Role of nanocrystal morphology on the third order non-linear response of Cu:Al/sub 2/O/sub 3/ nanocomposite films

2002 ◽  
Author(s):  
R. del Coso ◽  
J. Olivares ◽  
J.M. Requejo ◽  
A. Suarez-Garcia ◽  
J. Gonzalo ◽  
...  
Keyword(s):  
Linear Response ◽  
Nanocomposite Films ◽  
Third Order ◽  
The Third ◽  
Non Linear

scholarly journals A Unified Mathematical Formalism for First to Third Order Dielectric Response of Matter: Application to Surface-Specific Two-Colour Vibrational Optical Spectroscopy

Symmetry ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 153 ◽  
Author(s):  
Christophe Humbert ◽  
Thomas Noblet
Keyword(s):  
Dielectric Response ◽  
Structure And Properties ◽  
Linear Optics ◽  
Third Order ◽  
Mathematical Functions ◽  
Sum Frequency ◽  
Non Linear Optics ◽  
Non Linear ◽  
Light Excitation

To take advantage of the singular properties of matter, as well as to characterize it, we need to interact with it. The role of optical spectroscopies is to enable us to demonstrate the existence of physical objects by observing their response to light excitation. The ability of spectroscopy to reveal the structure and properties of matter then relies on mathematical functions called optical (or dielectric) response functions. Technically, these are tensor Green’s functions, and not scalar functions. The complexity of this tensor formalism sometimes leads to confusion within some articles and books. Here, we do clarify this formalism by introducing the physical foundations of linear and non-linear spectroscopies as simple and rigorous as possible. We dwell on both the mathematical and experimental aspects, examining extinction, infrared, Raman and sum-frequency generation spectroscopies. In this review, we thus give a personal presentation with the aim of offering the reader a coherent vision of linear and non-linear optics, and to remove the ambiguities that we have encountered in reference books and articles.

The third-order polarizability γ of C60: The role of low-lying two-electron excited singlet states Ag and Hg

2000 ◽  
Vol 112 (15) ◽  
pp. 6603-6607 ◽  
Author(s):  
Yasushi Nomura ◽  
Takashi Miyamoto ◽  
Toshiki Hara ◽  
Susumu Narita ◽  
Tai-ichi Shibuya
Keyword(s):  
Excited Singlet ◽  
Third Order ◽  
The Third ◽  
Singlet States ◽  
Excited Singlet States

Wavelength dependence of the third order non-linear coefficient in hydrothermally grown ZnO crystals

2004 ◽  
Vol 1 (4) ◽  
pp. 997-1000 ◽  
Author(s):  
A. Zappettini ◽  
F. D'Amore ◽  
S. M. Pietralunga ◽  
A. Terio ◽  
M. Martinelli ◽  
...  
Keyword(s):  
Wavelength Dependence ◽  
Third Order ◽  
Linear Coefficient ◽  
The Third ◽  
Non Linear

scholarly journals The Third Order in the Underground: Lay Organizations of the Ukrainian Greek Catholic Church in Precarpathian Region in the 1970s-1980s

2014 ◽  
Vol 1 (4) ◽  
pp. 73-82
Author(s):  
Oleg Zhernokleyev
Keyword(s):  
Catholic Church ◽  
Spiritual Life ◽  
Spiritual Practices ◽  
Third Order ◽  
The Third ◽  
Soviet Time ◽  
Structure And Activity

The paper highlights the role of communities of monks and nuns (the Third Orders) inthe structure and activity of the Ukrainian Greek Catholic Church (UGCC), which functionedunderground. It is emphasized that the historical roots of the Third Order are traced back to the13th century when spiritual life of specific lay communities was regulated by the Franciscan andthe Dominican Orders, and later, by the Carmelite Order. Between 1900 and 1930s lay communitiesof the UGCC became noticeably active. A characteristic example of their activity is the well knownRules for laypersons of the Basilian Order drawn by Metropolitan Archbishop Andrey Sheptytsky.In the 1970s (the Soviet time, when the UGCC worked underground), there appeared theRedemptorist and the Basilian Third Orders in Ivano-Frankivsk Oblast. Their members kept insafety different cult objects, held underground Divine Services, meetings, had spiritual practices,did catechesis, etc. On the whole, these lay communities had played an important role in theUGCC underground activity up till the late 1980s

scholarly journals Nonlinear Spectroscopy in the Condensed Phase: The Role of Duschinsky Rotations and Third Order Cumulant Contributions

2020 ◽  
Author(s):  
Tim Zuehlsdorff ◽  
Hanbo Hong ◽  
Liang Shi ◽  
Christine Isborn
Keyword(s):  
Excited State ◽  
Condensed Phase ◽  
Nonlinear Optical ◽  
Order Term ◽  
Optical Spectra ◽  
Cumulant Expansion ◽  
Third Order ◽  
The Third ◽  
Mode Mixing

First-principles modeling of nonlinear optical spectra in the condensed phase is highly challenging because both environment and vibronic interactions can play a large role in determining spectral shapes and excited state dynamics. Here, we compute two dimensional electronic spectroscopy (2DES) signals based on a cumulant expansion of the energy gap fluctuation operator, with a specific focus on analyzing mode mixing effects introduced by the Duschinsky rotation and the role of the third order term in the cumulant expansion for both model and realistic condensed phase systems. We show that for a harmonic model system, the third order cumulant correction captures effects introduced by a mismatch in curvatures of ground and excited state potential energy surfaces, as well as effects of mode mixing. We also demonstrate that 2DES signals can be accurately reconstructed from purely classical correlation functions using quantum correction factors. We then compute nonlinear optical spectra for the Nile red and Methylene blue chromophores in solution, assessing the third order cumulant contribution for realistic systems. We show that the third order cumulant correction is strongly dependent on the treatment of the solvent environment, revealing the interplay between environmental polarization and the electronic-vibrational coupling.

scholarly journals Nonlinear Spectroscopy in the Condensed Phase: The Role of Duschinsky Rotations and Third Order Cumulant Contributions

2020 ◽  
Author(s):  
Tim Zuehlsdorff ◽  
Hanbo Hong ◽  
Liang Shi ◽  
Christine Isborn
Keyword(s):  
Excited State ◽  
Condensed Phase ◽  
Nonlinear Optical ◽  
Order Term ◽  
Optical Spectra ◽  
Cumulant Expansion ◽  
Third Order ◽  
The Third ◽  
Mode Mixing

First-principles modeling of nonlinear optical spectra in the condensed phase is highly challenging because both environment and vibronic interactions can play a large role in determining spectral shapes and excited state dynamics. Here, we compute two dimensional electronic spectroscopy (2DES) signals based on a cumulant expansion of the energy gap fluctuation operator, with a specific focus on analyzing mode mixing effects introduced by the Duschinsky rotation and the role of the third order term in the cumulant expansion for both model and realistic condensed phase systems. We show that for a harmonic model system, the third order cumulant correction captures effects introduced by a mismatch in curvatures of ground and excited state potential energy surfaces, as well as effects of mode mixing. We also demonstrate that 2DES signals can be accurately reconstructed from purely classical correlation functions using quantum correction factors. We then compute nonlinear optical spectra for the Nile red and Methylene blue chromophores in solution, assessing the third order cumulant contribution for realistic systems. We show that the third order cumulant correction is strongly dependent on the treatment of the solvent environment, revealing the interplay between environmental polarization and the electronic-vibrational coupling.

scholarly journals The role of orthopedic surgery in the third-order emergency hospital of Kurume University.

1984 ◽  
Vol 33 (1) ◽  
pp. 283-286
Author(s):  
Osamu Sugiyama ◽  
Kanichiro Kiyonaga ◽  
Masaki Miyazaki ◽  
Koji Tanaka ◽  
Shiro Tahira ◽  
...  
Keyword(s):  
Orthopedic Surgery ◽  
Third Order ◽  
Emergency Hospital ◽  
The Third
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