FS-CFEL-2

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2018-06-22
14:20
[PUBDB-2018-02363] Contribution to a conference proceedings/Contribution to a book
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High power offset-free ultrafast mid-IR source harnessing SPM-enabled spectral selection
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.SF1N.6
CLEO: Science and Innovations, CLEO SI, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
OSA Washington, D.C. , SF1N.6 () [10.1364/CLEO_SI.2018.SF1N.6]  GO
We demonstrate a novel fiber approach for power scaling difference-frequency-generation based ultrafast mid-IR laser sources that are tunable from 7.4 μm to 16.8 μm with up to 5.3-mW average power at 9.3 μm..
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2018-06-22
14:14
[PUBDB-2018-02362] Contribution to a conference proceedings/Contribution to a book
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Strong-field polarization-state control of higher harmonics generated in crystalline solids
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_QELS.2018.FF3P.5
CLEO: QELS_Fundamental Science, CLEO QELS, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
OSA Washington, D.C. , FF3P.5 () [10.1364/CLEO_QELS.2018.FF3P.5]  GO
We demonstrate that the polarization states of higher harmonics emitted from crystalline solids (here silicon, quartz) are determined by both crystal symmetry and nonperturbative dynamics, opening the door to strong-field control of the harmonics’ polarization states..
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2018-06-22
14:05
[PUBDB-2018-02360] Contribution to a conference proceedings/Contribution to a book
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Segmented Terahertz driven device for ultrashort electron acceleration, compression, focusing and streaking
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.SM4A.4
CLEO: Science and Innovations, CLEO SI, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
OSA Washington, D.C. , SM4A.4 () [10.1364/CLEO_SI.2018.SM4A.4]  GO
We present a novel THz based device (STEAM) capable of performing multiple high-field operations of electron acceleration, compression, focusing and streaking..
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2018-06-22
13:42
[PUBDB-2018-02359] Contribution to a conference proceedings/Contribution to a book
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Excitation wavelength optimization of harmonic generation microscopy in human skin enabled by fiber-based femtosecond source tunable in 1.15-1.35 µm
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_AT.2018.AM1J.2
CLEO: Applications and Technology, CLEO AT, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
OSA Washington, D.C. , AM1J.2 () [10.1364/CLEO_AT.2018.AM1J.2]  GO
We demonstrate a fiber-based tunable femtosecond source covering 1.15–1.35 μm based on self-phase modulation enabled spectral selection, which allows us to optimize the excitation wavelength for harmonic generation imaging in ex vivo human skin..
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2018-06-22
13:33
[PUBDB-2018-02358] Contribution to a conference proceedings/Contribution to a book
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Linear-Field Particle Acceleration in Free Space by Spatiotemporally Structured Laser Pulses
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_AT.2018.JF1C.5
CLEO: QELS_Fundamental Science 2018, CLEO QELS, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
OSA Washington, D.C. , JF1C.5 () [10.1364/CLEO_AT.2018.JF1C.5]  GO
We show that net energy transfer via linear-field forces, between a laser pulse and a bunch of multiple interacting electrons, can be realized in unbounded free space by engineering the spatiotemporal structure of light..
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2018-06-22
13:25
[PUBDB-2018-02357] Contribution to a conference proceedings/Contribution to a book
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Sub-Cycle Effects in Carrier-Envelope-Phase-Sensitive Photoemission from Plasmonic Nanoparticles
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_QELS.2018.FF3D.4
CLEO: QELS_Fundamental Science, CLEO QELS, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
OSA Washington, D.C. , FF3D.4 () [10.1364/CLEO_QELS.2018.FF3D.4]  GO
We study carrier-envelope-phase-sensitive (CEP-sensitive) photoemission from plasmonic nanoparticles illuminated with few-cycle laser pulses of varying intensity. The CEP- sensitive photocurrent exhibits antiresonant-like behavior due to competing emission from different optical half-cycles..
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2018-06-22
13:03
[PUBDB-2018-02355] Contribution to a conference proceedings/Contribution to a book
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High-Order Harmonic Generation from Solids Dressed by an Intense Terahertz Field
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_QELS.2018.FM3F.3
CLEO: QELS_Fundamental Science, CLEO QELS, San Jose, CalinforniaSan Jose, Calinfornia, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
Washington, D.C., USA : OSA, OSA Terchnical Digest (online) FM3F.3, 2 pp. () [10.1364/CLEO_QELS.2018.FM3F.3]  GO
Using an intense transient terahertz electric field, we observe the appearance of even-order harmonics in silicon, normally forbidden in centrosymmetric crystals. Reducing the symmetry via transient dressing might lead to ultrafast symmetry control in crystals..
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2018-06-22
12:52
[PUBDB-2018-02354] Contribution to a conference proceedings/Contribution to a book
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Simultaneous generation and compression of broadband terahertz pulses in aperiodically poled crystals
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.SM4A.2
CLEO: Science and Innovations, CLEO SI, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
Washington, D.C., USA : OSA, OSA technical digest (online) SM4A.2, 2 pp. () [10.1364/CLEO_SI.2018.SM4A.2]  GO
A non-uniform sequence of pump pulses in aperiodically poled crystals is shown to generate transform-limited terahertz pulses. Tunable, compressed terahertz output with singlestage conversion efficiencies > 2% and pulse energies ~ 10 mJ are predicted..
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2018-06-22
12:36
[PUBDB-2018-02353] Contribution to a conference proceedings/Contribution to a book

THz Driven Accelerators and X-ray Sources
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.STh1N.1
CLEO: Science and Innovations, CLEO SI, San JoseSan Jose, California, 13 May 2018 - 18 May 20182018-05-132018-05-18
Washington, D.C., USA : OSA, OSA technical digest (online) STh1N.1, 2 pp. () [10.1364/CLEO_SI.2018.STh1N.1]  GO
Approaches towards a linear THz accelerator technology are discussed. Theoretical and first experimental results on laser based high energy THz generation, guns, accelerators as well as compact X-ray sources based on these devices are presented..
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2018-06-18
14:39
OpenAccess [PUBDB-2018-02318] Journal Article
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Enhanced high-harmonic generation up to the soft X-ray region driven by mid-infrared pulses mixed with their third harmonic
Optics express 26(13), 16955 - 16968 () [10.1364/OE.26.016955]  GO
We systematically study the efficiency enhancement of high-harmonic generation (HHG) in an Ar gas cell up to the soft X-ray (SXR) range using a two-color laser field composed of 2.1 μm (ω) and 700 nm (3ω) with parallel linear polarization. Our experiment follows the recent theoretical investigations that determined two-color mid-infrared (IR) pulses, mixed with their third harmonic (ω + 3ω), to be close to optimal driving waveforms for enhancing HHG efficiency in the SXR region [Jin et al., Nature Comm. [...]
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