Measurement of the third order nonlinear susceptibility of paratellurite single crystal using multiplex CARS

Rajaofara, Zakaniaina; Leproux, Philippe; Capitaine, Erwan; Kano, Hideaki; Hayakawa, Tomokatsu; Thomas, Philippe; Duclère, J.-R.; Couderc, Vincent

doi:10.1063/1.5113478

Cited by 3 publications

References 22 publications

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Post-compression of femtosecond laser pulses using self-phase modulation: from kilowatts to petawatts in 40 years

Хазанов¹

2022

Quantum Electron.

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The pulse duration at the output of femtosecond lasers is usually close to the Fourier limit, and can be shortened by increasing the spectral width. To this end, use is made of selfphase modulation when a pulse propagates in a medium with cubic nonlinearity. Then, the pulse with a chirp (frequency dependence of the spectrum phase) is compressed due to a linear dispersion element, which introduces a chirp of the same modulus, but opposite in sign. This pulse post-compression, known since the 1960s, has been widely used and is being developed up to the present for pulses with energies from fractions of a nJ to tens of J. The review is devoted to the theoretical foundations of this method, problems of energy scaling, and a discussion of the results of more than 150 experimental studies.

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Post-compression of femtosecond laser pulses using self-phase modulation: from kilowatts to petawatts in 40 years

Хазанов¹

2022

Quantum Electron.

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χ(3) nonlinear fast imaging and its relative quantification after thermal poling of niobium borophospate glass

Rajaofara¹,

Leproux²,

Dussauze³

et al. 2020

OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF)

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Mapping the second and third order nonlinear susceptibilities in a thermally poled microimprinted niobium borophosphate glass

Rajaofara

Leproux

Dussauze

et al. 2021

Opt. Mater. Express

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Multiplex coherent anti-stokes Raman scattering (M-CARS) and second harmonic generation (SHG) techniques are used to map the real part of the nonresonant third order nonlinear optical susceptibility and the second order nonlinear optical susceptibility of a thermally microimprinted niobium borophosphate glass. In particular, such bimodal nonlinear imaging is employed in order to precisely evaluate how thermal poling can modify the amplitude of the nonresonant third-order nonlinearity of the sample. A systematic decrease of the M-CARS intensity is found in the poled areas with respect to the unpoled ones, suggesting therefore a reduction of the real part of the nonresonant third order nonlinear susceptibility within these regions. Such a reduction in the M-CARS intensity can be explained by sodium depletion in the subanodic zone and is mostly linked to the reduction of both the matter density and the linear refractive index, in agreement with earlier works on thermal poling on the same family of glasses.

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Measurement of the third order nonlinear susceptibility of paratellurite single crystal using multiplex CARS

Cited by 3 publications

References 22 publications

Post-compression of femtosecond laser pulses using self-phase modulation: from kilowatts to petawatts in 40 years

Post-compression of femtosecond laser pulses using self-phase modulation: from kilowatts to petawatts in 40 years

χ(3) nonlinear fast imaging and its relative quantification after thermal poling of niobium borophospate glass

Mapping the second and third order nonlinear susceptibilities in a thermally poled microimprinted niobium borophosphate glass

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