研究目的
Investigating the optical properties of channel waveguides written using a femtosecond laser in tellurite-zinc glasses doped with metallic silver.
研究成果
Channel waveguides written into tellurite glasses doped with metallic silver exhibited lower optical insertion losses and greater refractive index change when properly choosing the parameters and glassy matrix. The presence of silver nanoparticles improved the optical properties of some glassy matrices, suggesting their potential for enhancing waveguide technology.
研究不足
The study was limited to tellurite-zinc glasses doped with metallic silver. The effects of other dopants or glass matrices were not explored. Additionally, the resolution of the detection system limited the measurement of very slight changes in the refractive index.
1：Experimental Design and Method Selection:
The study involved writing channel waveguides into binary tellurite-zinc glasses doped with metallic silver using a femtosecond laser. The optical properties of these waveguides were then characterized.
2：Sample Selection and Data Sources:
The glassy matrices with a nominal composition of 60TeO2?40ZnO (mol%) and 80TeO2?20ZnO (mol%) were synthesized and doped with 0.1 wt% of Ag.
3：1 wt% of Ag.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: A microfabrication workstation (μFab Workstation - NEWPORT) and a femtosecond laser (Spirit-One – SPECTRA PHYSICS) operating at 1040 nm were used. Other equipment included a UV-VIS-NIR spectrophotometer (Shimadzu UV-3600), a LabRAM HR Evolution (HORIBA, Japan), and a JY-T64000 micro-Raman spectrometer.
4：Experimental Procedures and Operational Workflow:
Waveguides were written into the samples with transversal incidence and no use of beam shaping techniques. The waveguides were composed by two single parallel lines separated by 20 μm and written 200 μm beneath the glass surface.
5：Data Analysis Methods:
The optical losses and refractive index changes were measured and analyzed to understand the effects of silver doping and laser writing parameters on the waveguide properties.
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