Low loss metallic waveguide for transmission of optical radiation

Journal Article · Tue May 01 00:00:00 EDT 1984 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.333388· OSTI ID:5130739

Zakowicz, W

It is shown that a significant reduction of losses for transmission of optical radiation in a hollow metallic waveguide can be achieved by a proper dielectric coating of its walls. We solve and discuss the mode structure of a rectangular waveguide with two coated walls. An estimation of the losses in the metal walls and the dielectric coating is given. For short wavelengths (lambda<10 ..mu..) losses occur mainly in the metal wall, while for longer waveguide length they occur mainly in the dielectric. An example shows that for lambda = 1 ..mu.. the losses are reduced from 53 db/m for an uncoated waveguide to 4 x 10/sup -6/ db/m for a coated one.

• Research Organization: National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 5130739
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 55:9; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ATTENUATION
COATINGS
DEPOSITION
DIELECTRIC MATERIALS
ELECTROMAGNETIC RADIATION
ENERGY LOSSES
FILMS
INFRARED RADIATION
LIGHT TRANSMISSION
LOSSES
MATERIALS
OPTICAL MODES
OSCILLATION MODES
RADIATIONS
SURFACE COATING
THIN FILMS
WAVEGUIDES