Extended Drude Model for Intraband-Transition-Induced Optical Nonlinearity

2019 ◽  
Vol 11 (6) ◽  
Author(s):  
Heng Wang ◽  
Kang Du ◽  
Chuhao Jiang ◽  
Zhiqiang Yang ◽  
Lixia Ren ◽  
...  
Keyword(s):  
Optical Nonlinearity ◽  
Drude Model ◽  
Intraband Transition

scholarly journals Erratum: Extended Drude Model for Intraband-Transition-Induced Optical Nonlinearity [Phys. Rev. Applied 11, 064062 (2019)]

2020 ◽  
Vol 14 (3) ◽  
Author(s):  
Heng Wang ◽  
Kang Du ◽  
Chuhao Jiang ◽  
Zhiqiang Yang ◽  
Lixia Ren ◽  
...  
Keyword(s):  
Optical Nonlinearity ◽  
Drude Model ◽  
Intraband Transition

FAR INFRARED ABSORPTION IN ULTRAFINE AL PARTICLES DRUDE MODEL VERSUS GOR'KOV-ÉLIASHBERG THEORY

1977 ◽  
Vol 38 (C2) ◽  
pp. C2-93-C2-96 ◽  
Author(s):  
C. G. GRANQVIST ◽  
R. A. BUHRMAN ◽  
J. WYNS ◽  
A. J. SIEVERS
Keyword(s):  
Infrared Absorption ◽  
Far Infrared ◽  
Drude Model ◽  
Eliashberg Theory ◽  
Model Versus

Theoretical Framework of 1,3-Thiazolium-5-Thiolates Mesoionic Compounds: Exploring the Nature of Photophysical Properties and Molecular Nonlinearity

2020 ◽  
Author(s):  
Zeyu Liu ◽  
Shugui Hua ◽  
Tian Lu ◽  
Ziqi Tian
Keyword(s):  
Optical Properties ◽  
Rational Design ◽  
Rayleigh Scattering ◽  
Function Analysis ◽  
Theoretical Calculations ◽  
Photophysical Properties ◽  
Optical Nonlinearity ◽  
Nonlinear Properties ◽  
Photoelectric Performance ◽  
Wave Function Analysis

Inspired by a previous experimental study on the first-order hyperpolarizabilities of 1,3-thiazolium-5-thiolates mesoionic compounds using Hyper-Rayleigh scattering technique, we theoretically investigated the UV-Vis absorption spectra and every order polarizabilities of these mesoionic molecules. Based on the fact that the photophysical and nonlinear properties observed in the experiment can be perfectly replicated, our theoretical calculations explored the essential characteristics of the optical properties of the mesoionic compounds with different electron-donating groups at the level of electronic structures through various wave function analysis methods. The influence of the electron-donating ability of the donor on the optical properties of the molecules and the contribution of the mesoionic ring moiety to their optical nonlinearity are clarified, which have not been reported by any research so far. This work will help people understand the nature of optical properties of mesoionic-based molecules and provide guidance for the rational design of molecules with excellent photoelectric performance in the future.

Synthesis and Third-order Optical Nonlinearity of Mesoporous Au/ZrO2 Thin Films

2012 ◽  
Vol 27 (3) ◽  
pp. 327-331
Author(s):  
Qiang LU ◽  
Fang-Ming CUI ◽  
Chen-Yang WEI ◽  
Zi-Le HUA ◽  
Chang-Qing DONG
Keyword(s):  
Thin Films ◽  
Optical Nonlinearity ◽  
Third Order

scholarly journals Giant enhancement of THz-frequency optical nonlinearity by phonon polariton in ionic crystals

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yao Lu ◽  
Qi Zhang ◽  
Qiang Wu ◽  
Zhigang Chen ◽  
Xueming Liu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Optical Nonlinearity ◽  
Ionic Crystals ◽  
Nonlinear Optical Susceptibility ◽  
Time Resolved ◽  
Light Coupling ◽  
Tremendous Progress ◽  
Fundamental Research ◽  
Ionic Contribution ◽  
Time Resolved Imaging

AbstractThe field of nonlinear optics has grown substantially in past decades, leading to tremendous progress in fundamental research and revolutionized applications. Traditionally, the optical nonlinearity for a light wave at frequencies beyond near-infrared is observed with very high peak intensity, as in most materials only the electronic nonlinearity dominates while ionic contribution is negligible. However, it was shown that the ionic contribution to nonlinearity can be much larger than the electronic one in microwave experiments. In the terahertz (THz) regime, phonon polariton may assist to substantially trigger the ionic nonlinearity of the crystals, so as to enhance even more the nonlinear optical susceptibility. Here, we experimentally demonstrate a giant second-order optical nonlinearity at THz frequency, orders of magnitude higher than that in the visible and microwave regimes. Different from previous work, the phonon-light coupling is achieved under a phase-matching setting, and the dynamic process of nonlinear THz generation is directly observed in a thin-film waveguide using a time-resolved imaging technique. Furthermore, a nonlinear modification to the Huang equations is proposed to explain the observed nonlinearity enhancement. This work brings about an effective approach to achieve high nonlinearity in ionic crystals, promising for applications in THz nonlinear technologies.

Steric Group Design for Enhancement of Optical Nonlinearity in Isoxazolone-Based Crystals and Terahertz-Wave Generation

2021 ◽  
Author(s):  
Mingxiao Gao ◽  
Jiaxin Zhang ◽  
Xinyuan Zhang ◽  
Degang Xu ◽  
Zhanggui Hu ◽  
...  
Keyword(s):  
Optical Nonlinearity ◽  
Terahertz Wave ◽  
Wave Generation ◽  
Group Design

Synthetization and optical nonlinearity investigation of novel Fe3O4@Ti3C2 MXene hybrid nanomaterials from 1 to 2 μm

2020 ◽  
Author(s):  
Tong Zhang ◽  
Hongwei Chu ◽  
Dong Li ◽  
Ying Li ◽  
Shengzhi Zhao ◽  
...  
Keyword(s):  
Strong Interaction ◽  
Optical Nonlinearity ◽  
Hybrid Nanomaterials ◽  
Comprehensive Investigation ◽  
Hybrid Nanomaterial ◽  
Morphology And Structure

In the present work, we synthesize a Fe3O4@Ti3C2 MXene hybrid nanomaterial. Comprehensive investigation on the morphology and structure of the prepared Fe3O4@Ti3C2 MXene demonstrates the strong interaction between Ti3C2 MXene...

Optical properties of benzene and derivatives by the single beam thermal lens technique

2017 ◽  
Vol 26 (02) ◽  
pp. 1750025 ◽  
Author(s):  
M. K. Biswas ◽  
P. K. Das ◽  
E. Hoque ◽  
S. M. Sharafuddin ◽  
S. K. Das ◽  
...  
Keyword(s):  
Thermal Lens ◽  
Continuous Wave ◽  
Refractive Index Change ◽  
Optical Nonlinearity ◽  
Index Change ◽  
Single Beam ◽  
Cw Laser ◽  
Ion Laser ◽  
Benzene Toluene ◽  
Long Pulse

The present work studies the optical nonlinearity exhibited by the material (for Continuous Wave (CW) laser or long pulse) due to the change in thermal properties of the material on illumination. Thermal lens (TL) technique has been used to measure the refractive index change due to the formation of TL along with other thermo-optic properties of the material in solution. A CW Ar-ion laser has been used as light source and the laser beam was chopped at 25[Formula: see text]Hz frequency to obtain 12[Formula: see text]ms pulse to observe the formation of the TL within the sample. The [Formula: see text] value have been calculated by the TL technique for Benzene, Toluene and Dimethylaniline (DMA) in toluene and Benzene. The [Formula: see text] value is found to be in the order of 10[Formula: see text] to 10[Formula: see text][Formula: see text]cm2[Formula: see text]W[Formula: see text].

Third-order optical nonlinearity of niobium-rich lithium niobate thin films

2021 ◽  
Vol 114 ◽  
pp. 110914
Author(s):  
Luying Yin ◽  
Jie Jiang ◽  
Yanyan Huo ◽  
Shuyun Wang ◽  
Tingyin Ning
Keyword(s):  
Thin Films ◽  
Lithium Niobate ◽  
Optical Nonlinearity ◽  
Third Order
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