Spatiotemporal characterization of ultrabroadband Airy pulses

Piksarv, Peeter; Valdmann, Andreas; Valtna-Lukner, Heli; Matt, Roland; Saari, Peeter

doi:10.1364/ol.38.001143

Cited by 9 publications

(8 citation statements)

References 16 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Attempts at producing wave packets with one transverse dimension that are propagation-invariant in media with anomalous [126] and normal [127] GVD were reported, but without verifying propagation invariance. Subsequent work was stimulated by the introduction of Airy beams [14,15], pulsed Airy beams [219][220][221][222][223], and Airy pulses [118,224]. In part, research was stimulated along the lines motivated by the Airy-Bessel wave packet reported in 2010 [118].…”

Section: After 2010mentioning

confidence: 99%

Space-time wave packets

Yessenov¹,

Hall²,

Schepler³

et al. 2022

Preprint

View full text Add to dashboard Cite

Space-time' (ST) wave packets constitute a broad class of pulsed optical fields that are rigidly transported in linear media without diffraction or dispersion, and are therefore propagation-invariant in absence of optical nonlinearities or waveguiding structures. Such wave packets exhibit unique characteristics, such as controllable group velocities in free space and exotic refractive phenomena. At the root of of these behaviors is a fundamental feature underpinning ST wave packets: their spectra are not separable with respect to the spatial and temporal degrees of freedom. Indeed, the spatio-temporal structure is endowed with non-differentiable angular dispersion, in which each spatial frequency is associated with a single prescribed wavelength. Furthermore, deviation from this particular spatio-temporal structure yields novel behaviors that depart from propagation invariance in a precise manner, such as acceleration with an arbitrary axial distribution of the group velocity, tunable dispersion profiles, and Talbot effects in space-time. Although the basic concept of ST wave packets has been known since the 1980's, only very recently has rapid experimental development emerged. These advances are made possible by innovations in spatio-temporal Fourier synthesis, thereby opening a new frontier for structured light at the intersection of beam optics and ultrafast optics. Furthermore, a plethora of novel spatio-temporally structured optical fields (such as flying-focus wave packets, toroidal pulses, and ST optical vortices) are now providing a swathe of surprising characteristics, ranging from tunable group velocities to transverse orbital angular momentum. We review the historical development of ST wave packets, describe the new experimental approach for their efficient synthesis, and enumerate the various new results and potential applications for ST wave packets and other spatio-temporally structured fields that are rapidly accumulating, before casting an eye on a future roadmap for this field.

show abstract

Section: After 2010mentioning

confidence: 99%

Space-time wave packets

Yessenov¹,

Hall²,

Schepler³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The spatial resolution is determined by the mode size of the fibres and is approximately 3 μm. Type II Airy beam profile was created by a reflective SLM (Holoeye LC-R 2500) with an imposed cubic phase mask in both transverse orthogonal directions [14]. The SLM was placed in the focal plane of an achromatic lens with focal length of f = 500 mm.…”

Section: Methods and Experimental Setupmentioning

confidence: 99%

“…The type of an Airy pulse is determined by properties of the optical system for creating it. It was previously shown that an SLM with a cubic phase mask containing discontinuities will produce type II Airy pulses that exhibit strong lateral dispersion [14]. For applications that require a spatially and temporally localized ultrashort pulse, type IV Airy beams would be most suitable as all its spectral components propagate along the same trajectory and their main intensity lobe is not subjected to lateral dispersion.…”

Section: Theoretical Modelsmentioning

confidence: 99%

Ultrabroadband Airy light bullets

Piksarv

Valdmann

Valtna-Lukner

et al. 2014

J. Phys.: Conf. Ser.

Self Cite

View full text Add to dashboard Cite

Abstract. We present the measurements of the spatiotemporal impulse responses of two optical systems for launching ultrashort Airy pulses, incl. ultrabroadband nonspreading Airy beams whose main lobe size remains invariantly small over propagation. First, a spatial light modulator and, second, a custom refractive element with continuous surface profile were used to impose the required cubic phase on the input field. White-light spectral interferometry setup based on the SEA TADPOLE technique was applied for full spatio-temporal characterization of the impulse response with ultrahigh temporal resolution approaching a single cycle of the light wave. The results were compared to the theoretical model.

show abstract

“…In general, a broadband 1-dimensional Airy beam can be expressed in the paraxial approximation as a superposition of its monochromatic constituents of wavenumber k over spectrum S (k) [4,5,14] .…”

Section: Theoretical Modelsmentioning

confidence: 99%

“…A spatial-spectral interferometry technique based on the SEA TADPOLE method [17] was used to fully characterize the created Airy wave field with high spatial and temporal resolution. In contrast to previous results on the spatiotemporal measurement of Airy pulses [18,19], this paper provides a more thorough comparison between Airy pulses generated using both an SLM and a custom-made cubic phase element and corresponding measurement configurations. In addition, the results of using a shorter focal length Fourier lens in the Airy generation are presented.…”

Section: Introductionmentioning

confidence: 99%