Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Sina Zahedpour"'
Publikováno v:
Physical Review Letters. 127
We identify a class of modal solutions for spatio-temporal optical vortex (STOV) electromagnetic pulses propagating in dispersive media with orbital angular momentum (OAM) orthogonal to propagation. We find that symmetric STOVs in vacuum can carry ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dea003df885afc9b62f9214085e6b34
https://doi.org/10.1103/physrevlett.127.193901
https://doi.org/10.1103/physrevlett.127.193901
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
In this work we demonstrate, for the first time, the second harmonic generation (SHG) of a spatiotemporal optical vortex (STOVs) and its orbital angular momentum conservation. We use transient-grating single-shot supercontinuum spectral interferometr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d5fed56662196f4c841a8bff214e817
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9592643
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9592643
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Characterization of structured ultrashort laser pulses such as spatiotemporal optical vortices [1] , [2] demands a technique capable of capturing the spatiotemporal phase and amplitude of such pulses. Transient grating single-shot supercontinuum spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::387da7eda1cfc6b2f65b689ca038aa76
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9541566
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9541566
simulations, detailed experimental setup, simple model for STOV splitting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::034210f6c2e502be12b3b108f23202c7
We present a technique for the single-shot measurement of the spatiotemporal (1D s p a c e + t i m e ) amplitude and phase of an ultrashort laser pulse. The method, transient grating single-shot supercontinuum spectral interferometry (TG-SSSI), is de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c57367bf3f36087d8dde77506d099899
http://arxiv.org/abs/2011.12364
http://arxiv.org/abs/2011.12364
Publikováno v:
Opt Lett
Recently proposed universality of the nonlinear response is put to the test and used to improve a previously designed model for xenon. Utilizing accurate measurements resolving the nonlinear polarization and ionization in time and space, we calibrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98853625a82387f457518b562b5811c6
https://pubmed.ncbi.nlm.nih.gov/33057283
https://pubmed.ncbi.nlm.nih.gov/33057283
Publikováno v:
Frontiers in Optics / Laser Science.
We present results on the modal and quasi-modal linear propagation in a dispersive medium of ultrashort pulses carrying spatiotemporal optical vortices. We isolate contributions of wavefront tilt and dispersion to the optical angular momentum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f206bed87df7ffa8c67362c0f4272f9
https://doi.org/10.1364/fio.2020.fm7c.8
https://doi.org/10.1364/fio.2020.fm7c.8
Publikováno v:
Frontiers in Optics / Laser Science.
Spatiotemporal optical vortices (STOVs) are a new type of optical orbital angular momentum (OAM) residing in the space-time domain. Here we examine, through experiment and simulation, how STOV OAM is transformed in second-harmonic generation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f95cd692eb691b33d0cf62688d1fbd2b
https://doi.org/10.1364/fio.2020.fm7c.6
https://doi.org/10.1364/fio.2020.fm7c.6
Publikováno v:
OSA High-brightness Sources and Light-driven Interactions Congress 2020 (EUVXRAY, HILAS, MICS).
Spatiotemporal optical vortices (STOVs) are a new type of optical orbital angular momentum (OAM) residing in the space-time domain. Here we examine, through experiment and simulation, how STOV OAM is transformed in second-harmonic generation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b439d2303d287542f2b5b02819a32842
https://doi.org/10.1364/euvxray.2020.jm3a.21
https://doi.org/10.1364/euvxray.2020.jm3a.21
Publikováno v:
Optica. 8:594
A spatiotemporal optical vortex (STOV) is an intrinsic optical orbital angular momentum (OAM) structure in which the OAM vector is orthogonal to the propagation direction [Optica 6, 1547 (2019)OPTIC82334-253610.1364/OPTICA.6.001547] and the optical p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2566962e65863154062f14badf3cf235
https://doi.org/10.1364/optica.422743
https://doi.org/10.1364/optica.422743