In this work, the interaction of a pulsed Er:YAG (2940 nm) laser beam with mockups of poly(vinyl alcohol) (PVOH) has been investigated. Online time-resolved temperature peaks induced by single-pulse laser irradiations were measured for the first time by developing a dedicated setup based on a fast IR detector. Tests were performed using fluences ranging between 1.1-2.8 J/cm2 and pulse durations of 160-430μs. A multiple heterojunction IR photovoltaic detector with bandwidth 2-12 μm and rise time <7 ns was used to study the surface temperature transient upon Er:YAG laser irradiation of PVOH. Tests and thermal modelling allowed us to verify the effectiveness and reliability of the novel sensor developed
Measurement of temperature gradients during Er: YAG laser irradiation of poly (vinyl alcohol)
C. Chillè
;J. Agresti
;D. Ciofini;A. A. Mencaglia;I. Osticioli;S. Siano
2022
Abstract
In this work, the interaction of a pulsed Er:YAG (2940 nm) laser beam with mockups of poly(vinyl alcohol) (PVOH) has been investigated. Online time-resolved temperature peaks induced by single-pulse laser irradiations were measured for the first time by developing a dedicated setup based on a fast IR detector. Tests were performed using fluences ranging between 1.1-2.8 J/cm2 and pulse durations of 160-430μs. A multiple heterojunction IR photovoltaic detector with bandwidth 2-12 μm and rise time <7 ns was used to study the surface temperature transient upon Er:YAG laser irradiation of PVOH. Tests and thermal modelling allowed us to verify the effectiveness and reliability of the novel sensor developed| File | Dimensione | Formato | |
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