Goods & Service Tax (GST) 8 November 2026
Phase‑Change Nanoresonators Cut Energy Use in Silicon Photonics
Simulations demonstrate that germanium‑antimony‑telluride (GST) phase‑change nanoresonators integrated on silicon waveguides can provide non‑volatile, energy‑efficient trimming of photonic circuits. The 0.4 µm wide, 0.18 µm thick devices enable low‑power reconfiguration without continuous bias.
Phase‑change nanoresonators made of GST are modeled on silicon waveguides to act as non‑volatile trims. Simulations show they can switch states with minimal energy, keeping the photonic circuit tuned without constant power.
- Waveguide cross‑section: 0.4 µm width, 0.18 µm thickness
- Both straight bus and microring configurations tested
- Energy consumption drops dramatically compared to thermo‑optic tuning
The results, detailed in the Bioengineer.org article, suggest a path toward scalable, low‑power photonic processors.
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