Writing of two-dimensional crystal curved lines at the surface of Sm2O3–Bi2O3–B2O3 glass by samarium atom heat processing

Abstract Two-dimensional crystal curved lines consisting of the nonlinear optical Sm x Bi 1− x BO 3 phase are fabricated at the surface of 8Sm 2 O 3 ·37Bi 2 O 3 ·55B 2 O 3 glass by continuous wave Nd:YAG laser (wavelength: 1064 nm) irradiation (samarium atom heat processing) with a power of ∼0.9 W and a laser scanning speed of 5 μm/s. The curved lines with bending angles of 0–90° or with sine-shapes are written by just changing the laser scanning direction. The polarized micro-Raman scattering spectra for the line after bending are the same as those for the line before bending, indicating that the crystal plane of Sm x Bi 1− x BO 3 crystals to the crystal growth direction might be maintained even after the change in the laser scanning direction. It is found from laser scanning microscope observations that the crystal lines at the surface are swelled out smoothly, giving a height of about 10 μm.

[1]  J. Nishii,et al.  Femtosecond laser-assisted three-dimensional microfabrication in silica. , 2001, Optics letters.

[2]  J. Nishii,et al.  Three-dimensional hole drilling of silica glass from the rear surface with femtosecond laser pulses. , 2001, Optics letters.

[3]  T. Komatsu,et al.  Nonlinear optical crystal-line writing in glass by yttrium aluminum garnet laser irradiation , 2003 .

[4]  T. Yoko,et al.  Three-Dimensional Microdrilling of Glass by Multiphoton Process and Chemical Etching , 1999 .

[5]  T. Komatsu,et al.  New optical nonlinear crystallized glasses and YAG laser-induced crystalline dot formation in rare-earth bismuth borate system , 2002 .

[6]  Takumi Fujiwara,et al.  Second-order optical nonlinearities of metastable BiBO3 phases in crystallized glasses , 2004 .

[7]  Perry,et al.  Laser-induced damage in dielectrics with nanosecond to subpicosecond pulses. , 1995, Physical review letters.

[8]  Gerard Mourou,et al.  Laser‐induced breakdown by impact ionization in SiO2 with pulse widths from 7 ns to 150 fs , 1994 .

[9]  T. Komatsu,et al.  YAG laser-induced crystalline dot patterning in samarium tellurite glasses , 2001 .

[10]  T. Komatsu,et al.  Formation of nonlinear optical KSm(PO3)4 crystals in phosphate glasses by YAG laser irradiation , 2004 .

[11]  T. Komatsu,et al.  Optical Nonlinear Crystalline Dot and Line Patterning in Samarium Bismuth Borate Glasses by YAG Laser Irradiation , 2002 .

[12]  Eric Mazur,et al.  Morphology of femtosecond laser-induced structural changes in bulk transparent materials , 2004 .

[13]  T. Komatsu,et al.  Micro-Raman and photoluminescence spectra of Sm3+-doped β-BaB2O4 crystal lines written by YAG laser irradiation in glass , 2004 .

[14]  Heike Ebendorff-Heidepriem,et al.  Laser writing of waveguides in photosensitive glasses , 2004 .

[15]  K. Miura,et al.  Writing waveguides in glass with a femtosecond laser. , 1996, Optics letters.

[16]  T. Komatsu,et al.  Technique for writing of nonlinear optical single-crystal lines in glass , 2003 .