Lightsaber Antenna: Laser Ionizes Air for Radio Waves

Known and confirmed

• Researchers demonstrated a plasma filament antenna created by laser-ionized air.
• It allows frequency tuning and beam steering without complex mechanical parts.
• Current demo shows transmission only; potential use in low Earth orbit satellites.

Unknown or unverified

• 接收信号的能力尚未在实验中证实，尽管作者认为可行。
• 大气层内使用的能耗、安全性及环境影响未提及。
• 从实验室演示到太空实际应用的性能稳定性未知。