Multiple THz pulse generation with variable energy ratio and delay

Ungureanu, R.; Grigore, Oana; Dinca, Mihai; Cojocaru, G.; Ursescu, D.; Dascalu, T.

doi:10.1088/1612-2011/12/4/045301

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…Generating THz waves via two-color laser focusing in a gas has overcome the problematic radiation properties of THz waves from a gas plasma. [15][16][17] In this scheme, linearly polarized THz waves are generated in the forward direction. This requires precise adjustment of the temporal deviation between the two pulses to match their phases.…”

mentioning

confidence: 99%

Directional linearly polarized terahertz emission from argon clusters irradiated by noncollinear double-pulse beams

Mori

Hashida

Nagashima

et al. 2017

Applied Physics Letters

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It has been demonstrated that the interaction between argon clusters and intense femtosecond double laser pulses with appropriate intervals in time and space provides important properties for terahertz electromagnetic wave generation, namely, high forward directivity, power enhancement, and linear polarization with a variable direction. Irradiating argon clusters with double pulses (1 and 3 mJ, 40 fs, 810 nm) in 133-ps and 40-μm intervals results in terahertz wave emission in the forward direction that is 10 times greater than that for a single pulse. The polarization direction of terahertz electromagnetic waves can be varied by changing the relative focal positions of the first and second pulses.

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mentioning

confidence: 99%

Directional linearly polarized terahertz emission from argon clusters irradiated by noncollinear double-pulse beams

Mori

Hashida

Nagashima

et al. 2017

Applied Physics Letters

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show abstract

“…• Multiple THz pulse generation with variable energy ratio and delay-two methods for multiple high energetic THz pulse generation by two-color filamentation in air with controllable energy ratio and delay ranging from one to hundreds of ps are investigated [25].…”

Section: • Field-free Molecular Orientation By Two-color Femtosecond mentioning

confidence: 99%

Introducing theLaser PhysicsandLaser Physics Lettershighlights of 2015

McKenna¹

2016

Laser Phys. Lett.

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The International Year of Light 2015 was a landmark for the laser and optics community pointing the way to a bright future for humanity and the environment. It is with great satisfaction that Laser Physics and Laser Physics Letters have published many notable articles that have contributed to the development of light-based technologies and breakthroughs in photonics. In recognition of their high quality, we present a selection of some of the most popular articles published by Laser Physics and Laser Physics Letters throughout 2015, all of which are believed to have the potential to make a high impact on future research directions. Those chosen are recognised for their high-interest with readers and importance in the field, providing a snapshot of the broad subject coverage and international make-up of both journals.Starting this year, we will be recognising and announcing annual highlights of a previous year for both journals. We hope that you find these highlights useful and look forward to publishing more cutting-edge work in the year ahead.Summary of the highlights articles: Physics of lasers• • Experimental investigation of the light shift effect in an optical-magnetic double resonance system-an experimental scheme for studying the light shift effect in an optical magnetic double resonance system by using 4 He atoms is demonstrated [3]. • Enhanced random lasing from a colloidal CdSe quantum dot-Rh6G system-randomlaser action in a system where optical amplification is provided by colloidal CdSe quantum dots triggered by the emission from Rhodamine 6 G is reported [4].• Ultra-short pulse generation in the hybridly mode-locked erbium-doped all-fiber ring laser with a distributed polarizer-ultra-short pulse generation in a dispersion-managed erbium-doped all-fiber ring laser hybridly mode-locked with boron nitride-doped singlewalled carbon nanotubes, in co-action with a nonlinear polarization evolution in the ring cavity with a distributed polarizer, is reported for the first time [5].• Analysis of pump excited state absorption and its impact on laser efficiency-a model to quantify the effect of excited state absorption at the pump wavelength on laser efficiency, threshold and heating is developed [6]. Fibre optics and fibre lasers• 80 fs passively mode-locked Er-doped fiber laser-an Er-doped laser that has an all-fiber design, including the dispersion compensation and external compression stages, forming a robust and compact device, is reported [7].• Bound-state fiber laser mode-locked by a graphene-nanotube saturable absorbermultiple bound states in a linear-cavity fiber laser mode-locked by a mixture of graphene and single-walled carbon nanotubes is experimentally observed [8]. Jarlath McKenna Publisher, Laser Physics and Laser Physics Letters Introducing the Laser Physics and Laser Physics Letters highlights of 2015Laser Physics Letters

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“…260 nm pulses are obtained as the fourth harmonic component of a near-IR fundamental which is frequency up-converted into a double beta barium boratebased harmonic generator stage [24]. • Multiple THz pulse generation with variable energy ratio and delay-two methods for multiple high energetic THz pulse generation by two-color filamentation in air with controllable energy ratio and delay ranging from one to hundreds of ps are investigated [25]. • Influence of temporal-spectral effects on ultrafast fiber coherent polarization beam combining system-the influence of different temporal-spectral effects has been segregated for the first time and corresponding analytical equations have been strictly derived to link the combining efficiency with specific factors [26].…”

Section: • Temporal and Spectral Characterization Of Femtosecond Deep...mentioning

confidence: 99%

Introducing theLaser PhysicsandLaser Physics Lettershighlights of 2015

McKenna¹

2016

Laser Phys.

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Multiple THz pulse generation with variable energy ratio and delay

Cited by 5 publications

References 34 publications

Directional linearly polarized terahertz emission from argon clusters irradiated by noncollinear double-pulse beams

Directional linearly polarized terahertz emission from argon clusters irradiated by noncollinear double-pulse beams

Introducing theLaser PhysicsandLaser Physics Lettershighlights of 2015

Introducing theLaser PhysicsandLaser Physics Lettershighlights of 2015

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