Two-photon absorption spectrum of silver nanoparticles

2012 ◽  
Vol 285 (24) ◽  
pp. 5420-5424 ◽  
Author(s):  
B. Bhushan ◽  
T. Kundu ◽  
B.P. Singh
Keyword(s):  
Silver Nanoparticles ◽  
Absorption Spectrum ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals Nonlinear Absorption and Ultrafast Dynamics of Ag Nanoparticle

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 233
Author(s):  
Jijuan Jiang ◽  
Jun Wang ◽  
Tong Wu ◽  
Yachen Gao
Keyword(s):  
Silver Nanoparticles ◽  
Time Constant ◽  
Laser Intensity ◽  
Photon Absorption ◽  
Saturable Absorption ◽  
Phonon Coupling ◽  
Saturated Absorption ◽  
Coupling Process ◽  
Two Photon Absorption ◽  
Two Photon

Resonant nonlinear optical absorption of silver nanoparticles was studied experimentally via open aperture Z-scan using 130 fs, 400 nm laser pulses. Experimental results show that, at low laser intensity, silver nanoparticles can exhibit saturated absorption. While at high laser intensity, it shows reverse saturated absorption. The saturable absorption is explained in terms of ground state plasmon bleaching, while the reverse saturable absorption is believed to be from two-photon absorption. Saturable optical intensity and two-photon absorption coefficient were obtained to be 1.3×1010 W/m2 and 3.3×10−10 m/W, respectively. The energy relaxation process of Ag nanoparticles after laser excitation was studied via pump-probe technique at 400 nm. Experimental results demonstrated that energy relaxation included electron-phonon coupling process with time constant τ1=(713±50) fs, and phonon-phonon coupling process with time constant τ2=(25.2±3) ps, respectively.

Intensity ratios of ^2D_5/2,3/2 ← ^2S doublets in the two-photon absorption spectrum of Rb and Cs

1984 ◽  
Vol 9 (3) ◽  
pp. 82 ◽  
Author(s):  
F. Arqueros ◽  
P. E. LaRocque ◽  
M. S. O’Sullivan ◽  
B. P. Stoicheff
Keyword(s):  
Absorption Spectrum ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Intensity Ratios

Two-photon absorption spectrum of ZnS

1968 ◽  
Vol 28 (4) ◽  
pp. 305-306 ◽  
Author(s):  
K. Park ◽  
H.S. Waff
Keyword(s):  
Absorption Spectrum ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Doppler-free two-photon absorption spectrum of rubidium

1979 ◽  
Vol 57 (12) ◽  
pp. 2143-2154 ◽  
Author(s):  
B. P. Stoicheff ◽  
E. Weinberger
Keyword(s):  
Absorption Spectrum ◽  
Hyperfine Structure ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Quantum Defects ◽  
Ionization Limit

Doppler-free, two-photon spectroscopy has been used to investigate the transitions n2S ← 52S and n2D ← 52S of atomic rubidium, from n = 9 to 116 and n = 7 to 124, respectively, only 7.3 cm−1 from the ionization limit. Wavelengths of these transitions have been measured to an accuracy of 1 part in 107, and series formulae computed for term values and quantum defects. Hyperfine structure splittings in the 92S to 132S levels have also been measured.

Two photon absorption spectrum ofp-dichlorobenzene

Pramana ◽  
1995 ◽  
Vol 45 (3) ◽  
pp. 271-278
Author(s):  
I B Singh ◽  
S B Rai ◽  
D K Rai
Keyword(s):  
Absorption Spectrum ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Two-photon absorption spectrum of 3-butoxycarbonylmethylurethane polydiacetylene thin films

1998 ◽  
Vol 108 (10) ◽  
pp. 4319-4323 ◽  
Author(s):  
GianPiero Banfi ◽  
Davide Fortusini ◽  
Paolo Dainesi ◽  
Daniela Grando ◽  
Stefano Sottini
Keyword(s):  
Thin Films ◽  
Absorption Spectrum ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

One and two photon absorption spectrum of Mn 4+ in trigonal Cs 2 TiF 6

1994 ◽  
Vol 60-61 ◽  
pp. 684-687 ◽  
Author(s):  
C. Campochiaro ◽  
C.D. Flint ◽  
Z. Hasan ◽  
G. Hollingsworth ◽  
N.B. Manson ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon
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