Regularities of nanosecond laser filamentation in the visible and near IR range of waverange (532 and 1562 nm) in a medium with strong optical nonlinearity

2019 ◽  
Author(s):  
D. Apeksimov ◽  
P. Babushkin ◽  
A. Zemlyanov ◽  
Al. Zemlyanov ◽  
Andrey M. Kabanov ◽  
...  
Keyword(s):  
Optical Nonlinearity ◽  
Nanosecond Laser ◽  
Near Ir ◽  
Near Ir Range ◽  
Laser Filamentation

A novel ruthenium(ii) complex for two-photon absorption-based optical power limiting in the near-IR range

2011 ◽  
Vol 13 (38) ◽  
pp. 17304 ◽  
Author(s):  
Mickaël Four ◽  
Didier Riehl ◽  
Olivier Mongin ◽  
Mireille Blanchard-Desce ◽  
Latévi Max Lawson-Daku ◽  
...  
Keyword(s):  
Optical Power ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Near Ir ◽  
Optical Power Limiting ◽  
Near Ir Range

scholarly journals Optimal spectral inversion of atmospheric radiometric measurements in the near-UV to near-IR range: A case study

2002 ◽  
Vol 10 (1) ◽  
pp. 70 ◽  
Author(s):  
Didier Fussen ◽  
Filip Vanhellemont ◽  
Christine Bingen
Keyword(s):  
Radiometric Measurements ◽  
Spectral Inversion ◽  
Near Ir ◽  
Near Ir Range

On the possibility of designing a high-resolution heterodyne spectrometer for near-IR range on the basis of a tunable diode laser

2012 ◽  
Vol 42 (3) ◽  
pp. 244-249 ◽  
Author(s):  
A Yu Klimchuk ◽  
Aleksandr I Nadezhdinskii ◽  
Ya Ya Ponurovskii ◽  
Yu P Shapovalov ◽  
A V Rodin
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
Tunable Diode Laser ◽  
Near Ir ◽  
Heterodyne Spectrometer ◽  
Near Ir Range

scholarly journals Detection of O2 Produced Abiotically on Habitable but Lifeless Planets around M-dwarfs

2012 ◽  
Vol 8 (S293) ◽  
pp. 39-45 ◽  
Author(s):  
Tong Li ◽  
Feng Tian
Keyword(s):  
Radiative Transfer ◽  
Molecular Oxygen ◽  
Uv Spectra ◽  
Radiative Transfer Model ◽  
Transfer Model ◽  
Hitran Database ◽  
M Dwarfs ◽  
Near Ir ◽  
Habitable Zones ◽  
Near Ir Range

AbstractHigh atmospheric abundances of oxygen has been widely considered to be a reliable biosignature for life on exoplanets in the habitable zones of all types of stars. Recently it was proposed that the unique UV spectra of observed planet-hosting M dwarfs could lead to the buildup of molecular oxygen in the atmospheres of habitable but lifeless planets around these stars (Tian et al. 2014). However, the detectability of the accumulated O2 was not modeled. In this work we developed a new line by line radiative transfer model based on HITRAN database and used the model to simulate the reflectivity in the visible and near IR range. We show that abiotically produced and maintained O2 in the 0.2% level is observable at 13105 cm−1 (0.76 μm) with the spectra resolution of 70.

A study of distributed dielectric bragg reflectors for vertically emitting lasers of the near-IR range

2016 ◽  
Vol 42 (10) ◽  
pp. 1049-1053 ◽  
Author(s):  
S. A. Blokhin ◽  
M. A. Bobrov ◽  
A. G. Kuzmenkov ◽  
A. A. Blokhin ◽  
A. P. Vasil’ev ◽  
...  
Keyword(s):  
Bragg Reflectors ◽  
Near Ir ◽  
Emitting Lasers ◽  
Near Ir Range

scholarly journals Nonlinear optical properties of metal-alkanoate liquid crystalline media

2018 ◽  
pp. 89-94
Author(s):  
O. Gridyakina ◽  
H. Bordyuh ◽  
O. Bilous
Keyword(s):  
Ionic Liquid ◽  
Optical Properties ◽  
Liquid Crystals ◽  
Nonlinear Optical ◽  
Nonlinear Response ◽  
Optical Nonlinearity ◽  
Nonlinear Optical Properties ◽  
Nonlinear Susceptibility ◽  
Nanosecond Laser ◽  
Ionic Liquid Crystals

This work presents the analysis of experimental data on studies of optical and nonlinear optical properties of lyotropic ionic liquid crystals of potassium caprylate doped with electrochromic viologen admixtures, and smectic glasses of thermotropic ionic liquid crystals of cobalt alkanoates homologous series (number of carbon atoms in alkanoate chain n = 7, 9, 11) and their multicomponent mixtures. Prior to performing nonlinear optical experiment the optical absorption spectra for all samples were investigated. Laser induced dynamic grating recording under the action of nanosecond laser pulses was realized, observed and analyzed for the proposed absorptive media. It was discovered that studied materials are characterized by cubic optical nonlinearity and have values of cubic nonlinear susceptibility χ(3) and hyperpolarizability γ comparable with the best characteristics of organic dyes. The possible mechanism of nonlinear response in studied systems was considered on the base of obtained data. The nonlinear response mechanism is connected with nonlinear polarization of π-electrons in the field of laser radiation.

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