scholarly journals Nonlinear Refraction and Absorption of Ag29 Nanoclusters: Evidence for Two-Photon Absorption Saturation

2018 ◽  
Vol 122 (32) ◽  
pp. 18682-18689 ◽  
Author(s):  
Albert S. Reyna ◽  
Isabelle Russier-Antoine ◽  
Franck Bertorelle ◽  
Emmanuel Benichou ◽  
Philippe Dugourd ◽  
...  
Keyword(s):  
Nonlinear Refraction ◽  
Photon Absorption ◽  
Absorption Saturation ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals A closer look at two-photon absorption, absorption saturation and nonlinear refraction in gold nanoclusters

RSC Advances ◽  
2016 ◽  
Vol 6 (101) ◽  
pp. 98748-98752 ◽  
Author(s):  
Joanna Olesiak-Banska ◽  
Magdalena Waszkielewicz ◽  
Katarzyna Matczyszyn ◽  
Marek Samoc
Keyword(s):  
Nonlinear Refraction ◽  
Gold Nanoclusters ◽  
Photon Absorption ◽  
Au Nanoclusters ◽  
Absorption Saturation ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Wide Range

We report both the dispersion of nonlinear refraction and two-photon absorption of Au nanoclusters in a wide range of wavelengths.

Two-Photon Absorption, Nonlinear Refraction and Optical Limiting in Semiconductors

2008 ◽  
pp. 404-404-20 ◽  
Author(s):  
EW Van Stryland ◽  
H Vanherzeele ◽  
MA Woodall ◽  
MJ Soileau ◽  
AL Smirl ◽  
...  
Keyword(s):  
Nonlinear Refraction ◽  
Optical Limiting ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals The Influence of Quantum Confinement on Third-Order Nonlinearities in Porous Silicon Thin Films

2018 ◽  
Vol 8 (10) ◽  
pp. 1810 ◽  
Author(s):  
Rihan Wu ◽  
Jack Collins ◽  
Leigh Canham ◽  
Andrey Kaplan
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Quantum Confinement ◽  
Nonlinear Refraction ◽  
Photon Absorption ◽  
Third Order ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Silicon Thin Films ◽  
Gaussian Decomposition

We present an experimental investigation into the third-order nonlinearity of conventional crystalline (c-Si) and porous (p-Si) silicon with Z-scan technique at 800-nm and 2.4- μ m wavelengths. The Gaussian decomposition method is applied to extract the nonlinear refractive index, n 2 , and the two-photon absorption (TPA) coefficient, β , from the experimental results. The nonlinear refractive index obtained for c-Si is 7 ± 2 × 10 − 6 cm 2 /GW and for p-Si is − 9 ± 3 × 10 − 5 cm 2 /GW. The TPA coefficient was found to be 2.9 ± 0.9 cm/GW and 1.0 ± 0.3 cm/GW for c-Si and p-Si, respectively. We show an enhancement of the nonlinear refraction and a suppression of TPA in p-Si in comparison to c-Si, and the enhancement gets stronger as the wavelength increases.

Two-photon absorption and nonlinear refraction of lanthanum sulfide-gallium sulfide glasses

1998 ◽  
Vol 84 (5) ◽  
pp. 2380-2384 ◽  
Author(s):  
Zhong Hua Zhou ◽  
Tadanori Hashimoto ◽  
Hiroyuki Nasu ◽  
Kanichi Kamiya
Keyword(s):  
Nonlinear Refraction ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Gallium Sulfide ◽  
Two Photon ◽  
Lanthanum Sulfide ◽  
Sulfide Glasses

Intensity scan and two photon absorption and nonlinear refraction of C60 in toluene

1996 ◽  
Vol 68 (10) ◽  
pp. 1317-1319 ◽  
Author(s):  
Bahman Taheri ◽  
Huimin Liu ◽  
B. Jassemnejad ◽  
D. Appling ◽  
Richard C. Powell ◽  
...  
Keyword(s):  
Nonlinear Refraction ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Observation of Two-Photon Absorption and Nonlinear Refraction in AlN

2016 ◽  
Vol 33 (10) ◽  
pp. 104201 ◽  
Author(s):  
Meng Zhao ◽  
Chun-Hua Xu ◽  
Wei-Jie Hu ◽  
Wen-Jun Wang ◽  
Li-Wei Guo ◽  
...  
Keyword(s):  
Nonlinear Refraction ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

INVESTIGATION OF NEAR TWO-PHOTON RESONANCE OPTICAL NONLINEARITIES IN Ni(Ac)2[N-(8-QUINOLYL) PYRIDINE-2-CARBOXAMIDE] · 4H2O BY THE Z-SCAN TECHNIQUE

2003 ◽  
Vol 12 (01) ◽  
pp. 81-89 ◽  
Author(s):  
SHENG-LI GUO ◽  
HUI-TIAN WANG ◽  
N. B. MING ◽  
JUN-YONG ZHANG ◽  
ZHI-JIAN GUO
Keyword(s):  
Nonlinear Absorption ◽  
Nonlinear Refraction ◽  
Photon Absorption ◽  
Closed Aperture ◽  
Optical Nonlinearities ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Nonlinear Optical Absorption ◽  
532 Nm ◽  
Photon Resonance

We describe a modified Z-scan technique for the case when nonlinear refraction is accompanied by nonlinear absorption to separately evaluate the nonlinear refraction and the nonlinear absorption by performing straightforward measurements with the aperture removed. We divide the closed aperture (S < 1) normalized Z-scan by a scan with an open aperture (S = 1). With nanosecond scale at a 532 nm wavelength, we first measured the nonlinear optical absorption and refraction coefficients of a solution of Ni(Ac)2[N-(8-quinolyl) pyridine-2-carboxamide] · 4H2O by using the modified Z-scan technique. The nonlinear absorption originates from the near resonant two-photon absorption while the mechanism of the nonlinear refraction is the near resonant two-photon absorption transition enhancement. The linear increasing dependences of the optical nonlinearities on the incident irradiance arise from the population redistribution due to the near resonant two-photon absorption.

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