PIB digest for Wednesday, 4 November

Novel Silicon Chip for Future 6G Networks

Ministry of Science & Technology · Science & Tech · Posted 04 NOV 2026 5:22PM

What happened

Researchers at JNCASR have developed a novel silicon chip utilizing topological photonics that allows terahertz waves to pass through engineered barriers with minimal loss while supporting high-speed data transmission up to 100 Gbit/s. This breakthrough paves the way for compact terahertz circuits crucial for future 6G wireless communication networks.

Why it matters for UPSC

This development highlights cutting-edge advancements in indigenous scientific research for next-generation telecommunications (6G networks), directly aligning with the UPSC syllabus topic on developments and applications of science and technology in everyday life.

Key objectives

  1. Demonstrated data transmission at up to 100 Gbit/s across an engineered barrier on a silicon chip using topological photonics.
  2. Achieved very low signal loss (1–2% for a single barrier and 2–3% for two barriers in sequence).
  3. Tested three high-resistivity silicon devices including a double-barrier path, an omega-shaped route with bends, and a power splitter operating across 310–360 GHz.
Novel Silicon Chip for Future 6G Networks | IAS Labs by Aptness.ai