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Mid-IR emission from integrated rare earth (Dy3+, Pr3+)-doped chalcogenides waveguides for sensing applications
Authors: Bodiou Loic | Baillieul Marion | Nazabal Virginie | Lemaitre Jonathan | Benardais Albane | Meziani Sofiane | Lorrain Nathalie | Dumeige Yannick | Němec Petr | Charrier Joel
Year: 2022
Type of publication: článek ve sborníku
Name of source: Proceedings of SPIE, volume 12148
Publisher name: SPIE - The International Society for Optical Engineering
Place: Bellingham
Page from-to: 1214802
Titles:
Language Name Abstract Keywords
cze Mid-IR emise integrovaných chalkogenidových vlnovodů dotovaných ionty vzácných zemin (Dy3+, Pr3+) pro senzory Střední infračervená (mid-IR) spektrální oblast má velký význam pro řadu vědných a technologických oblastí protože zahrnuje dvě oblasti propustnosti (3-5 and 8-13 mu m) zemské atmosféry a silné charakteristické vibrační přechody způsobené řadou molekul. Ionty Praseodymu (Pr3+) a Dysprosia (Dy3+) mají charakteristické přechody v mid-IR a materiály na bázi chalkogenidů mají širokou oblast propustnosti v této oblasti. Kombinace efektivních vlnovodových vlastností s emitory mid-IR světla je tedy klíčem k vývoji mid-IR senzorů pro zdravotnictví, obranu a environmentální aplikace. Mid-IR; ionty vzácných zemin; Praseodym; Dysprosium; chalkogenidy; atmosférické senzory
eng Mid-IR emission from integrated rare earth (Dy3+, Pr3+)-doped chalcogenides waveguides for sensing applications The mid-infrared (mid-IR) spectral region is of great interest to many areas of science and technology as it contains two important transparency windows (3-5 and 8-13 mu m) of the Earth's atmosphere and strong characteristic vibrational transitions displayed by a large number of molecules. Praseodymium (Pr3+) and dysprosium (Dy3+) ions feature characteristic transitions in the mid-IR and transmission range of chalcogenides-based materials spans a large part of the mid-IR. The combination of efficient waveguiding properties with mid-IR light emitters would therefore be a key enabler of the development of mid-IR sensors-on-a-chip for health, security and environmental applications. In this paper, RF magnetron co-sputtering is used to deposit a Dy3+/Pr-3 broken vertical bar-doped chalcogenides guiding layer based on the quaternary system composed of Ga, Ge, Sb and Se atoms on silica cladding layer. The fabrication process of straight ridge waveguides using photolithography and RIE/ICP dry etching is then described. Finally, Dy3+ and Pr3+ mid-IR guided photoluminescence around 2.5 and 4.5 mu m is demonstrated at room temperature using co-propagating pumping at telecommunication wavelengths ( respectively around 1.3 and 1.55 mu m). Mid-infrared; Rare-earth ions; Praseodymium; Dysprosium; chalcogenides; atmospheric sensing

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