Journal
OPTICS LETTERS
Volume 47, Issue 5, Pages 1242-1245Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.449486
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Funding
- Centre National de la Recherche Scientifique (Intrumentation aux Limites)
- Agence Nationale de la Recherche [ANR-18-CE08-0004-01]
- Institut de Chimie (IEA INC)
- Agence Nationale de la Recherche (ANR) [ANR-18-CE08-0004] Funding Source: Agence Nationale de la Recherche (ANR)
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This paper investigates the lifetime prediction of nanogratings written in silica glass using an infrared femtosecond laser. The accelerated aging experiments and monitoring of characteristic birefringence show that these nanostructures can survive for a considerable amount of time at high temperatures, with an estimated lifespan of over 10 years after a special treatment.
This paper is dedicated to the lifetime prediction of Type II modifications (i.e., nanogratings) written in silica glass using an infrared femtosecond laser. Herein we report accelerated aging experiments of such nanogratings through the monitoring of their characteristic linear birefringence signature. Based on the master curve formalism, we demonstrate that these laser-induced nanostructures can survive for 200 hours at 1100 degrees C. Under the reported processing conditions and after a dedicated passivation treatment, the estimated lifetime of the birefringent optical elements is beyond 10 years at 800 degrees C with a minor erasure of 7%. (C) 2022 Optica Publishing Group
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