Resonant excitation of coherent Cerenkov radiation in dielectric lined waveguides

Journal Article · Mon May 16 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3592579· OSTI ID:21518444

Andonian, G; Williams, O; Wei, X; Niknejadi, P; Hemsing, E; Rosenzweig, J B ^[1]; Muggli, P ^[2]; Babzien, M; Fedurin, M; Kusche, K; Malone, R; Yakimenko, V ^[3]

---

1. Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095 (United States)
2. University of Southern California, Los Angeles, California 90089 (United States)
3. Accelerator Test Facility, Brookhaven National Laboratory, Upton, New York 11973 (United States)

We report the observation of coherent Cerenkov radiation in the terahertz regime emitted by a relativistic electron pulse train passing through a dielectric lined cylindrical waveguide. We describe the beam manipulations and measurements involved in repetitive pulse train creation including comb collimation and nonlinear optics corrections. With this technique, modes beyond the fundamental are selectively excited by use of the appropriate frequency train. The spectral characterization of the structure shows preferential excitation of the fundamental and of a higher longitudinal mode.

• OSTI ID: 21518444
• Journal Information: Applied Physics Letters, Vol. 98, Issue 20; Other Information: DOI: 10.1063/1.3592579; (c) 2011 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
CHERENKOV RADIATION
COHERENT RADIATION
COLLIMATORS
CORRECTIONS
CYLINDRICAL CONFIGURATION
DIELECTRIC MATERIALS
ELECTRONS
EXCITATION
NONLINEAR OPTICS
PULSES
RELATIVISTIC RANGE
SPECTRA
THZ RANGE
WAVEGUIDES
CONFIGURATION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
FERMIONS
FREQUENCY RANGE
LEPTONS
MATERIALS
OPTICS
RADIATIONS