnetic field transformation inside a microwave mode conversion region has been considered to be only realizable by simulation studies. For the first time, we present a comprehensive experimental observation of the electric field transformation occurring inside a metallic waveguide TE01-to-TE02 mode converter. An efficient electro-optic (EO) probe and its associated probing system were used for measuring the electric field pattern in the external near-field region as well as in the internal and penetrated region of the mode converter. Utilizing the optically measured field patterns at the aperture of the mode converter, the conversion performance from the TE01 mode to the TE02 mode can be also evaluated. Experimentally measured field patterns near the apertures show excellent agreement with simulation data. The mode conversion to the next higher-order mode (TE01 to TE02) was experimentally demonstrated with phase-stabilized and field-animated post processing. The presented in situ endoscopic photonic measurement technique for the field evolution inside a semi-enclosed structure could be used for visually inspecting manufacturing errors in fabricated structures, and could be of great interest for research on higher-order mode formation and transmission.
URI
http://scholarworks.unist.ac.kr/handle/201301/10862
DOI
http://dx.doi.org/10.1364/OE.22.027542
ISSN
1094-4087
Appears in Collections:
SNS_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU