Broadband four-wave optical parametric amplification in bulk isotropic media in the ultraviolet

Darginavičius, J.; Tamošauskas, G.; Valiulis, G.; Dubietis, A.

doi:10.1016/j.optcom.2009.04.031

Cited by 16 publications

(14 citation statements)

References 29 publications

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“…We also note that with E 3 = 1 mJ the highest amplified signal energy of 55 µJ was measured with almost 4% pumpto-signal energy conversion efficiency in the gain saturation regime. Similar results had been obtained by replacing fused silica with l = 6 mm CaF 2 sample and reported elsewhere [29].…”

Section: Resultssupporting

confidence: 90%

“…More recently, feasibility of this technique has been demonstrated in the ultraviolet spectral range for broadband four-wave parametric amplification [29] and high energy third harmonic generation of the Nd:glass laser by means of differencefrequency generation [30]. In this paper we overview the results of generation of high energy ultrashort light pulses in the UV-DUV-VUV spectral range by means of four-wave optical parametric amplification and four-wave differencefrequency mixing in UV-transparent solid state bulk materials, such as fused silica, CaF 2 , and MgF 2 .…”

Section: Introductionmentioning

confidence: 99%

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Generation and amplification of ultrashort UV pulses via parametric four-wave interactions in transparent solid-state media

Dubietis¹,

Darginavičius²,

Tamošauskas³

et al. 2009

Lithuanian J. Phys.

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We report on efficient generation of the ultrashort ultraviolet light pulses by means of phase-matched four-wave optical parametric amplification and four-wave difference frequency mixing in UV-transparent solids with cubic nonlinearity. Broadband four-wave optical parametric amplification around 330 nm is investigated theoretically and demonstrated experimentally in optically isotropic materials, such as fused silica and CaF2 crystals. The results suggest that powerful broadband ultraviolet pulses as short as 7.5 fs (in the transform limit) could be amplified in the field of milijoule 1-ps visible pulses. Efficient generation of 1-ps pulses at the 3rd (351 nm), 5th (211 nm), and, in particular, 6th (176 nm) harmonics of the Nd:glass laser is experimentally demonstrated through non-collinearly phase-matched four-wave difference-frequency mixing in fused silica, CaF2 and MgF2 crystals.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Generation and amplification of ultrashort UV pulses via parametric four-wave interactions in transparent solid-state media

Dubietis¹,

Darginavičius²,

Tamošauskas³

et al. 2009

Lithuanian J. Phys.

Self Cite

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“…4(f). We have also observed that an increase of the pump energy leads to a spectral broadening of the near-IR pulse, as a result of the cross-phase modulation (XPM) between the pump and seed pulses inside the fused silica sample, as noted in similar experiments [18,24]. We have found that the XPM-broadened pulses are still fully compressible, and indeed, the measured pulse durations, after optimization of the pulse compressor, have been shorter by ∼10-20%.…”

Section: Generation Of Sub-30 Fs Pulses By Noncollinear Optical Paramsupporting

confidence: 70%

“…Another approach considers IR generation in wide bandgap solids, such as CaF 2 and BaF 2 [14,15], which possess much higher third-order nonlinearity than gases. A suitably chosen noncollinear interaction geometry allows to achieve high conversion efficiency (up to 10-15%), high output energy, and broad amplification bandwidth [16][17][18]. Cascaded four-wave mixing offers additional possibilities for generation of tunable broadband multicolor output pulses with excellent selfcompressibility and high temporal contrast [19].…”

Section: Introductionmentioning

confidence: 99%

Generation of tunable infrared femtosecond pulses via parametric visible-to-infrared frequency conversion

et al. 2011

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We propose two methods for ultrashort pulse parametric visible-to-infrared frequency conversion, that are directly applied to extend the tuning range of a commercial Ti:sapphire laser-noncollinear optical parametric amplifier system. The first method is based on broadband noncollinear four-wave optical parametric amplification in fused silica, and the second is based on cascaded three-wave parametric interaction in a single BBO crystal. The proof-of-principle experiments demonstrate generation of sub-30-fs, ∼20 µJ pulses, broadly tunable across the infrared (1-3 µm) spectral range.

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“…n, n2,elec, and ) 3 ( ele  stand for the linear refractive index, nonlinear refractive index coefficient, and the corresponding third-order susceptibility, respectively. The phase modulation arising from the induced nonlinear refractive index alternates the amplification behavior of the signal pulse in the FWOPA [11,17].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Four-Wave Optical Parametric Amplification in a Raman-Active Gas

Kida

Imasaka

2015

Photonics

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Four-wave optical parametric amplification (FWOPA) in a Raman-active medium is experimentally investigated by use of an air-filled hollow fiber. A femtosecond pump pulse shorter than the period of molecular motion excites the coherent molecular motion of the Raman-active molecules during the parametric amplification of a signal pulse. The excited coherent motion modulates the frequency of the signal pulse during the parametric amplification, and shifts it to lower frequencies. The magnitude of the frequency redshift depends on the pump intensity, resulting in intensity-dependent spectral characteristics that are different from those in the FWOPA induced in a noble-gas-filled hollow fiber.

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Broadband four-wave optical parametric amplification in bulk isotropic media in the ultraviolet

Cited by 16 publications

References 29 publications

Generation and amplification of ultrashort UV pulses via parametric four-wave interactions in transparent solid-state media

Generation and amplification of ultrashort UV pulses via parametric four-wave interactions in transparent solid-state media

Generation of tunable infrared femtosecond pulses via parametric visible-to-infrared frequency conversion

Four-Wave Optical Parametric Amplification in a Raman-Active Gas

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