Birefringence analysis of aluminum-to-BK7 bonding methods under thermal stress

Nathan Macleod; Samuel Hann; Adrian Dzipalski; Ian F. Elder; Ian J. Thomson; Nicholas J. Weston; Richard Carter; Robert A. Lamb; Duncan Paul Hand; Michael Troughton; Matthew Jan Daniel Esser

doi:10.1364/OPTCON.473762

Birefringence analysis of aluminum-to-BK7 bonding methods under thermal stress

Nathan Macleod, Samuel Hann, Adrian Dzipalski, Ian F. Elder, Ian J. Thomson, Nicholas J. Weston, Richard Carter, Robert A. Lamb, Duncan Paul Hand, Michael Troughton, Matthew Jan Daniel Esser

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Abstract

Ultrafast laser welding, hydroxide catalysis bonding (HCB) and adhesive bonding techniques were used to bond N-BK7 cubes to aluminum bases. Using a thermal chamber and polariscope, the stress induced birefringence was measured at temperatures from -50°C to +80°C. Adhesive samples made with different industrial assembly methods were compared for thermal birefringent behavior. An ultrafast laser welded sample was thermally cycled in increasing temperature ranges, surviving the test with reduced retardation, indicating fatigue. An HCB sample was thermally cycled like the laser welded sample, and had a linear birefringent relation to temperature initially, and failed by fatigue after a fracture event.

Original language	English
Pages (from-to)	2621-2636
Number of pages	16
Journal	Optics Continuum
Volume	1
Issue number	12
DOIs	https://doi.org/10.1364/OPTCON.473762
Publication status	Published - 15 Dec 2022

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10.1364/OPTCON.473762Licence: CC BY

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title = "Birefringence analysis of aluminum-to-BK7 bonding methods under thermal stress",

abstract = "Ultrafast laser welding, hydroxide catalysis bonding (HCB) and adhesive bonding techniques were used to bond N-BK7 cubes to aluminum bases. Using a thermal chamber and polariscope, the stress induced birefringence was measured at temperatures from -50°C to +80°C. Adhesive samples made with different industrial assembly methods were compared for thermal birefringent behavior. An ultrafast laser welded sample was thermally cycled in increasing temperature ranges, surviving the test with reduced retardation, indicating fatigue. An HCB sample was thermally cycled like the laser welded sample, and had a linear birefringent relation to temperature initially, and failed by fatigue after a fracture event.",

author = "Nathan Macleod and Samuel Hann and Adrian Dzipalski and Elder, {Ian F.} and Thomson, {Ian J.} and Weston, {Nicholas J.} and Richard Carter and Lamb, {Robert A.} and Hand, {Duncan Paul} and Michael Troughton and Esser, {Matthew Jan Daniel}",

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T1 - Birefringence analysis of aluminum-to-BK7 bonding methods under thermal stress

AU - Macleod, Nathan

AU - Hann, Samuel

AU - Dzipalski, Adrian

AU - Elder, Ian F.

AU - Thomson, Ian J.

AU - Weston, Nicholas J.

AU - Carter, Richard

AU - Lamb, Robert A.

AU - Hand, Duncan Paul

AU - Troughton, Michael

AU - Esser, Matthew Jan Daniel

PY - 2022/12/15

Y1 - 2022/12/15

N2 - Ultrafast laser welding, hydroxide catalysis bonding (HCB) and adhesive bonding techniques were used to bond N-BK7 cubes to aluminum bases. Using a thermal chamber and polariscope, the stress induced birefringence was measured at temperatures from -50°C to +80°C. Adhesive samples made with different industrial assembly methods were compared for thermal birefringent behavior. An ultrafast laser welded sample was thermally cycled in increasing temperature ranges, surviving the test with reduced retardation, indicating fatigue. An HCB sample was thermally cycled like the laser welded sample, and had a linear birefringent relation to temperature initially, and failed by fatigue after a fracture event.

AB - Ultrafast laser welding, hydroxide catalysis bonding (HCB) and adhesive bonding techniques were used to bond N-BK7 cubes to aluminum bases. Using a thermal chamber and polariscope, the stress induced birefringence was measured at temperatures from -50°C to +80°C. Adhesive samples made with different industrial assembly methods were compared for thermal birefringent behavior. An ultrafast laser welded sample was thermally cycled in increasing temperature ranges, surviving the test with reduced retardation, indicating fatigue. An HCB sample was thermally cycled like the laser welded sample, and had a linear birefringent relation to temperature initially, and failed by fatigue after a fracture event.

U2 - 10.1364/OPTCON.473762

DO - 10.1364/OPTCON.473762

M3 - Article

SN - 2770-0208

VL - 1

SP - 2621

EP - 2636

JO - Optics Continuum

JF - Optics Continuum

IS - 12

ER -

Birefringence analysis of aluminum-to-BK7 bonding methods under thermal stress

Abstract

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