Unverified50% confidenceFactExact time

光学SETI项目使用高速光子计数探测器，能够识别持续仅数纳秒的激光脉冲

1

Sources

50%

Confidence

Long-term

Relevance

8/27/2026

First Seen

Sources

Why Alien Civilizations Might Use Lasers Instead of Radio for Communication

Related Entities

光学SETIconcept

Related Claims

Unverified激光雷达通过主动发射激光脉冲并测量返回时间获取距离信息，测距精度可达厘米级甚至毫米级，且不受光照条件影响75% similar Unverified可见光或近红外激光波长约0.5-1.5微米，比射电波（厘米到米级）短数万倍，使同口径发射器产生的激光束发散角可小到纳弧度量级71% similar

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