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  1. Article ; Online: Temporal contrast enhancement and compression of output pulses of ultra-high power lasers.

    Mironov, S Yu / Starodubtsev, M V / Khazanov, E A

    Optics letters

    2021  Volume 46, Issue 7, Page(s) 1620–1623

    Abstract: The peak power and temporal intensity contrast of powerful femtosecond laser pulses were enhanced simultaneously by broadening the pulse spectrum in transparent dielectrics due to self-phase modulation and subsequent reflection from chirping mirrors with ...

    Abstract The peak power and temporal intensity contrast of powerful femtosecond laser pulses were enhanced simultaneously by broadening the pulse spectrum in transparent dielectrics due to self-phase modulation and subsequent reflection from chirping mirrors with a symmetrical dip in the reflection coefficient in the center of the broadened spectrum. This dip provides almost zero reflection of the pulse pedestal, only slightly distorting the pulse itself.
    Language English
    Publishing date 2021-04-02
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.415430
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Compression of high-power laser pulses using only multiple ultrathin plane plates.

    Mironov, S Yu / Wheeler, J A / Khazanov, E A / Mourou, G A

    Optics letters

    2021  Volume 46, Issue 18, Page(s) 4570–4573

    Abstract: A proposal for additional temporal compression and peak power enhancement of intense (> ...

    Abstract A proposal for additional temporal compression and peak power enhancement of intense (>
    Language English
    Publishing date 2021-09-15
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.438154
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Highly efficient fourth harmonic generation of broadband laser pulses retaining 3D pulse shape.

    Kuzmin, I V / Mironov, S Yu / Martyanov, M A / Potemkin, A K / Khazanov, E A

    Applied optics

    2021  Volume 60, Issue 11, Page(s) 3128–3135

    Abstract: A method for highly efficient fourth harmonic generation (FHG) retaining spatiotemporal intensity distribution of broadband chirped laser pulses is proposed. It is based on the use of pulses with linear frequency chirps of equal absolute magnitudes and ... ...

    Abstract A method for highly efficient fourth harmonic generation (FHG) retaining spatiotemporal intensity distribution of broadband chirped laser pulses is proposed. It is based on the use of pulses with linear frequency chirps of equal absolute magnitudes and opposite signs at the oo-e type noncollinear second harmonic generation. Fourth harmonic generation can by obtained by the classical method, since the second harmonic pulse is narrowband and spectrally limited. A possibility to retain the three-dimensional (3D) structure of the field at FHG with a conversion efficiency ∼60
    Language English
    Publishing date 2021-05-13
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.422601
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Shaping of picosecond laser pulses with THz intensity modulation in the infrared, visible, and ultraviolet ranges.

    Kuzmin, I V / Mironov, S Yu / Martyanov, M A / Potemkin, A K / Khazanov, E A

    Applied optics

    2021  Volume 60, Issue 32, Page(s) 10062–10069

    Abstract: The methods of shaping picosecond laser pulses with periodic intensity modulation tunable in frequency and depth are considered. Schemes for shaping modulated pulses "in-line" and with one output port are proposed. A picosecond modulation of the time ... ...

    Abstract The methods of shaping picosecond laser pulses with periodic intensity modulation tunable in frequency and depth are considered. Schemes for shaping modulated pulses "in-line" and with one output port are proposed. A picosecond modulation of the time envelope for IR laser pulses using a polarization interferometer is demonstrated experimentally. Shaping of modulated laser pulses of the UV range is shown by numerical modeling. The possibility to control the modulation depth of the fourth harmonic under the combined impact of material dispersion and nonlinear conversion in a classical collinear scheme of the fourth harmonic generation without distortion of the 3D pulse shape is demonstrated.
    Language English
    Publishing date 2021-11-11
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.441421
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Laser wakefield acceleration based x ray source using 225-TW and 13-fs laser pulses produced by thin film compression.

    Fourmaux, S / Lassonde, P / Mironov, S Yu / Hallin, E / Légaré, F / Maclean, S / Khazanov, E A / Mourou, G / Kieffer, J C

    Optics letters

    2022  Volume 47, Issue 13, Page(s) 3163–3166

    Abstract: We show that 13-fs laser pulses associated with 225 TW of peak power can be used to produce laser wakefield acceleration (LWFA) and generate synchrotron radiation. To achieve this, 130-TW high-power laser pulses (3.2 J, 24 fs) are efficiently compressed ... ...

    Abstract We show that 13-fs laser pulses associated with 225 TW of peak power can be used to produce laser wakefield acceleration (LWFA) and generate synchrotron radiation. To achieve this, 130-TW high-power laser pulses (3.2 J, 24 fs) are efficiently compressed down to 13 fs with the thin film compression (TFC) technique using large chirped mirrors after propagation and spectral broadening through a 1-mm-thick fused silica plate. We show that the compressed 13-fs laser pulse can be properly focused even if it induces a 10% degradation of the Strehl ratio. We demonstrate the usability of such a laser beam. We observe both an increase of the electron energy and of the betatron radiation critical energy when the pulse duration is reduced to 13 fs compared with the 24-fs case.
    Language English
    Publishing date 2022-07-01
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.459199
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Temporal compression of high-power IR laser pulses in a KDP crystal.

    Mironov, S Yu / Mukhin, I B / Lozhkarev, V V / Potemkin, A K / Martyanov, M A / Kuzmin, I V / Khazanov, E A

    Applied optics

    2022  Volume 61, Issue 20, Page(s) 6033–6037

    Abstract: It is shown that a KDP crystal can be used for temporal compression of powerful pulses of the near-IR range. A method of searching for laser beam and crystal parameters suitable for compression is proposed. Temporal compression of laser pulses at a ... ...

    Abstract It is shown that a KDP crystal can be used for temporal compression of powerful pulses of the near-IR range. A method of searching for laser beam and crystal parameters suitable for compression is proposed. Temporal compression of laser pulses at a central wavelength of 1034 nm from 266 fs to 94 fs during propagation along the optical axis in a 21 cm thick KDP crystal is demonstrated experimentally.
    Language English
    Publishing date 2022-10-03
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.464579
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Upgrading the front end of the petawatt-class PEARL laser facility.

    Mukhin, I B / Glushkov, K A / Soloviev, A A / Shaykin, A A / Ginzburg, V N / Kuzmin, I V / Martyanov, M A / Stukachev, S E / Mironov, S Yu / Yakovlev, I V / Khazanov, E A

    Applied optics

    2023  Volume 62, Issue 10, Page(s) 2554–2559

    Abstract: A new front-end laser system with optical synchronization of chirped femtosecond and pump pulses for the petawatt laser complex PEtawatt pARametric Laser (PEARL) has been developed. The new front-end system provides a broader femtosecond pulse spectrum, ... ...

    Abstract A new front-end laser system with optical synchronization of chirped femtosecond and pump pulses for the petawatt laser complex PEtawatt pARametric Laser (PEARL) has been developed. The new front-end system provides a broader femtosecond pulse spectrum, temporal shaping of the pump pulse, and a significant increase in the stability of the parametric amplification stages of the PEARL.
    Language English
    Publishing date 2023-05-01
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.483533
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Shaping picosecond ellipsoidal laser pulses with periodic intensity modulation for electron photoinjectors.

    Kuzmin, I V / Mironov, S Yu / Gacheva, E I / Potemkin, A K / Khazanov, E A / Krasilnikov, M A / Stephan, F

    Applied optics

    2020  Volume 59, Issue 9, Page(s) 2776–2783

    Abstract: A method for shaping periodic intensity distributions of strongly chirped picosecond laser pulses in the infrared range by periodic phase modulation of the spectrum is proposed. The dependence of the time modulation period and depth on the parameters of ... ...

    Abstract A method for shaping periodic intensity distributions of strongly chirped picosecond laser pulses in the infrared range by periodic phase modulation of the spectrum is proposed. The dependence of the time modulation period and depth on the parameters of periodic phase modulation of the spectrum is analyzed by analytical and numerical methods. It is demonstrated that the intensity distribution structure obtained at second- and fourth-harmonic generation can be retained by introducing an angular chirp. The electron bunch dynamics at the photoinjector test facility at DESY in Zeuthen (PITZ) was modeled numerically using ellipsoidal laser pulses with intensity modulation.
    Language English
    Publishing date 2020-03-26
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.383181
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Retaining 3D shape of picosecond laser pulses during optical harmonics generation.

    Kuzmin, I V / Mironov, S Yu / Gacheva, E I / Poteomkin, A K / Khazanov, E A

    Applied optics

    2018  Volume 58, Issue 10, Page(s) 2678–2686

    Abstract: Collinear and noncollinear sum-frequency generation of broadband laser pulses with angular and frequency chirp is considered. The conditions of minimal distortions of 3D ellipsoidal intensity distribution of triangular chirped femtosecond pulses during ... ...

    Abstract Collinear and noncollinear sum-frequency generation of broadband laser pulses with angular and frequency chirp is considered. The conditions of minimal distortions of 3D ellipsoidal intensity distribution of triangular chirped femtosecond pulses during generation of the second, third, and fourth harmonics of a Ti-Sa laser in LBO, BBO, and KBBF crystals are found using numerical methods. The efficiency of conversion from the fundamental to the fourth harmonic (45%) is higher than to the third harmonic (20%), and the distortions of intensity distribution are less.
    Language English
    Publishing date 2018-11-05
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.58.002678
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Shaping of cylindrical and 3D ellipsoidal beams for electron photoinjector laser drivers.

    Mironov, S Yu / Potemkin, A K / Gacheva, E I / Andrianov, A V / Zelenogorskii, V V / Krasilnikov, M / Stephan, F / Khazanov, E A

    Applied optics

    2016  Volume 55, Issue 7, Page(s) 1630–1635

    Abstract: With the use of spatial light modulators it became possible to implement in experiments the method of controlling the space-time intensity distribution of femtosecond laser pulses stretched to picosecond duration. Cylindrical and quasi-ellipsoidal ... ...

    Abstract With the use of spatial light modulators it became possible to implement in experiments the method of controlling the space-time intensity distribution of femtosecond laser pulses stretched to picosecond duration. Cylindrical and quasi-ellipsoidal intensity distributions were obtained and characterized by means of a 2D spectrograph and a cross-correlator.
    Language English
    Publishing date 2016-03-01
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.55.001630
    Database MEDical Literature Analysis and Retrieval System OnLINE

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