In-Situ Real-Time Focus Detection during Laser Processing Using Double-Hole Masks and Advanced Image Sensor Software

In modern high-intensity ultrafast laser processing, detecting the focal position of the working laser beam, at which the intensity is the highest and the beam diameter is the lowest, and immediately locating the target sample at that point are challenging tasks. A system that allows in-situ real-ti...

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Bibliographic Details
Main Authors: Binh Xuan Cao, Phuong Le Hoang, Sanghoon Ahn, Jeng-o Kim, Heeshin Kang, Jiwhan Noh
Format: Article
Language:English
Published: MDPI AG 2017-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/17/7/1540