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[PDF] Top 20 Broadband terahertz radiation from two-color mid- and far-infrared laser filaments in air

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Broadband terahertz radiation from two-color mid- and far-infrared laser filaments in air

Broadband terahertz radiation from two-color mid- and far-infrared laser filaments in air

... photocurrents in laser-driven THz pulse generation ...magnitude and shifts the peak frequencies down to νTHz < 1 ...generation and related photocurrents — even in- volving rather low ... Voir le document complet

6

Production of THz Radiation from Mid-and Far-Infrared Two-Color Femtosecond Pulses in Air

Production of THz Radiation from Mid-and Far-Infrared Two-Color Femtosecond Pulses in Air

... 1: Laser-to-THz conversion efficiency from the local-current model using the two input fluences (a) 5 and (b) 10 J/cm 2 ...fits in λ α 0 . (c) THz energies numerically computed for ... Voir le document complet

3

Terahertz spectroscopy from air plasmas created by two-color femtosecond laser pulses: The ALTESSE project

Terahertz spectroscopy from air plasmas created by two-color femtosecond laser pulses: The ALTESSE project

... generation and pulse compression PACS 32.80.Fb – Photoionization of atoms and ions PACS ...– Laser-plasma interactions Abstract –Terahertz pulses are very popular because of their numerous ... Voir le document complet

8

Coherent Secondary Radiation from Femtosecond Laser Filaments

Coherent Secondary Radiation from Femtosecond Laser Filaments

... ] and earth sciences [ Waters 06 ...achieved in the last few years in the development of in- tense THz ...short laser pulse in a nonlinear crystal yields THz sources with field ... Voir le document complet

165

Strong Enhancement of Terahertz Radiation from Laser Filaments in Air by a Static Electric Field

Strong Enhancement of Terahertz Radiation from Laser Filaments in Air by a Static Electric Field

... length and the plasma density, and the cone opening is a few degrees for the present ...the far field THz emission provides a method for measuring the ponderomotive potential (or the laser ... Voir le document complet

6

Terahertz pulse generation by two-color laser fields with circular polarization

Terahertz pulse generation by two-color laser fields with circular polarization

... setup and results THz waves were generated in air by bichromatic femtosecond laser pulses following the setup shown in figure 7 ...amplification laser system (Legend elite duo HE+, ... Voir le document complet

20

THz emissions by two-color filaments in air: Revisiting the wavelength scaling

THz emissions by two-color filaments in air: Revisiting the wavelength scaling

... (260.3090) Infrared, far. 1. Intr oduction Producing terahertz (THz) radiation by ultrashort laser pulses has become an active f eld of research because of its promising applications ... Voir le document complet

3

Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength

Spectral dynamics of THz pulses generated by two-color laser filaments in air: the role of Kerr nonlinearities and pump wavelength

... of air constituents at mid-infrared wavelengths,” ...Introduction Laser filaments produced by ultrashort light pulses proceed from the dynamic balance between Kerr self-focusing ... Voir le document complet

22

Impact of the pump wavelength in THz emissions by two-color femtosecond laser filaments in air

Impact of the pump wavelength in THz emissions by two-color femtosecond laser filaments in air

... applications, from supercontinuum generation to lightning control [1]. In air, femtosecond filaments result from the self-focusing of ultrashort light pulses that couple to their own ... Voir le document complet

2

THz and far-infrared radiation from ionizing multi-color pulses

THz and far-infrared radiation from ionizing multi-color pulses

... intense terahertz (THz) electromagnetic sources has received an increasing attention owing to numerous applications, for example, in time-domain spectroscopy, biomedical imaging or security screening ...THz ... Voir le document complet

2

Coherent control of boosted terahertz radiation from air plasma pumped by femtosecond three-color sawtooth field

Coherent control of boosted terahertz radiation from air plasma pumped by femtosecond three-color sawtooth field

... Conclusion In conclusion, we demonstrated a simple and robust inline optical setup enabling precise control of the relative phases between three harmonic femtosecond laser fields, providing a ... Voir le document complet

20

THz Emissions from Air-Plasmas Created by Mid-and Far-Infrared Two-Color Femtosecond Pulses

THz Emissions from Air-Plasmas Created by Mid-and Far-Infrared Two-Color Femtosecond Pulses

... 2 and water absorption ...wavelength and pump energy (P cr ∝ λ 0 2 ), longer filaments are promoted and they start to self-focus at shorter propagation ...pumps and several mJ for ... Voir le document complet

3

Photoelectron angular distributions from the ionization of xenon Rydberg states by mid-infrared radiation

Photoelectron angular distributions from the ionization of xenon Rydberg states by mid-infrared radiation

... obtained from counting the minima in the angular distribution as given by the TDSE ...0 and more specifically the angular momentum always differs by ...oscillations in the angular distribution ... Voir le document complet

23

Probing ice clouds by broadband mid-infrared extinction spectroscopy: case studies from ice nucleation experiments in the AIDA aerosol and cloud chamber

Probing ice clouds by broadband mid-infrared extinction spectroscopy: case studies from ice nucleation experiments in the AIDA aerosol and cloud chamber

... FTIR and WELAS recordings for two AIDA expansion experiments: I (left column, cor- responding to experiment B of ...of infrared extinction spectra which were recorded during the expansion runs at ... Voir le document complet

62

Spectral self-action of THz emission from ionizing two-color laser pulses in gases

Spectral self-action of THz emission from ionizing two-color laser pulses in gases

... Conclusions In conclusion, we have investigated THz emission via ionizing two-color femtosecond pulses and revealed a THz spectral self-action ...stems from the interaction of the ... Voir le document complet

11

Chromium-doped zinc selenide gain media: From synthesis to pulsed mid-infrared laser operation

Chromium-doped zinc selenide gain media: From synthesis to pulsed mid-infrared laser operation

... OPO and to include the Cr 2+ :ZnSe gain ...optics and the sapphire tuning prism, the output wavelength could be continuously tuned from 1880 to 3100 ... Voir le document complet

11

Amplification of transition-Cherenkov terahertz radiation of femtosecond filament in air

Amplification of transition-Cherenkov terahertz radiation of femtosecond filament in air

... the radiation pattern and polarization properties of this enhanced THz emission with the case without the external electric field indicates that it has the same physical ...origin. In the case of a ... Voir le document complet

11

Emerging Microstructured Fibers for Linear and Nonlinear Optical Applications in the Mid-Infrared and Terahertz Spectrum

Emerging Microstructured Fibers for Linear and Nonlinear Optical Applications in the Mid-Infrared and Terahertz Spectrum

... infrared spectrum, the use of flexible optical fibers as links between individual optical components has resulted in the dramatic increase in systems' performance and reliability, a reduction ... Voir le document complet

140

Radiofrequency conical emission from femtosecond filaments in air

Radiofrequency conical emission from femtosecond filaments in air

... subpicosecond laser pulse launched in atmosphere self organizes in the form of a collimated beam is the subject of active investigations (for a recent review see ref 1 ...). Filaments consist ... Voir le document complet

5

Broadband terahertz photonics

Broadband terahertz photonics

... K. In principle, this effect could be investigated by simply plotting the gain spectra at elevated temperatures, but in practice this is difficult since the artifact at ...activated and affects a ... Voir le document complet

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