TY - JOUR
T1 - Stimulated Compton scattering of surface plasma wave excited over metallic surface by a laser
AU - Goel, Deepika
AU - Chauhan, Prashant
AU - Varshney, Anshu
AU - Singh, D. B.
AU - Sajal, Vivek
N1 - Publisher Copyright:
© 2015 Cambridge University Press.
PY - 2015/9/21
Y1 - 2015/9/21
N2 - A high-frequency surface plasma wave (SPW) excited over metallic surface irradiated by a laser beam, can undergo stimulated Compton scattering if phase velocity of daughter plasma wave is equal to the Fermi velocity for metal. The pump SPW parametrically excites a quasi-electrostatic plasma wave and a backscattered sideband SPW at resonance ω0 = ω-ω1 and. The growth rate of Compton process increases with the frequency of incident laser and turns out to be 5.425 × 1010 rad/s at laser frequency ω0 = 0.7595 × 1015 rad/s for incident laser amplitude A 0L = 11 × 1011 V/m, laser spot size b = 1.38 × 10-5 m, and free electron density of metal n 0 = 5.85 × 1028/m3. The excitation of highly damped quasi-electrostatic plasma wave in this parametric process provide a better nonlinear option for surface heating as compared with direct laser heating. The process can also be used for diagnostics purposes.
AB - A high-frequency surface plasma wave (SPW) excited over metallic surface irradiated by a laser beam, can undergo stimulated Compton scattering if phase velocity of daughter plasma wave is equal to the Fermi velocity for metal. The pump SPW parametrically excites a quasi-electrostatic plasma wave and a backscattered sideband SPW at resonance ω0 = ω-ω1 and. The growth rate of Compton process increases with the frequency of incident laser and turns out to be 5.425 × 1010 rad/s at laser frequency ω0 = 0.7595 × 1015 rad/s for incident laser amplitude A 0L = 11 × 1011 V/m, laser spot size b = 1.38 × 10-5 m, and free electron density of metal n 0 = 5.85 × 1028/m3. The excitation of highly damped quasi-electrostatic plasma wave in this parametric process provide a better nonlinear option for surface heating as compared with direct laser heating. The process can also be used for diagnostics purposes.
KW - Parametric instability
KW - Plasma-beam interactions
KW - Surface plasma waves
UR - http://www.scopus.com/inward/record.url?scp=84949313162&partnerID=8YFLogxK
U2 - 10.1017/s0263034615000695
DO - 10.1017/s0263034615000695
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:84949313162
SN - 0263-0346
VL - 33
SP - 641
EP - 646
JO - Laser and Particle Beams
JF - Laser and Particle Beams
IS - 4
ER -