Formation mechanism of self-organized voids in dielectrics induced by tightly focused femtosecond laser pulses

Song, Juan; Wang, Xinshun; Hu, Xiao-Li; Dai, Yong; Qiu, Jianrong; Cheng, Yi; Xu, Zhizhan

doi:10.1063/1.2841066

Cited by 58 publications

(36 citation statements)

References 11 publications

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“…A physical model considering both the ISA theory and the NE of pulse propagation, was once proposed by us and is also adopted in this paper. [16] Moreover, since the femtosecond laser pulse inherently contains a wide spectrum ranging from about 790 nm to 810 nm, group velocity dispersion(GVD) is also incorporated in our model. In addition to GVD effects, the wide spectrum characteristics also may cause interface chromatic aberration.…”

Section: Discussionmentioning

confidence: 99%

“…5 for comparison. [16,19] It may be that the combined effects of defocusing caused by the natural diffraction and plasma surpassed the kerr self-focusing effect, so there are no short-period multiple focuses which are expected to result from a succession of kerr self-focusing and plasma defocusing phenomena. The comparisons between two models clearly indicate that the fluence periodicity is most probably caused by ISA rather than NE.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Self-organized voids revisited: Experimental verification of the formation mechanism

Song¹,

Ye²,

Qian³

et al. 2014

Chinese Phys. B

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Self-organized voids revisited: Experimental verification of the formation mechanism

Song¹,

Ye²,

Qian³

et al. 2014

Chinese Phys. B

Self Cite

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“…(c). The formation of the filamentation in the silica glass sample is one of the most fundamental nonlinear optical phenomena and results from the dynamic balance between self-focusing arising from an increase in the refractive index and selfdefocusing arising from diffraction or plasma formation [46][47]. A series of grating could be fabricated in the silica glass sample by moving the computercontrolled XYZ translation micro-stage at different scanning speeds and different pulse energies.…”

Section: Resultsmentioning

confidence: 99%

Several Diffractive Optical Elements Fabricated by Femtosecond Laser Pulses Writing Directly

Guo¹,

Ran²,

Qu³

et al. 2010

Coherence and Ultrashort Pulse Laser Emission

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“…For creating high contrast LHs we used enough energy per pulse to create small voids at the focus [25] resulting thus to peak index changes up to ~0.5. Using third 6 harmonic generation microscopy we found that our LH have a prolate spheroid shape with dimensions of 2-3 μm for the transversal semi-principal axes while the longitudinal are approximately 8-10 μm.…”

Section: Methodsmentioning

confidence: 99%

Extreme events in complex linear and nonlinear photonic media

Mattheakis

Pitsios

Tsironis

et al. 2016

Chaos, Solitons & Fractals

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Ocean rogue waves (RW) -huge solitary waves-have for long triggered the interest of scientists. RWs emerge in a complex environment and it is still dubious the importance of linear versus nonlinear processes. Recent works have demonstrated thatRWs appear in various other physical systems such as microwaves, nonlinear crystals, cold atoms, etc. In this work we investigate optical wave propagation in strongly scattering random lattices embedded in the bulk of transparent glasses. In the linear regime we observe the appearance of RWs that depend solely on the scattering properties of the medium. Interestingly, the addition of nonlinearity does not modify the RW statistics, while as the nonlinearities are increased multiple-filamentation and intensity clamping destroy the RW statistics. Numerical simulations agree nicely with the experimental findings and altogether prove that optical rogue waves are generated through the linear strong scattering in such complex environments.Ocean rogue or freak waves are huge waves that appear in relatively calm seas in a very unpredictable way. Numerous naval disasters leading to ship disappearance under uncertain conditions have been attributed to these waves. Since sailors are well known story makers these monster, destructive waves that were in naval folklore perhaps for thousands of years penetrated the realm of science only recently and after quantitative observations [1,2]. Since then, they seem to spring up in many other fields including optics [3][4][5][6][7], BEC and matter waves, finance, etc [8][9][10][11][12]. Unique 2 features of rogue waves, contrary to other solitary waves, are both their extreme magnitude but also their sudden appearance and disappearance. In this regard they are more similar to transient breather events than solitons. Since the onset of both necessitates the presence of some form of nonlinearity in the equation of motion describing wave propagation, it has been tacitly assumed that extreme waves are due to nonlinearity. Intuitively, one may link the onset of a rogue wave to a resonant interaction of two or three solitary waves that may appear in the medium. However, large amplitude events may also appear in a purely linear regime [1,2,4,6]; a typical example is the generation of caustic surfaces in wave propagation [13,14].Propagation of electrons or light in a weakly scattering medium is a well-studied classical problem related to Anderson localization and caustic formation. Recent experiments in the optical regime [15] have shown clearly both the theoretically predicted light localization features as well as the localizing role of (focusing) nonlinearity in the propagation [15][16][17][18][19][20]. In these experiments a small (of the order of  10 3 ) random variation of the index of refraction in the propagation leads to eventual localization while at higher powers, where nonlinearity is significant, localization is even stronger. Thus, destructive wave interference due to disorder leads to Anderson localization that may be enhanced by self-...

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Formation mechanism of self-organized voids in dielectrics induced by tightly focused femtosecond laser pulses

Cited by 58 publications

References 11 publications

Self-organized voids revisited: Experimental verification of the formation mechanism

Self-organized voids revisited: Experimental verification of the formation mechanism

Several Diffractive Optical Elements Fabricated by Femtosecond Laser Pulses Writing Directly

Extreme events in complex linear and nonlinear photonic media

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