Durability of the refractive index change induced by a single femtosecond laser pulse in glass
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Ultrafast-laser inscribed optical memories have been considered as a high-density low-energy-consumption alternative to the magnetization-based memories. The optical memories are based on laser-induced material modifications resulting in the refractive index change. The long-term stability of such modifications has been indicated by subjecting them to the accelerated aging by annealing at elevated temperatures. Here, the first direct evidence is provided of the durability of the type II refractive index change in BK7 glass. The investigation was performed for over 27 months at room temperature. The results show the existence of the laser pulse intensity threshold above which the magnitude of the index change does not deteriorate with time and, hence, is suitable for optical memory, photonic crystal and fibre-grating writing. © 2019
Ključne reči:
Femtosecond laser writing / Refractive index change / StabilityIzvor:
Optical Materials: X, 2019, 1, 100004-Finansiranje / projekti:
- Fotonika mikro i nano strukturnih materijala (RS-45010)
- Capturing and quantitative analysis of multi-scale multi-channel diagnostic data. (EU-691051)
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https://linkinghub.elsevier.com/retrieve/pii/S2590147819300014https://vinar.vin.bg.ac.rs/handle/123456789/8045
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VinčaTY - JOUR AU - Petrović, Jovana S. PY - 2019 UR - https://linkinghub.elsevier.com/retrieve/pii/S2590147819300014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8045 AB - Ultrafast-laser inscribed optical memories have been considered as a high-density low-energy-consumption alternative to the magnetization-based memories. The optical memories are based on laser-induced material modifications resulting in the refractive index change. The long-term stability of such modifications has been indicated by subjecting them to the accelerated aging by annealing at elevated temperatures. Here, the first direct evidence is provided of the durability of the type II refractive index change in BK7 glass. The investigation was performed for over 27 months at room temperature. The results show the existence of the laser pulse intensity threshold above which the magnitude of the index change does not deteriorate with time and, hence, is suitable for optical memory, photonic crystal and fibre-grating writing. © 2019 T2 - Optical Materials: X T1 - Durability of the refractive index change induced by a single femtosecond laser pulse in glass VL - 1 SP - 100004 DO - 10.1016/j.omx.2019.100004 ER -
@article{ author = "Petrović, Jovana S.", year = "2019", abstract = "Ultrafast-laser inscribed optical memories have been considered as a high-density low-energy-consumption alternative to the magnetization-based memories. The optical memories are based on laser-induced material modifications resulting in the refractive index change. The long-term stability of such modifications has been indicated by subjecting them to the accelerated aging by annealing at elevated temperatures. Here, the first direct evidence is provided of the durability of the type II refractive index change in BK7 glass. The investigation was performed for over 27 months at room temperature. The results show the existence of the laser pulse intensity threshold above which the magnitude of the index change does not deteriorate with time and, hence, is suitable for optical memory, photonic crystal and fibre-grating writing. © 2019", journal = "Optical Materials: X", title = "Durability of the refractive index change induced by a single femtosecond laser pulse in glass", volume = "1", pages = "100004", doi = "10.1016/j.omx.2019.100004" }
Petrović, J. S.. (2019). Durability of the refractive index change induced by a single femtosecond laser pulse in glass. in Optical Materials: X, 1, 100004. https://doi.org/10.1016/j.omx.2019.100004
Petrović JS. Durability of the refractive index change induced by a single femtosecond laser pulse in glass. in Optical Materials: X. 2019;1:100004. doi:10.1016/j.omx.2019.100004 .
Petrović, Jovana S., "Durability of the refractive index change induced by a single femtosecond laser pulse in glass" in Optical Materials: X, 1 (2019):100004, https://doi.org/10.1016/j.omx.2019.100004 . .