Surface field excitation by an obliquely incident wave

I.V. Konoplev; A.R. Phipps; A.D.R. Phelps; Craig Robertson; K. Ronald; A.W. Cross

doi:10.1063/1.4801759

Surface field excitation by an obliquely incident wave

I.V. Konoplev, A.R. Phipps, A.D.R. Phelps, Craig Robertson, K. Ronald, A.W. Cross

Research output: Contribution to journal › Article

16 Citations (Scopus)

175 Downloads (Pure)

Abstract

Observation of surface field excitation by an obliquely incident wave inside a cylindrical two-dimensional periodic surface lattice is a step forward toward THz Cherenkov amplifiers. Here we observe and discuss this phenomenon, investigating it using different approaches. The results are compared, and it is shown that an increase in the lattice contrast results in excitation of surface fields by an obliquely incident wave resulting in the eigenmode formation. Measurements were conducted by studying forward transmission of the signal, and it is shown that the measured gaps in the spectra are associated with the eigenmode formation rather than band gap establishment.

Original language	English
Article number	141106
Number of pages	4
Journal	Applied Physics Letters
Volume	102
Issue number	14
DOIs	https://doi.org/10.1063/1.4801759
Publication status	Published - Apr 2013

Keywords

Surface waves
Cherenkov
millimetre-wave
millimetre-wave source
periodic surface lattice
cylindrical cavity
THz
THz electron-beam source
wave coupling
oblique incident wave
free electron devices
free electron amplifier

Access to Document

10.1063/1.4801759

Konoplev Appl Phys Lett 2013Final published version, 1.14 MB

Link to publication in Scopus

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Projects

2 Finished

Pathways to Impact Award

Littlejohn, D., Cross, A., Phelps, A. & Ronald, K.

EPSRC (Engineering and Physical Sciences Research Council)

1/08/10 → 31/03/11

Project: Research

Generation of high power, high frequency radiation using high brightness pseudospark-sourced beam

Cross, A., He, W., Phelps, A., Ronald, K. & Zhang, L.

EPSRC (Engineering and Physical Sciences Research Council)

1/10/08 → 31/03/12

Project: Research

Activities

2 Invited talk
1 Hosting an academic visitor

Periodic structures manufactured by 3D printing for electron beam excitation of coherent sub-Terahertz radiation

Alan Phelps (Keynote speaker)

30 Sep 2016

Activity: Talk or presentation types › Invited talk

Invited Seminar at Indian Physics Association, Pilani, India "Periodic surface lattice sources of mm-wave/THz radiation"

Alan Phelps (Invited speaker)

8 Mar 2014

Activity: Talk or presentation types › Invited talk

Ivan Konoplev

Alan Phelps (Host)

1 Jan 2012 → 31 Dec 2015

Activity: Hosting a visitor types › Hosting an academic visitor

Cite this

Konoplev, I. V., Phipps, A. R., Phelps, A. D. R., Robertson, C., Ronald, K., & Cross, A. W. (2013). Surface field excitation by an obliquely incident wave. Applied Physics Letters, 102(14), [141106]. https://doi.org/10.1063/1.4801759

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