Post-compression of femtosecond laser pulses using self-phase modulation: from kilowatts to petawatts in 40 years

Хазанов, Е. А.

doi:10.1070/qel18001

Cited by 46 publications

(22 citation statements)

References 235 publications

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“…Obtaining ultrashort electromagnetic pulses of femto-and attosecond duration in recent decades is one of the central topics of modern optics [1][2][3][4]. Subfemtosecond pulses are actively used to study and control the dynamics of wave packets in matter [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…These studies are of fundamental interest, as they allow answering questions such as the dynamics of electron motion in atoms, molecules and their ionization on such small time scales of the order of tens to hundreds of attoseconds [9][10][11]. But the ultrashort femto-and attosecond pulses obtained in practice contain several oscillation cycles [1][2][3][4]. The ultimate possibility of shortening the duration of light pulses is the generation of single-cycle pulses containing two half-waves of the field of opposite polarity [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Peculiaritie of Polarization Waves Behavior under Excitation of an Extended Resonant Medium by Overlapping Extremely Short Light Pulses

Архипов

Rosanov

2022

Optics and Spectroscopy

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With the coherent interaction of a sequence of extremely short light pulses with a resonant medium (when the duration of the pulses and the delays between them are shorter than the relaxation times of the population difference T1 and polarization T2 of the medium), it is possible to create spatial electromagnetically induced gratings (EMIG) of polarization and population difference in the medium, as well as their ultrafast control. The dynamics of such gratings is of interest in connection with the possibility of ultrafast control over the properties of a medium at times of the order of the pulse duration and their influence on the stability of generation of extremely short pulses in a laser with a short linear cavity. In this paper, based on the numerical solution of the system of Maxwell-Bloch equations, an unusual and interesting possibility of the appearance of narrow and alternating sections in the medium is shown and studied in detail, in which harmonic polarization waves of the medium are formed, propagating in opposite directions relative to neighboring sections. This situation occurs when two extremely short attosecond pulses collide in a two-level resonant medium. Keywords: attosecond pulses, electromagnetically induced gratings, polarization waves.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Peculiaritie of Polarization Waves Behavior under Excitation of an Extended Resonant Medium by Overlapping Extremely Short Light Pulses

Архипов

Rosanov

2022

Optics and Spectroscopy

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“…The post-compression techniques utilized in low-energy laser systems are typically based on photonic crystal fibers [ 5 ] , hollow-core fiber waveguides [ 6 ] and multi-pass cells [ 7 ] . Unfortunately, none of these approaches are well-suited even for sub-J laser pulses [ 8 ] .…”

Section: Introductionmentioning

confidence: 99%

Post-compression of high-energy, sub-picosecond laser pulses

Bleotu

Wheeler²,

Mironov³

et al. 2023

High Pow Laser Sci Eng

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The post-compression technique based on self-phase modulation of high-energy pulses leads to an increase in achievable peak power and intensity. Typically, the pulses considered in experiments have been less than 100 fs in duration. Here, the method is applied to the ELFIE laser system at the LULI facility, for a pulse of 7 J energy and an initial measured duration of 350 fs. A 5 mm thick Fused Silica window and a 2 mm COP polymer were used as optical nonlinear materials. The 9 cm diameter pulse was spectrally broadened to a bandwidth corresponding to 124 fs Fourier-limited pulse duration, then it was partly post-compressed to 200 fs. After measuring the spatial spectra of the beam fluence, a uniform gain factor of 4 increase in the fluctuations over the studied range of frequencies is observed, due to small-scale self-focusing.

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“…The study of the possibility for generating electromagnetic extremely-short pulses (ESP) of femto-and attosecond duration and their interaction with matter is an important part of modern physics, since such pulses are actively used to control the dynamics of ultrafast processes in resonant media [1][2][3][4][5][6][7]. Typically, light pulses obtained in practice have a harmonic shape and contain several field oscillations.…”

Section: Introductionmentioning

confidence: 99%

Nonharmonic Spatial Population Difference Structures Created by Unipolar Rectangular Pulses in a Resonant Medium

Архипов

Пахомов

et al. 2022

Optics and Spectroscopy

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In the case of coherent interaction with a medium of extremely short light pulses (ESPs) having a carrier frequency and harmonic shape (when the pulse durations are shorter than the population relaxation times T1 and polarization relaxation time T2 of the medium), electromagnetically induced gratings (EMIGs) of the population difference, which have a pronounced harmonic dependence on the coordinates, may appear in it. These structures can occur when pulses do not overlap or overlap in the medium. Recently, the possibility of obtaining unipolar electromagnetic pulses in the optical and adjacent ranges of non-harmonic shape, for example, rectangular and triangular, with a duration less or comparable to the duration of the extremely-short pulse in this range, has attracted interest. In this work, using the numerical solution of the system of Maxwell-Bloch equations, we study EMIG formation by rectangular attosecond pulses in a two-level resonant medium. The possibility of inducing an EMIG of a non-harmonic shape in the form of light-induced channels microresonators, (microcavities) with a size of the order of the wavelength of the resonant transition of the medium, whose parameters can be controlled, for example, by the amplitude of the incident pulses, is shown. It has been suggested that it is possible to create an EMIG of a predetermined non-harmonic shape only in the general case of using unipolar pulses. Keywords: attosecond pulses, unipolar pulses, rectangular pulses, electromagnetically induced gratings, polarization waves, light-induced microresonators.

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Post-compression of femtosecond laser pulses using self-phase modulation: from kilowatts to petawatts in 40 years

Cited by 46 publications

References 235 publications

Peculiaritie of Polarization Waves Behavior under Excitation of an Extended Resonant Medium by Overlapping Extremely Short Light Pulses

Peculiaritie of Polarization Waves Behavior under Excitation of an Extended Resonant Medium by Overlapping Extremely Short Light Pulses

Post-compression of high-energy, sub-picosecond laser pulses

Nonharmonic Spatial Population Difference Structures Created by Unipolar Rectangular Pulses in a Resonant Medium

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