FS-CFEL-2

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2018-02-06
15:20
OpenAccess [PUBDB-2018-01078] Conference Presentation (Invited)
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Frequency-shifted sources for Terahertz-driven linear electron acceleration
SPIE Photonics West 2018, Meeting locationSan Francisco, CA, USA, 27 Jan 2018 - 1 Feb 20182018-01-272018-02-01  GO
The generation of THz-frequency radiation via nonlinear parametric frequency down-conversion has long been driven by the spectroscopy and imaging communities. As a result, little efforts have been undertaken toward the generation of high energy THz-frequency pulses. [...]
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2018-02-06
11:33
OpenAccess [PUBDB-2018-01075] Journal Article
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Megawatt peak power tunable femtosecond source based on self-phase modulation enabled spectral selection
Optics express 26(3), 3684-3695 (2018) [10.1364/OE.26.003684]  GO
ddc:530
Wavelength widely tunable femtosecond sources can be implemented by optically filtering the leftmost/rightmost spectral lobes of a broadened spectrum due to self-phase modulation (SPM) dominated fiber-optic nonlinearities. We numerically and experimentally investigate the feasibility of implementing such a tunable source inside optical fibers with negative group-velocity dispersion (GVD). [...]
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2018-02-05
14:49
[PUBDB-2018-01055] Dissertation / PhD Thesis
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High field terathertz radiation : Conduits to synchronized hyper spectral systems
267 pp. (2018) = Dissertation, Massachusetts Institute of Technology, 2018
Laser technology has seen significant development since its inception in 1960. After the first experiments of nonlinear phenomena in optics, the development of the mode-locked laser has led to rapid proliferation of the study of nonlinear frequency conversion techniques-enabling the conversion of light from the infra-red, all the way to the soft X-Ray region. [...]

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2018-01-29
11:44
[PUBDB-2018-00894] Contribution to a conference proceedings/Contribution to a book
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A CEP-stable, femtosecond 8.5 μm source based on intrapulse DFG of 2.1 μm pulses
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) : [Proceedings] - IEEE, 2017. - ISBN 978-1-5090-6736-7 - doi:10.1109/CLEOE-EQEC.2017.8086730
Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, CLEO/Europe-EQEC, Meeting locationMünchen, Germany, 25 Jun 2017 - 29 Jun 20172017-06-252017-06-29
Washington, D.C., USA : IEEE, 1 pp. (2017) [http://dx.doi.org/10.1109/CLEOE-EQEC.2017.8086730]  GO
Few-cycle carrier-envelope phase (CEP) stable laser pulses enable the precise control of strong-field electron dynamics, such as high-harmonic generation in gases and solids or electron emission in nano-structures [1]. The intrapulse difference-frequency generation (DFG) pumped by a broadband pulse is a reliable method of producing passively CEP-stable pulses. [...]
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2018-01-23
15:30
OpenAccess [PUBDB-2018-00770] Journal Article
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Octave-spanning coherent supercontinuum generation in silicon on insulator from 1.06 μm to beyond 2.4 μm
Light 7(1), 17131 (2018) [10.1038/lsa.2017.131]  GO
ddc:530
Efficient complementary-metal-oxide-semiconductor-based nonlinear optical devices in the near infrared are in strong demand. Due to two-photon absorption in silicon, however, much nonlinear research is shifting towards unconventional photonics platforms. [...]
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2018-01-18
15:05
OpenAccess [PUBDB-2018-00693] Conference Presentation

Integrated Photonics to the Rescue of Femtosecond Beam Diagnostics
International Beam Instrumentation Conference, IBIC 17, Meeting locationGrand Rapids, Michigan, USA, 20 Aug 2017 - 24 Aug 20172017-08-202017-08-24  GO
Beam instrumentation has always been using results from neighbouring communities. Over the last 10 years, a number of beam instruments and systems have successfullyadopted optical solutions, pushing performances from ps to fs, exploiting optical set-ups or photonic components. [...]
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2018-01-17
14:39
OpenAccess [PUBDB-2018-00673] Conference Presentation
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High-harmonic generation in solids using a mid-infrared sub-cycle pulse synthesizer
Frontiers in Optics and Laser Science, Fio/LS, Meeting locationWashington, D.C., USA, 18 Sep 2017 - 21 Sep 20172017-09-182017-09-21  GO
We generate high-order harmonics in silicon using a mid-infrared (2.5−9.0 μm) pulse synthesizer. Even and odd harmonics (~19$^{th}$ order) with few-cycle pulses and near-continuous spectra with sub-cycle pulses, indicating an isolated harmonic emission, are observed..
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2018-01-17
12:51
OpenAccess [PUBDB-2018-00670] Conference Presentation
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High-energy mid-infrared sub-cycle pulse synthesis
CLEO Pacific Rim, Meeting locationSingapore, Singapore, 31 Jul 2017 - 4 Aug 20172017-07-312017-08-04  GO
We present the carrier-envelope phase-stable mid-infrared sub-cycle pulses, synthesized from an optical parametric amplifier covering the 2.5-9.0 μm range. The strong-field applications in solids and nano-structures are discussed..
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2018-01-12
14:47
OpenAccess [PUBDB-2018-00627] Journal Article
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Excitation and Control of Plasma Wakefields by Multiple Laser Pulses
ddc:550
We demonstrate experimentally the resonant excitation of plasma waves by trains of laser pulses. We also take an important first step to achieving an energy recovery plasma accelerator by showing that a plasma wave can be damped by an out-of-resonance trailing laser pulse. [...]
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2018-01-11
15:45
OpenAccess [PUBDB-2018-00540] Journal Article
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Evolutionary Optimization of Graphene-Metal Metasurfaces for Tunable Broadband Terahertz Absorption
ddc:620
Tunable terahertz absorbers based on graphene frequency selective surfaces are designed using well-established evolutionary optimization techniques. Randomly initialized hill climbing (RHC) algorithm is applied to find the design with the broadest bandwidth. [...]
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