Title :
Optimization of computer-generated hologram using second harmonic generation
Author :
Hasegawa, Satoshi ; Hayasaki, Yoshio
Author_Institution :
Center for Opt. Res. & Educ. (CORE), Utsunomiya Univ., Utsunomiya, Japan
Abstract :
Precise control of a diffraction pattern reconstructed from a computer-generated hologram (CGH) is very important in holographic femtosecond laser processing. To obtain a desired diffraction pattern, an optimization based on an estimation of the second harmonic wave generated by the diffraction pattern in the optical setup is performed, because the phenomena induced by a femtosecond laser pulse is based on nonlinear optical effects. The second harmonic optimization we named is performed experimentally and the effective performance is demonstrated.
Keywords :
computer-generated holography; high-speed optical techniques; light diffraction; optical harmonic generation; optimisation; computer-generated hologram; diffraction pattern reconstruction; femtosecond laser pulse; holographic femtosecond laser processing; nonlinear optical effects; optimization; second harmonic generation; second harmonic wave generation; Diffraction; Holographic optical components; Holography; Optical diffraction; Optical pulses; Optimization; Ultrafast optics; Femtosecond laser processing; computer-generated hologram; holography; spatial light modulator;
Conference_Titel :
Optomechatronic Technologies (ISOT), 2010 International Symposium on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-7684-8
DOI :
10.1109/ISOT.2010.5687366
