scholarly journals A Real-Time Terahertz Time-Domain Polarization Analyzer with 80-MHz Repetition-Rate Femtosecond Laser Pulses

Sensors ◽  
2013 ◽  
Vol 13 (3) ◽  
pp. 3299-3312 ◽  
Author(s):  
Shinichi Watanabe ◽  
Naoya Yasumatsu ◽  
Kenichi Oguchi ◽  
Masatoshi Takeda ◽  
Takeshi Suzuki ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Real Time ◽  
Time Domain ◽  
Repetition Rate ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Polarization Analyzer

Optical breakdown and filamentation of femtosecond laser pulses propagating in air at a kHz repetition rate

2004 ◽  
Vol 13 (3) ◽  
pp. 359-363 ◽  
Author(s):  
Duan Zuo-Liang ◽  
Chen Jian-Ping ◽  
Li Ru-Xin ◽  
Lin Li-Huang ◽  
Xu Zhi-Zhan
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
Optical Breakdown ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

scholarly journals High-Repetition-Rate Femtosecond Laser Processing of Acrylic Intra-Ocular Lenses

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 242 ◽  
Author(s):  
Daniel Sola ◽  
Rafael Cases
Keyword(s):  
Femtosecond Laser ◽  
Repetition Rate ◽  
Laser Processing ◽  
Refractive Index Change ◽  
Laser Pulses ◽  
Processing Parameters ◽  
High Repetition Rate ◽  
Femtosecond Laser Pulses ◽  
Periodic Patterns ◽  
High Repetition

The study of laser processing of acrylic intra-ocular lenses (IOL) by using femtosecond laser pulses delivered at high-repetition rate is presented in this work. An ultra-compact air-cooled femtosecond diode laser (HighQ2-SHG, Spectra-Physics) delivering 250 fs laser pulses at the fixed wavelength of 520 nm with a repetition rate of 63 MHz was used to process the samples. Laser inscription of linear periodic patterns on the surface and inside the acrylic substrates was studied as a function of the processing parameters as well as the optical absorption characteristics of the sample. Scanning Electron Microscopy (SEM) Energy Dispersive X-ray Spectroscopy (EDX), and micro-Raman Spectroscopy were used to evaluate the compositional and microstructural changes induced by the laser radiation in the processed areas. Diffractive characterization was used to assess 1st-order efficiency and the refractive index change.

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