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Microhole-pair hollow core fiber Fabry–Perot interferometer micromachining by a femtosecond laser

Sensors and Actuators A: Physical
February 2020

This study presents a sensitive and high-response microhole-pair (MP) hollow-core fiber (HCF) Fabry–Perot (FP) interferometer (MPHCFFPI) by microdrilling two holes symmetrically on the sidewall of the HCF via a femtosecond laser micromachining technique.

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Real-time spectral response guided smart femtosecond laser bone drilling

Optics and Lasers in Engineering

May 2020

Bone drilling is a common surgical procedure of knee arthroplasty, craniotomy, stapedotomy, dental treatment, and laminotomy. Although femtosecond laser processing provides a promising method for precision bone drilling, it is still challenging to achieve thermal accumulation suppression and damage protection for large-scale hole drilling.

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Femtosecond laser surface irradiation of silicon in air: Pulse repetition rate influence on crater features and surface texture

The influence of the pulse repetition rate on laser irradiation of silicon, in air, with femtosecond laser pulses is experimentally investigated in the range 10 Hz – 200 kHz. The features of the produced crater and the laser-induced periodic surface structures generated on its surface are characterized by exploiting surface profilometry and scanning electron microscopy.

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