Results 1 to 10 of about 5,776 (70)

“Amplified Spontaneous Emission” in Micro- and Nanolasers

Atoms, 2021
Amplified Spontaneous Emission is ubiquitous in systems with optical gain and is responsible for many opportunities and shortcomings. Its role in the progression from the simplest form of thermal radiation (single emitter spontaneous emission) all the ...
Gian Luca Lippi
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Unresonant interaction of laser beams with microdroplets [PDF]

Journal of the European Optical Society-Rapid Publications, 2012
The interaction of distilled water droplets (volumes of 3-4 µl) with pulsed laser beams emitted at 532 nm is described. At 532 nm the distilled water absorption is very low and the interaction of a water droplet with the laser radiation is dominated by ...
Pascu M. L., Popescu G. V., Ticos C. M., Andrei I. R.   +3 more
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Analysis of the Effect of Pulse Width on Nonlinear Thomson Scattering from an Applied Magnetic Field

Applied Sciences, 2023
The effects of magnetic fields on electron dynamics, spatially radiated power, and radiation spectra in tightly focused circularly polarized laser pulses are studied in detail. The laser wavelength λ0=1 μm.
Haokai Wang, Feiyang Gu, Yi Zhang, Yubo Wang, Youwei Tian   +4 more
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Monochromatic light measurement via geometric phase and Fourier-transform spectroscopy method

Scientific Reports, 2022
The paper introduces a method for the measurement of monochromatic light using the geometric phase shift in a polarizing interferometer and applying the Fourier transform spectroscopy method.
Florin Garoi, Ionut Nicolae, Petronela Prepelita   +2 more
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Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity

Solar-Terrestrial Physics, 2022
In this paper, we examine a torsional Alfvén wave produced by periodic plasma bunches in a magnetized plasma flux tube. A new effect has been revealed: the wave is generated not only during the action of bunches, but also for a long time after the ...
Tishchenko V. N., Berezutsky A. G., Dmitrieva L. R., Miroshnichenko I. B., Shaikhislamov I. F.   +4 more
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Controlling H3+ Formation From Ethane Using Shaped Ultrafast Laser Pulses

Frontiers in Physics, 2021
An adaptive learning algorithm coupled with 3D momentum-based feedback is used to identify intense laser pulse shapes that control H3+ formation from ethane.
Tiana Townsend, Charles J. Schwartz, Bethany Jochim, Kanaka Raju P., Kanaka Raju P., T. Severt, Naoki Iwamoto, J. L. Napierala, Peyman Feizollah, S. N. Tegegn, A. Solomon, S. Zhao, K. D. Carnes, I. Ben-Itzhak, E. Wells   +14 more
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Valery Viktorovich Tuchin (On the 80th anniversary) [PDF]

Известия Саратовского университета. Новая серия: Физика
Background and Objectives: A brief biography of Valery Tuchin, head of Optics and Biophotonics Department of Saratov State University, Doctor of Physical and Mathematical Sciences, Professor, Corresponding Member of the Russian Academy of Sciences is ...
Genina, Elina Alekseevna, Sinichkin, Yury Petrovich   +1 more
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ML-Based Analysis of Particle Distributions in High-Intensity Laser Experiments: Role of Binning Strategy

Entropy, 2020
When entering the phase of big data processing and statistical inferences in experimental physics, the efficient use of machine learning methods may require optimal data preprocessing methods and, in particular, optimal balance between details and noise.
Yury Rodimkov, Evgeny Efimenko, Valentin Volokitin, Elena Panova, Alexey Polovinkin, Iosif Meyerov, Arkady Gonoskov   +6 more
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Non-destructive methods for fruit quality evaluation

Scientific Reports, 2021
This work studies the evolution in time of several varieties of apples with application in quality storage maintenance. Two different methods were used to evaluate long-stored apples for better sorting and degradation assessment.
Ana-Maria Bratu, Cristina Popa, Mihaela Bojan, Petre Catalin Logofatu, Mioara Petrus   +4 more
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Enhanced laser absorption from radiation pressure in intense laser plasma interactions

New Journal of Physics, 2017
The reflectivity of a short-pulse laser at intensities of $2\times {10}^{21}\,{\mathrm{Wcm}}^{-2}$ with ultra-high contrast ( ${10}^{-15}$ ) on sub-micrometer silicon nitride foils was studied experimentally using varying polarizations and target ...
F Dollar, C Zulick, A Raymond, V Chvykov, L Willingale, V Yanovsky, A Maksimchuk, A G R Thomas, K Krushelnick   +8 more
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