Femtosecond pulse laser-induced self-organized nanogratings on the surface of a ZnSe crystal
- First Online:
- Cite this article as:
- Ma, H., Guo, Y., Zhong, M. et al. Appl. Phys. A (2007) 89: 707. doi:10.1007/s00339-007-4147-x
- 96 Downloads
Periodic nanostructures are observed on the surface of ZnSe after irradiation by a focused beam of a femtosecond Ti:sapphire laser, which are aligned perpendicular to the laser polarization direction. The period of self-organized grating structures is about 160 nm. The phenomenon is interpreted in terms of interference between the incident light field and the surface scattered wave of 800-nm laser pulses. With the laser polarization parallel to the moving direction we produce long-range Bragg-like gratings by slowly moving the crystal under a fixed laser focus. The nanograting orientation is adjusted by laser polarization and the accumulation effect.