Formation of in-volume nanogratings in glass induced by spatiotemporally focused femtosecond laser pulses

Abstract We present comparative investigations on the formation of in-volume nanogratings in a porous glass with both conventionally and spatiotemporally focused femtosecond laser pulses. Our results show that despite the different spatiotemporal characteristics of the light fields produced at the foci with the two focusing schemes, nanogratings can be formed in both cases, whereas their structural features are different. We discuss the physical mechanism behind the experimental observations.

[1]  Ya Cheng,et al.  Onset of nonlinear self-focusing of femtosecond laser pulses in air: Conventional vs spatiotemporal focusing , 2015 .

[2]  K. Sugioka,et al.  Formation of in-volume nanogratings with sub-100-nm periods in glass by femtosecond laser irradiation. , 2015, Optics letters.

[3]  K. Sugioka,et al.  High-fidelity visualization of formation of volume nanogratings in porous glass by femtosecond laser irradiation , 2015 .

[4]  Peter G. Kazansky,et al.  Ultrafast laser direct writing and nanostructuring in transparent materials , 2014 .

[5]  F. He,et al.  Interferometric characterization of pulse front tilt of spatiotemporally focused femtosecond laser pulses. , 2014, Optics express.

[6]  Koji Sugioka,et al.  Characterization and control of peak intensity distribution at the focus of a spatiotemporally focused femtosecond laser beam. , 2014, Optics express.

[7]  Feng Chen,et al.  Optical waveguides in crystalline dielectric materials produced by femtosecond‐laser micromachining , 2014 .

[8]  F. He,et al.  Direct laser writing of sub-50 nm nanofluidic channels buried in glass for three-dimensional micro-nanofluidic integration. , 2013, Lab on a chip.

[9]  K. Sugioka,et al.  Femtosecond laser nanostructuring in porous glass with sub-50 nm feature sizes. , 2012, Optics letters.

[10]  Peter G. Kazansky,et al.  Radially polarized optical vortex converter created by femtosecond laser nanostructuring of glass , 2011 .

[11]  R. Osellame,et al.  Femtosecond laser microstructuring: an enabling tool for optofluidic lab‐on‐chips , 2011 .

[12]  Yves Bellouard,et al.  Spatio-temporally focused femtosecond laser pulses for nonreciprocal writing in optically transparent materials. , 2010, Optics express.

[13]  Masaaki Sakakura,et al.  Ultrafast Manipulation of Self‐Assembled Form Birefringence in Glass , 2010, Advanced materials.

[14]  Koji Sugioka,et al.  Fabrication of microfluidic channels with a circular cross section using spatiotemporally focused femtosecond laser pulses. , 2010, Optics letters.

[15]  James A. Piper,et al.  Ultrafast laser written active devices , 2009 .

[16]  Eric Mazur,et al.  Femtosecond laser micromachining in transparent materials , 2008 .

[17]  P. Corkum,et al.  Optically produced arrays of planar nanostructures inside fused silica. , 2006, Physical review letters.

[18]  Y. Shimotsuma,et al.  Self-organized nanogratings in glass irradiated by ultrashort light pulses. , 2003, Physical review letters.

[19]  Peter G. Kazansky,et al.  Anomalous anisotropic light scattering in Ge-doped silica glass , 1999 .

[20]  T. Elmer.  Porous and Reconstructed Glasses , 1999 .