[INVITED] Ultrafast laser micro- and nano-processing with nondiffracting and curved beams

Courvoisier, F.; Stoian, Razvan; Couairon, Arnaud

doi:10.1016/j.optlastec.2015.11.026

Cited by 99 publications

(44 citation statements)

References 165 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ultrafast laser material processing has undergone an important improvement with the development of nondiffracting beams. These beams enable overcoming many of the difficulties usually encountered with standard Gaussian beam focusing in materials [4]. In particular, finite-energy Bessel beams (BB) [5] have been the object of intense research and applications in different fields.…”

Section: Introductionmentioning

confidence: 99%

Etching and drilling of through-holes in thin glass by means of picosecond Bessel beams

2019

View full text Add to dashboard Cite

In this paper, we present a laser etching and drilling technique for thin glass materials based on the use of finite-energy pulsed Bessel beams orthogonally impinging on the sample surface. Thanks to the elongated focal zone of the quasinon-diffractive beam, the laser processing can be performed without scanning the beam position along the thickness of the transparent material sample, but simply moving the sample in the plane orthogonal to the beam. We first present the results of single-shot glass microfabrication performed to identify the optimal laser parameters needed for an efficient internal material ablation. We then describe the micromachining technique used for etching the dielectric material at glass-air interfaces and for generating, without chemical etching, through-holes in thin glasses.

show abstract

Section: Introductionmentioning

confidence: 99%

Etching and drilling of through-holes in thin glass by means of picosecond Bessel beams

2019

View full text Add to dashboard Cite

show abstract

“…An optical vortex beam is a structured beam with a spiral phase e −ilϕ in the azimuthal direction ϕ perpendicular to the propagation direction [1][2][3]. These beams carrying an orbital angular momentum (OAM) of lℏ per photon have opened a route to many promising applications, such as optical communication [4][5][6][7][8], laser ablation [9][10][11][12] and micromanipulation [13][14][15]. These applications can benefit from technologies of optical vortex generation which can be divided into external modulation outside the cavity [16][17][18][19][20] and direct generation within the cavity [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

High-gain amplification for femtosecond optical vortex with mode-control regenerative cavity

et al. 2020

View full text Add to dashboard Cite

Ultra-intense femtosecond vortex pulses can provide an opportunity to investigate the new phenomena with orbital angular momentum (OAM) involved in extreme cases. This paper reports a high gain optical vortex amplifier for intense femtosecond vortex pulses generation. Traditional regeneration amplifiers can offer high gain for Gaussian mode pulses but cannot amplify optical vortex pulses while maintaining the phase singularity because of mode competition. Here, we present a regeneration amplifier with a ringshaped pump. By controlling the radius of the pump, the system can realize the motivation of LG0,1(-1) mode and the suppression of Gaussian mode. Without seeds, the amplifier has a donut-shaped output containing two opposite OAM states simultaneously, as our prediction by simulation. If seeded a pulse of a topologic charge of 1 or-1, the system will output an amplified LG0,1(-1) mode pulse with the same topologic charge as the seed. To our knowledge, this amplifier can offer the highest gain as 1.45×10 6 for optical vortex amplification. Finally, we obtain a 1.8 mJ, 51 fs compressed optical vortex seeded from a 2 nJ optical vortex.

show abstract

“…Moreover, they have the capability to reconstruct themselves behind a small obstacle, exhibiting high robustness during propagation [2]. These features make Bessel beams attractive in the field of super-resolution imaging [3], optical manipulation [4,5], and laser machining [6][7][8][9][10]. In the context of deep drilling with ultrafast laser pulse in transparent materials, zero-order Bessel beam shows its decisive advantages over Gaussian beam, that can be summarized in terms of penetration geometry, nonlinear robustness and interaction phenomenology [11,12].…”

Section: Introductionmentioning

confidence: 99%

Truncated Gaussian-Bessel beams for short-pulse processing of small-aspect-ratio micro-channels in dielectrics

Liu¹,

Li²,

Sikora³

et al. 2019

Opt. Express

Self Cite

View full text Add to dashboard Cite

In order to control the length of micro-channels ablated at the surface of dielectrics, we use annular filtering apertures for tailoring the depth of focus of micrometric Gaussian-Bessel beams. We identify experimentally and numerically the appropriate beam truncation that promotes a smooth axial distribution of intensity with a small elongation, suitable for processing micro-channels of small aspect ratio. Single-shot channel fabrication is demonstrated on the front surface of a fused silica sample, with sub-micron diameter, highquality opening, and depth of few micrometers, using 1 ps low-energy (< 0.45 µJ) pulse. Finally, we realize 10 × 10 matrices of densely packed channels with aspect ratio ~5 and a spatial period down to 1.5 μm, as a prospective demonstration of direct laser fabrication of 2D photonic-crystal structures.

show abstract

[INVITED] Ultrafast laser micro- and nano-processing with nondiffracting and curved beams

Cited by 99 publications

References 165 publications

Etching and drilling of through-holes in thin glass by means of picosecond Bessel beams

Etching and drilling of through-holes in thin glass by means of picosecond Bessel beams

High-gain amplification for femtosecond optical vortex with mode-control regenerative cavity

Truncated Gaussian-Bessel beams for short-pulse processing of small-aspect-ratio micro-channels in dielectrics

Contact Info

Product

Resources

About