Femtosecond laser filament-fringes in fused silica

Hao, Zuoqiang; Stelmaszczyk, K.; Rohwetter, Philipp; Nakaema, Walter M.; Woeste, L.

doi:10.1364/oe.19.007799

Cited by 29 publications

(13 citation statements)

References 31 publications

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“…A great challenge and expectation is to tame the randomicity and then to realize the controllable and even designable filamentation. For this purpose, several methods have been proposed such as, controlling the input power and divergence angle19, shaping the field profile2021, using amplitude/phase mask22232425, and introducing spatial regularization26.…”

mentioning

confidence: 99%

Taming the Collapse of Optical Fields

Wang

et al. 2012

Sci Rep

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Field collapse, which occurs in various nonlinear systems, has attracted much attention, owing to its universality, complexity, and applicability. A great challenge and expectation is to achieve the controllable and designable collapsing pattern. Here we predict theoretically and demonstrate experimentally the novel collapsing behaviors of the vector optical fields in a self-focusing Kerr medium. Surprisingly, the results reveal that the collapse of the vector optical field is controllable and designable by engineering the distribution of hybrid states of polarization, and has the robust feature insensitive to the random noise. Our idea has its significance which it opens a new window for manipulating the optical field and the different kinds of field, and then facilitates to push the related researches.

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confidence: 99%

Taming the Collapse of Optical Fields

Wang

et al. 2012

Sci Rep

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“…Âìåñòå ñ òåì ÌÔ â êîíäåíñèðîâàííûõ (aeèäêîñòè) è òâåðäûõ ñðåäàõ, ïî-âèäèìîìó, îòëè÷àåòñÿ áîëüøåé ñòàáèëüíîñòüþ. Ïðè ñóùåñòâåííîì ïðåâûøåíèè êðèòè÷åñêîé ìîùíîñòè ñàìîôîêóñèðîâêè èìïóëüñ èçëó÷åíèÿ â ðåçóëüòàòå ìåëêîìàñøòàáíîé ñàìîôîêóñèðîâêè òðàíñôîðìèðóåòñÿ â ñâÿçêó ôèëàìåíòîâ, êîòîðûå èìåþò ïðèìåðíî îäèíàêîâûé ïî-ïåðå÷íûé ðàçìåð è «ðàñïðîñòðàíÿþòñÿ» ïàðàëëåëüíî äðóã äðóãó [16][17][18], ñîõðàíÿÿ ñâîå ìåñòîïîëîaeåíèå â ïó÷êå. Êðîìå òîãî, ýêñïåðèìåíòû ïîêàçàëè, ÷òî èíäèâèäóàëüíûé ïëàçìåííûé êàíàë (è ïîðîaeäàþùèé åãî ñâåòîâîé ôèëàìåíò) ìîaeåò ïðåðûâàòüñÿ è âîçíèêàòü ñíîâà íåñêîëüêî ðàç â îäíîì è òîì aeå ìåñòå ïîïåðå÷íîãî ïðîôèëÿ ïó÷êà [18], äåìîíñòðèðóÿ òàê íàçûâàåìóþ ëîêàëüíóþ ðåôîêóñèðîâêó èçëó÷åíèÿ [19].…”

Section: ââåäåíèåunclassified

The microstructure of multi-filamentation region of femtosecond laser radiation in solid dielectric

2015

AOO

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Ïîñòóïèëà â ðåäàêöèþ 7.07.2015 ã. Ðàññìîòðåíû çàêîíîìåðíîñòè ìíîaeåñòâåííîé ôèëàìåíòàöèè ãèãàâàòòíûõ ôåìòîñåêóíäíûõ ëàçåðíûõ èìïóëüñîâ â ïëàâëåíîì êâàðöå. Ýêñïåðèìåíòàëüíî, à òàêaeå ñ ïîìîùüþ ÷èñëåííîãî ìîäåëèðîâàíèÿ ïðîàíàëèçèðîâàíà òîíêàÿ ñòðóêòóðà ïëàçìåííîé îáëàñòè, ñîçäàâàåìàÿ ïðè ôîòîèîíèçàöèè êâàðöà è ñîïóòñòâóþùàÿ ôîðìèðóþùèìñÿ ñâåòîâûì ôèëàìåíòàì. Âïåðâûå èññëåäîâàíà çàâèñèìîñòü ÷èñëà, ïîëîaeåíèÿ è ïðîòÿaeåííîñòè îòäåëüíûõ «ïîêîëåíèé» ïëàçìåííûõ êàíàëîâ îò ýíåðãèè èìïóëüñà èçëó÷åíèÿ. Îáñóaeäàåòñÿ ðîëü ðåôîêóñèðîâîê èçëó÷åíèÿ â ôîðìèðîâàíèè îáëàñòè ïëàçìîîáðàçîâàíèÿ.

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“…However, it is always anticipated for the realization of controllable field collapse and sequent filamentation, due to its practical applications, such as guiding microwave radiation [14], enhancement of terahertz emission [15], generation of millijoule-level supercontinuum in solid media [16], etc. For those purposes, some methods have been proposed by controlling the input power and divergence angle [17], shaping the field profile [18,19], using the amplitude/phase mask [20][21][22][23], and introducing the spatial regularization [24]. In fact, the above methods are to manipulate the spatial structure of scalar optical fields in phase and amplitude, whereas the spatial structure of polarization states was rarely involved.…”

Section: Introductionmentioning

confidence: 99%

Controlling optical field collapse by elliptical symmetry hybrid polarization structure

et al. 2018

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Engineering the diversity of the spatial structure of polarization states offers a new approach to produce controllable and designable filament patterns. Here we predict theoretically and demonstrate experimentally the novel collapsing behaviors of the optical fields by using the elliptical symmetry hybrid polarization structure in a self-focusing Kerr medium. The results reveal that the distribution of the hybrid polarization states, the spin angular momentum (SAM) gradient, and the collapsing patterns could be manipulated by changing the eccentricity, the topological charge, and the initial phase of the optical field. Owing to the synergy of the hybrid polarization states and its spatial symmetry, the collapsing behaviors are controllable, and have the robust feature insensitive to the random noise. Our idea may offer an alternative route to produce the controllable and robust multiple filamentation in other nonlinear systems, thereby facilitating the development of additional surprising applications.

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Femtosecond laser filament-fringes in fused silica

Cited by 29 publications

References 31 publications

Taming the Collapse of Optical Fields

Taming the Collapse of Optical Fields

The microstructure of multi-filamentation region of femtosecond laser radiation in solid dielectric

Controlling optical field collapse by elliptical symmetry hybrid polarization structure

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