Characterisation of thin films obtained by laser ablation of Ge28Se60Sb12 glasses

Ureña, A.; Piarristeguy, Andréa; Fontana, M.; Vigreux, Caroline; Pradel, Annie; Arcondo, B.

doi:10.1016/j.jpcs.2007.03.021

Cited by 11 publications

(5 citation statements)

References 20 publications

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“…Recently, IR optical fibers have been successfully made from these glasses [5,6]. Most of the optical studies on Ge 28 Se 60 Sb 12 were done on bulk and thin films prepared by thermal evaporation, sputtering or pulsed laser deposition [7]. However, the ultimate effect of such a high-temperature preparation method upon the structure, and thus properties, of the thin films cannot be ignored.…”

Section: Introductionmentioning

confidence: 99%

Reverse saturable absorption in nano colloidal Ge28Sb12Se60 chalcogenide glass

Tintu

Nampoori

Radhakrishnan

et al. 2011

Journal of Non-Crystalline Solids

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Section: Introductionmentioning

confidence: 99%

Reverse saturable absorption in nano colloidal Ge28Sb12Se60 chalcogenide glass

Tintu

Nampoori

Radhakrishnan

et al. 2011

Journal of Non-Crystalline Solids

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“…Instrument applications employing ChG generally request the glass to be processed into the forms of fibre or thin film. Traditionally, Ch-films are collected by physical vapour deposition (PVD) methods like thermal vaporization, pulsed laser deposition or sputtering from the bulk melt quenched ChG [139][140][141][142][143]. In general, when the laser deposition and sputtering matter they are largely restricted to 2-D surfaces and need high-vacuum processing and sometimes difficult target preparation.…”

Section: Recent Trends In Chgsmentioning

confidence: 99%

Chalcogenide Glasses

Karasu¹,

ERKOL²,

YANAR³

2019

El-Cezeri Fen Ve Mühendislik Dergisi

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Chalcogenide glasses, which are among the technologically very important materials, contain at least one chalcogen element as a major constituent and their utilization ranges from infrared (IR) optics applications to phase-change, optical-electrical data-recording. The interest to spectacle glasses exhibiting transparency in the IR region of the optical spectrum coincides with the mid-twentieth century. Firstly, heavy metal oxides were investigated and the transparency limit was extended from 3-5 μm (classical oxide glasses) to 7-8 μm wavelength. The widespread usage of infrared optics in the 20 th century has led to the need for new IR materials and to increase the IR transparency limit over 8 μm and scientists have tried chemical compositions of S, Se and Te in the 6 th group of the periodic table. Compared to oxide glasses, their mechanical strength and thermal stability are considerably lower and the calorimetric glasses form a new glass group with semiconductor properties. In this article, a brief overview of the definition, historical development, structure, properties and potential applications of chalcogenide glasses dating back to the early 1950s is given.

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“…1. Este equipamiento ha jugado un rol clave en la síntesis de nuevos materiales durante los últimos años [2,[24][25][26][27][28][29] y se encuentra disponible para toda la comunidad científica de la región (desde 2016 el láser pertenece al Sistema Nacional de Láseres de la República Argentina [30]).…”

Section: Introductionunclassified

Control System for the Synthesis of Thin Films by Pulsed Laser Deposition

Garrido

Kuo

Silveyra

2020

IEEE Latin Am. Trans.

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The pulsed laser ablation process is a widely used technique for thin films deposition. In this method, a pulsed laser beam focuses onto a target ablating the impact site, called spot. Since preparing the target is a highly time consuming and expensive task, the spot is generally scanned across the target's surface. A typical pulsed laser deposition configuration has a moving mirror that scans the laser beam across a rotating target. We propose ablating the target with a spiral pattern to ensure a uniform ablation and maximizing the target's efficiency. This requires moving the mirror and target in sync with variable speeds. To this end, we designed and built robust electromechanical actuators driven by stepper motors, which are electronically controlled by an Arduino-based system. The core of the firmware is a precalculated lookup table with the time intervals between the motors' steps. Thus, motor control following computationally expensive positioning functions -as the spiral pattern-are not a problem. Users may operate the control system through a user-friendly interface. The modular firmware architecture facilitates future extensions as, for example, adding other motor positioning functions to enable different ablation patterns for research purposes. This development aims to be a valuable tool for the synthesis of thin films by pulsed laser deposition.

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Characterisation of thin films obtained by laser ablation of Ge28Se60Sb12 glasses

Cited by 11 publications

References 20 publications

Reverse saturable absorption in nano colloidal Ge28Sb12Se60 chalcogenide glass

Reverse saturable absorption in nano colloidal Ge28Sb12Se60 chalcogenide glass

Chalcogenide Glasses

Control System for the Synthesis of Thin Films by Pulsed Laser Deposition

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