Consecutive high-order harmonic generation and formation of subfemtosecond light pulses in aperiodical nonlinear photonic crystals

Shutov, I. V.; Chirkin, A. S.

doi:10.1103/physreva.78.013827

Cited by 15 publications

(8 citation statements)

References 13 publications

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“…Several design methods that enable structures supporting multiple nonlinear processes simultaneously have been proposed. The method of superposition of modulation of nonlinearity sign (SMNS) has been proved to be a versatile approach to construct aperiodic crystals [42,43,44]. According to this method, to compensate for multiple N phase mismatches by the structure ∆k j (j = 1, N ), the modulating function is calculated [44]:…”

Section: Coupled Pdc and Sfg Processesmentioning

confidence: 99%

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Coupled parametric processes in binary nonlinear photonic structures

Saygin

Chirkin

2016

J. Opt. Soc. Am. B

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We study parametric interactions in a new type of nonlinear photonic structures, which is realized in the vicinity of a pair of nonlinear crystals. In this kind of structure, which we call binary, multiple nonlinear optical processes can be implemented simultaneously, owing to multiple phase-matching conditions, fulfilled separately in the constituent crystals. The coupling between the nonlinear processes by means of modes sharing similar frequency is attained by the spatially-broadband nature of the parametric fields. We investigate the spatial properties of the fields generated in the binary structure constructed from periodically poled crystals for the two examples: 1) single parametric down-conversion, and 2) coupled parametric down-conversion and up-conversion processes. The efficacy of the fields generation in these examples is analyzed through comparison with the cases of traditional single periodically poled crystal and aperiodic photonic structure, respectively. It has been shown that the relative shift between the periodic crystal lattices has a crucial effect on the generated spatial field spectrum and the overall efficiency. In addition, the influence of the inter-crystal distance on these characteristics has been studied. Therefore, our study suggests that one can construct optical elements with sophisticated nonlinear properties from simpler elements without significant sacrifice of the efficacy.

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Section: Coupled Pdc and Sfg Processesmentioning

confidence: 99%

“…Previously, the authors suggested one-dimensional structures as means to generate multicolor fields [43,42,44]. In these aperiodic structures, the desired crystal lattice is constructed by superposing several lattice harmonics, each of which compensates single phase mismatch [43,44].…”

Section: Introductionmentioning

confidence: 99%

Coupled parametric processes in binary nonlinear photonic structures

Saygin

Chirkin

2016

J. Opt. Soc. Am. B

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“…In recent years, researchers were interested not only in natural random media but also in artificial random media; that is, in the domain structures that contain several superimposed spatial modulation frequencies [11,12]. Nonlinear optical properties of such structures must be similar to those of random structures.…”

Section: Introductionmentioning

confidence: 99%

Applications of Random Nonlinear Photonic Crystals Based on Strontium Tetraborate

2012

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Properties of strontium tetraborate (SBO) and features of as-grown anti-parallel domains are summarized. From the point of view of nonlinear optics, these domains form nonlinear photonic crystals (NPC). Applications of NPC to the deep ultraviolet generation and fs pulse diagnostics are described. NPC and SBO are prospective media for the creation of a widely tunable source of fs pulses in the vacuum ultraviolet and for autocorrelation diagnostics of broadly tunable sources.

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“…Generally these requirements are satisfied in consecutive steps. A phase coherent Fourier spectrum is first generated using methods such as self-phase modulation in nonlinear photonic crystal fiber [5], high harmonic generation from ultrafast lasers [6], molecular modulation [7], or multiple harmonics generation [8,9]. In some of these methods periodic ultrashort pulse trains are formed at the location where the phase-coherent spectrum is produced.…”

Section: Introductionmentioning

confidence: 99%

“…By introducing aperiodic or quasi-periodic modulation Zhu and associates first showed that two lattice vectors can be created in one crystal to provide simultaneous quasiphase-matched second and third harmonic generation in a superlattice [14]. Recently, Shutov and Chirkin advanced the technique to show by simulation that several harmonics can be generated in an AOS to provide a broad comb of coherent frequencies [9]. They proposed AOS designs that optimize the efficiency of each harmonic generation stage to produce up to 8 consecutive harmonics, the superposition of which gives pulses of ultimate duration at some fixed interaction length determined and limited by the dispersion properties of the AOS.…”

Section: Introductionmentioning

confidence: 99%

Arbitrary waveform synthesis by multiple harmonics generation and phasing in aperiodic optical superlattices

Lin

Kung

2009

Opt. Express

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The process of generating periodic optical waveforms includes the generation and phasing of several harmonics of a fundamental frequency. In this work, we show that simultaneous generation and phasing of the harmonics can be performed in a monolithic aperiodic optical superlattice (AOS). Stable periodic waveforms can thus be delivered to a predetermined location by simply sending a laser beam through a properly designed and fabricated AOS crystal. A detailed mathematical description for generating the domain pattern in such an AOS crystal is given and the process is numerically demonstrated. The waveform that is generated from a monolithic AOS is highly reproducible and phase stable. We also use propagation in air as an example to show how any predictable phase and amplitude modifications such as air dispersion that will alter the desired waveform can be pre-compensated in the design phase of the AOS crystal.

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Consecutive high-order harmonic generation and formation of subfemtosecond light pulses in aperiodical nonlinear photonic crystals

Cited by 15 publications

References 13 publications

Coupled parametric processes in binary nonlinear photonic structures

Coupled parametric processes in binary nonlinear photonic structures

Applications of Random Nonlinear Photonic Crystals Based on Strontium Tetraborate

Arbitrary waveform synthesis by multiple harmonics generation and phasing in aperiodic optical superlattices

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