Selective nonlinear optical excitation with pulses shaped by pseudorandom Galois fields

2006 ◽  
Vol 74 (4) ◽  
Author(s):  
Vadim V. Lozovoy ◽  
Bingwei Xu ◽  
Janelle C. Shane ◽  
Marcos Dantus
1994 ◽  
Vol 351 ◽  
Author(s):  
Vladimir Shalaev ◽  
R. Botet ◽  
M. Moskovits

ABSTRACTResonant optical excitation of fractal clusters generates dipolar eigenmodes which are extremely localized within areas much smaller than the wavelength. The localization occurs due to the fractal morphology and accounts for the very high local fields leading to the huge enhancement of various optical effects. In particular, Rayleigh and Raman light scattering and, especially, nonlinear optical processes, such as 2-photon photoemission and degenerate four-wave mixing, are strongly enhanced in fractal clusters. The spatial distribution of the modes shows the frequency and polarization selectivity.


1976 ◽  
Vol 18 (2) ◽  
pp. 228-229
Author(s):  
F. De Martini ◽  
G. Giuliani ◽  
P. Mataloni ◽  
E. Palange ◽  
Y.R. Shen

1977 ◽  
Vol 38 (21) ◽  
pp. 1223-1226 ◽  
Author(s):  
F. DeMartini ◽  
M. Colocci ◽  
S. E. Kohn ◽  
Y. R. Shen

Author(s):  
T. J. Constant ◽  
S. M. Hornett ◽  
D. E. Chang ◽  
E. Hendry

Recently, we demonstrated an all-optical coupling scheme for plasmons, which takes advantage of the intrinsic nonlinear optical response of graphene. Frequency mixing using free-space, visible light pulses generates surface plasmons in a planar graphene sample, where the phase matching condition can define both the wavevector and energy of surface waves and intraband transitions. Here, we also show that the plasmon generation process is strongly intensity-dependent, with resonance features washed out for absorbed pulse fluences greater than 0.1 J m −2 . This implies a subtle interplay between the nonlinear generation process and sample heating. We discuss these effects in terms of a non-equilibrium charge distribution using a two-temperature model. This article is part of the themed issue ‘New horizons for nanophotonics’.


2018 ◽  
Vol 9 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Yizhi Wang ◽  
Zhongyuan Guo ◽  
Jie You ◽  
Zhen Zhang ◽  
Xin Zheng ◽  
...  

Author(s):  
J.M. Dela Cruz ◽  
I. Pastirk ◽  
V.V. Lozovoy ◽  
K.A. Walowicz ◽  
M. Dantus

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