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Numerically calculated laser peak intensity distributions at the focus produced by an objective lens (a) without and (b), (c) with spatiotemporal focusing technique in XZ and YZ planes, respectively.

Numerically calculated laser peak intensity distributions at the focus produced by an objective lens (a) without and (b), (c) with spatiotemporal focusing technique in XZ and YZ planes, respectively.

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FIGURE 2. Schematic illustration of the experimental setup used for...
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High-Performance Laser Processing Using Manipulated Ultrafast Laser Pulses
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  • Jul 2012
We employ manipulated ultrafast laser pulses to realize microprocessing with high-performance. Efficient microwelding of glass substrates by irradiation by a double-pulse train of ultrafast laser pulses is demonstrated. The bonding strength of two photostructurable glass substrates welded by double-pulse irradiation was evaluated to be 22.9 MPa, wh...
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... simulation, the spectral bandwidth is set to be 30 nm, and the beam waist and the NA of objective lens are 2W 0 =3 mm and 0.46, respectively, according to our experimental parameters. The details of calculation can be found in Ref. 7. Figure 7(a) shows the peak intensity distribution of ultrafast laser beam focused without the beam shaping, which has a significant elliptical profile at focus. On the other hand, with the temporal focusing scheme, a quite different intensity distribution can be obtained as shown in Figs. ...
Context 2
... parameters. The details of calculation can be found in Ref. 7. Figure 7(a) shows the peak intensity distribution of ultrafast laser beam focused without the beam shaping, which has a significant elliptical profile at focus. On the other hand, with the temporal focusing scheme, a quite different intensity distribution can be obtained as shown in Figs. 7(b) and (c) ((b): xy planes, (c): yz planes). Namely, one can clearly see that a nearly spherical intensity distribution has been obtained with the spatiotemporal ...

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