Search Results - "Trofimov, Vyacheslav A."

A Possible Way for the Detection and Identification of Dangerous Substances in Ternary Mixtures Using THz Pulsed Spectroscopy by Trofimov, Vyacheslav A, Varentsova, Svetlana A

“…We discuss an effective tool for the detection and identification of substances in ternary mixtures with similar spectral properties using a broadband…”
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Frequency down-conversion based on optical cascading process—New effective way for generation of far infrared or THz radiation by Trofimov, Vyacheslav A, Kharitonov, Dmitry M, Fedotov, Mikhail V

“…Infrared and THz optics has many promising practical applications such as in spectroscopy, diagnostic, optical metrology, sensing, and many others. Due to…”
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Generalized nonlinear Schrödinger equations describing the Second Harmonic Generation of femtosecond pulse, containing a few cycles, and their integrals of motion by Trofimov, Vyacheslav A, Stepanenko, Svetlana, Razgulin, Alexander

“…An interaction of laser pulse, containing a few cycles, with substance is a modern problem, attracting attention of many researches. The frequency conversion…”
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High effective time-dependent THz spectroscopy method for the detection and identification of substances with inhomogeneous surface by Trofimov, Vyacheslav A, Varentsova, Svetlana A

“…We discuss an effective time-dependent THz spectroscopy method for the detection and identification of a substance with an inhomogeneous surface using a…”
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Implicit finite-difference schemes, based on the Rosenbrock method, for nonlinear Schrödinger equation with artificial boundary conditions by Trofimov, Vyacheslav A, Trykin, Evgeny M

“…We investigate the effectiveness of using the Rosenbrock method for numerical solution of 1D nonlinear Schrödinger equation (or the set of equations) with…”
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Detection and identification of drugs under real conditions by using noisy terahertz broadband pulse by Trofimov, Vyacheslav A, Varentsova, Svetlana A

“…We discuss an effective method for detecting and identifying drugs using a high-noise terahertz (THz) signal. We add a noisy THz signal obtained in real…”
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Selective appearance of several laser-induced periodic surface structure patterns on a metal surface using structural colors produced by femtosecond laser pulses by Yao, Jianwu, Zhang, Chengyun, Liu, Haiying, Dai, Qiaofeng, Wu, Lijun, Lan, Sheng, Gopal, Achanta Venu, Trofimov, Vyacheslav A., Lysak, Tatiana M.

“…► Deep and uniform ripples can be induced on stainless steel surface by scanning femtosecond laser with an optimized energy density and scanning speed. ► Vivid…”
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An Effective Method for Substance Detection Using the Broad Spectrum THz Signal: A "Terahertz Nose" by Trofimov, Vyacheslav A, Varentsova, Svetlana A

“…We propose an effective method for the detection and identification of dangerous substances by using the broadband THz pulse. This pulse excites, for example,…”
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Research on the Warping and Dross Formation of an Overhang Structure Manufactured by Laser Powder Bed Fusion by Lin, Pengcheng, Wang, Meng, Trofimov, Vyacheslav A., Yang, Yongqiang, Song, Changhui

“…Warping and dross formation are the main defects of an overhang structure formed by laser powder bed fusion. In order to study these defects, a seven−shaped…”
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Essential Limitations of the Standard THz TDS Method for Substance Detection and Identification and a Way of Overcoming Them by Trofimov, Vyacheslav A, Varentsova, Svetlana A

“…Low efficiency of the standard THz TDS method of the detection and identification of substances based on a comparison of the spectrum for the signal under…”
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Spurious Absorption Frequency Appearance Due to Frequency Conversion Processes in Pulsed THz TDS Problems by Trofimov, Vyacheslav A, Wang, Nan-Nan, Qiu, Jing-Hui, Varentsova, Svetlana A

“…The appearance of the spurious absorption frequencies caused by the frequency conversion process at the broadband THz pulse propagation in a medium is…”
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Conservative finite-difference scheme for the problem of THz pulse interaction with multilevel layer covered by disordered structure based on the density matrix formalism and 1D Maxwell's equation by Trofimov, Vyacheslav A, Varentsova, Svetlana A, Zakharova, Irina G, Zagursky, Dmitry Yu

“…On the basis of the Crank-Nicolson method, we develop a conservative finite-difference scheme for investigation of the THz pulse interaction with a multilevel…”
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High Efficiency Third-Harmonic Generation in a Medium with Quadratic Susceptibility Due to Cubic-like Nonlinearity Caused by Cascaded Second-Harmonic Generation by Trofimov, Vyacheslav A., Kharitonov, Dmitry M., Fedotov, Mikhail V., Yang, Yongqiang, Wang, Di, Tai, Zhiheng

“…Third-harmonic generation (THG) is of interest for its various applications. We propose using the cascaded second-harmonic generation (SHG) to implement the…”
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Aberrated surface soliton formation in a nonlinear 1D and 2D photonic crystal by Trofimov, Vyacheslav A, Lysak, Tatiana M, Trykin, Evgenii M

“…We discuss a novel type of surface soliton-aberrated surface soliton-appearance in a nonlinear one dimensional photonic crystal and a possibility of this…”
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The Anomalous Influence of Spectral Resolution on Pulsed THz Time Domain Spectroscopy under Real Conditions by Trofimov, Vyacheslav A, Varentsova, Svetlana A

“…We have studied the spectral resolution influence on the accuracy of the substance detection and identification at using a broadband THz pulse measured under…”
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Substance Detection and Identification Using Frequency Doubling of the THz Broadband Pulse by Trofimov, Vyacheslav A., Varentsova, Svetlana A., Yang, Yongqiang, Cai, Zihao

“…We propose and discuss an effective tool for substance detection and identification using a broadband THz pulse that is based on frequency conversion near the…”
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Frequency Down-Conversion of Optical Pulse to the Far Infrared and THz Frequency Ranges Due to the Cascading Process in a Medium with a Quadratic Nonlinear Response by Trofimov, Vyacheslav A., Kharitonov, Dmitry M., Fedotov, Mikhail V., Yang, Yongqiang

“…Difference-frequency generation is a well-known method of obtaining IR and THz radiation. It has many practical applications, such as sensing, optical…”
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New Possibilities of Substance Identification Based on THz Time Domain Spectroscopy Using a Cascade Mechanism of High Energy Level Excitation by Trofimov, Vyacheslav A, Varentsova, Svetlana A, Zakharova, Irina G, Zagursky, Dmitry Yu

“…Using an experiment with thin paper layers and computer simulation, we demonstrate the principal limitations of standard Time Domain Spectroscopy (TDS) based…”
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Asymmetric femtosecond laser ablation of silicon surface governed by the evolution of surface nanostructures by Zhang, Cheng-Yun, Yao, Jian-Wu, Li, Chang-Qing, Dai, Qiao-Feng, Lan, Sheng, Trofimov, Vyacheslav A, Lysak, Tatiana M

“…The femtosecond laser ablation of silicon surface near the ablation threshold was investigated and the preferential ablation along different directions was…”
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Detection and Identification of a Substance with an Inhomogeneous Surface Using the Effective Time-Dependent THz Spectroscopy Method and Emission Frequency Up-Conversion by Trofimov, Vyacheslav A., Varentsova, Svetlana A., Yang, Yongqiang

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