Abstract
| Language | English |
|---|---|
| Article number | 141106 |
| Number of pages | 4 |
| Journal | Applied Physics Letters |
| Volume | 102 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - Apr 2013 |
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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
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Surface field excitation by an obliquely incident wave. / Konoplev, I.V.; Phipps, A.R.; Phelps, A.D.R.; Robertson, Craig; Ronald, K.; Cross, A.W.
In: Applied Physics Letters, Vol. 102, No. 14, 141106, 04.2013.Research output: Contribution to journal › Article
TY - JOUR
T1 - Surface field excitation by an obliquely incident wave
AU - Konoplev, I.V.
AU - Phipps, A.R.
AU - Phelps, A.D.R.
AU - Robertson, Craig
AU - Ronald, K.
AU - Cross, A.W.
PY - 2013/4
Y1 - 2013/4
N2 - 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.
AB - 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.
KW - Surface waves
KW - Cherenkov
KW - millimetre-wave
KW - millimetre-wave source
KW - periodic surface lattice
KW - cylindrical cavity
KW - THz
KW - THz electron-beam source
KW - wave coupling
KW - oblique incident wave
KW - free electron devices
KW - free electron amplifier
UR - http://www.scopus.com/inward/record.url?scp=84876399004&partnerID=8YFLogxK
U2 - 10.1063/1.4801759
DO - 10.1063/1.4801759
M3 - Article
VL - 102
JO - Applied Physics Letters
T2 - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 14
M1 - 141106
ER -