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Sub-micron-structure machining on silicon by femtosecond laser Hung-Yin TSAI 1, Shao-Wei LUO1, Chih-Wei WU 2, Shing-Hoa WANG 2 1. Department of Power Mechanical Engineering, National...-micron-structure machining on silicon substrate was studied by direct writing system of femtosecond laser with the central wavelength of 800 nm, pulse duration of 120 fs and repetition rate of 1 kHz......
Theoretical and experimental study of energy transportation and accumulation in femtosecond laser ablation on metals TAN Xin-yu(谭新玉)1, 2,ZHANG Duan-ming(张端明)3, MAO Feng(毛 峰)1, LI Zhi...: The energy transportation and accumulation effect for femtosecond (fs) laser ablation on metal targets were studied using both theoretical and experimental methods. Using finite difference method, numerical......
Trans. Nonferrous Met. Soc. China 22(2012) s801-s807 Surface effects of hybrid vibration-assisted femtosecond laser system for micro-hole drilling of copper substrate Jung-Kyu PARK1, 2, Ji-Woon YOON1... with a low frequency (500 Hz) and various displacements (0-16.5 μm) during a femtosecond laser machining process. The laser used in this experiment is an amplified Ti:sapphire femtosecond (10-15 s) laser......
Trans. Nonferrous Met. Soc. China 22(2012) s808-s812 Internal modification in transparent hybrid germanium-silica plates using plasma formation induced by a femtosecond laser Ji-Wook YOON 1, Jung-Kyu... plasma formation excited by a high-intensity femtosecond (150 fs) Ti: sapphire laser (λp=790 nm). The refractive index modifications with diameters ranging from 400 nm to 3 μm were photoinduced after......
Phase changes in Ge1Sb2Te4 films induced by single femtosecond laser pulse irradiation HUANG Su-mei (黄素梅), SUN Zhuo (孙 卓), JIN Cai-xia(靳彩霞), HUANG Shi-yong(黄士勇),CHEN Yi-wei (陈奕卫... femtosecond laser exposure were investigated. The system has a multilayer structure of air/10 nm ZnS–SiO2/80 nm Ge1Sb2Te4/80 nm ZnS–SiO2/0.6 mm polycarbonate substrate. The morphology and contrast of marks......
Optical diffraction gratings embedded in BK-7 glass by low-density plasma formation using femtosecond laser Jung-Kyu PARK1, Sung-Hak CHO1, Kwang-Ho KIM2, Myung-Chang KANG2 1. Nano Machining... plasma formation excited by a high-intensity femtosecond (130 fs) Ti: sapphire laser (λp=790 nm). The refractive index modifications with diameters ranging from 400 nm to 4 μm were photoinduced......
Laser ablation and structuring of CdZnTe with femtosecond laser pulsesJ.J.J.Nivas1,2,E.Allahyari1,2,Q.Hao4,S.Amoruso1,2,X.Wang2,51. Dipartimento di Fisica "Ettore Pancini", Università di Napoli... an experimental investigation on laser ablation and associated surface structuring of CdZnTe by femtosecond Ti:Sa laser pulses(laser wavelength λ≈800 nm,≈35 fs,10 Hz),in air.By exploiting different static......
Ce(DBM)3Phen doped poly(methyl methacrylate) for three-dimensional multilayered optical memory by femtosecond laser JIU Hongfang1,ZHANG Lixin2 (1.Department of Chemistry, North University of China... femtosecond laser irradiation were discussed. An ultrashort-pulsed laser beam with a pulse width of 200 femtosecond at a wavelength of 800 nm was focused into doped PMMA. The large changes in refractive......
Femtosecond Laser Induced Precipitation of LiNbO3 Crystals in Sm3+-doped Li2O-Nb2O5-SiO2 Glass滕宇,邱建荣摘 要:<正>A femtosecond laser with 800 nm,250 kHz... the glass.After 20 second irradiation,a red and blue emission began to emerge.From the micro-Raman spectra,we found that the crystal spot has formed at the focal point of the femtosecond laser beam......
Three-dimensional Deposition of Silicon Structure from Silicate Glass with Dispersed Metallie Muminum by Femtosecond Laser IrradiationMasashi Hamabe,Kiyotaka Miura,Yasuhiko Shimotsum,Masaaki Sakakura... in the starting material,using femtosecond laser irradiation.Small Si-rich structures such as Si clusters were transformed into larger,but still nano-sized,Si particles by laser irradiation.These structures grew......
