Cadmium telluride (CdTe) optical properties, refractive index, dielectric constants, two-photon absorption

2005 ◽  
pp. 1-6 ◽  
Author(s):  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Cadmium Telluride ◽  
Dielectric Constants ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Determination of Nonlinear Refractive Index and Two-Photon Absorption Coefficients of New Nanocomposite Materials Based on Biosilicates Using Z-Scan Method

2014 ◽  
Vol 1025-1026 ◽  
pp. 776-781 ◽  
Author(s):  
Dmitriy Proschenko ◽  
Alexandr Mayor ◽  
Oleg Bukin ◽  
Sergey Golik ◽  
Irina Postnova ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Nonlinear Refractive Index ◽  
Nonlinear Optical ◽  
Nanocomposite Materials ◽  
Photon Absorption ◽  
Absorption Coefficients ◽  
Two Photon Absorption ◽  
Two Photon

Nonlinear refractive indexes and two-photon absorption coefficients of new biosilicate nanocomposite materials based on precursor tetrakis (2-hydroxyethyl) orthosilicate (Si-precursor THEOS) were determined by created portative automation measuring complex based on Z-scan technique. Influence of different additives on nonlinear optical properties such media is considered. Energy thresholds of forming filaments and the efficiency of conversion initial radiation in supercontinuum in the range 400-700 nm are considered.

Third-order nonlinear optical properties and two-photon absorption in branched oligothienylenevinylenes

2002 ◽  
Vol 209 (4-6) ◽  
pp. 461-466 ◽  
Author(s):  
I. Fuks-Janczarek ◽  
J-M. Nunzi ◽  
B. Sahraoui ◽  
I.V. Kityk ◽  
J. Berdowski ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Photon Absorption ◽  
Third Order ◽  
Two Photon Absorption ◽  
Two Photon

Computational design of two-photon active organic molecules for infrared responsive materials

2020 ◽  
Vol 8 (29) ◽  
pp. 9867-9873 ◽  
Author(s):  
Robert Zaleśny ◽  
Md. Mehboob Alam ◽  
Paul N. Day ◽  
Kiet A. Nguyen ◽  
Ruth Pachter ◽  
...  
Keyword(s):  
Optical Properties ◽  
Organic Molecules ◽  
Computational Design ◽  
Photon Absorption ◽  
Organic Cations ◽  
Design Rules ◽  
Responsive Materials ◽  
Two Photon Absorption ◽  
Two Photon

Aiming at proposing design rules, the mechanism of two-photon absorption is analyzed in a series of π-conjugated organic cations and their neutral precursors exhibiting aggregation-enhanced optical properties.

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.

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