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Author Mitrofanov, Oleg ♦ Lee, M. ♦ Hsu, J. W. P. ♦ Pfeiffer, L. N. ♦ West, K. W. ♦ Wynn, J. D. ♦ Federici, J. F.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ APERTURES ♦ MICROSCOPES ♦ PHYSICS ♦ PROBES ♦ SPATIAL RESOLUTION ♦ THICKNESS
Abstract Transmission of single-cycle terahertz pulses through subwavelength apertures is experimentally studied in the near-field zone. Measurements of throughput for aperture sizes d as small as {lambda}/300 show that the theoretical d{sup 3} law requires a correction term which takes into account the physical thickness of the aperture screen. Frequency dependent transmission of the broad band pulses explains changes in their spectral and temporal characteristics. Practical application of small apertures in near-field microscope probes allows achievement of spatial resolution of 7 {mu}m for pulses with a broad spectral content of {lambda}=120--1500{mu}m. {copyright} 2001 American Institute of Physics.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-08-13
Publisher Place United States
Journal Applied Physics Letters
Volume Number 79
Issue Number 7


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