Seonglae ChoControl lightening by laser
- 레이저 펄스가 하늘로 발사되면 공기의 굴절률 변화로 인해 레이저 펄스가 수축되고 주변의 공기 분자를 이온화함
- 하늘에서 필라멘트라고 부르는 것의 긴 사슬로 이어지며, 공기 분자는 빠르게 가열되고 저밀도 이온화 공기 채널을 남김
- 밀리초 동안 지속되는 이 채널은 주변 공기보다 전기 전도성이 높기 때문에 번개가 따라가기 쉬운 경로를 형성
Detailed Footage Finally Reveals What Triggers Lightning | Quanta Magazine
So Dwyer and his team turned to the Low Frequency Array (LOFAR), a network of thousands of small radio telescopes mostly in the Netherlands. LOFAR usually gazes at distant galaxies and exploding stars. But according to Dwyer, "it just so happens to work really well for measuring lightning, too."
https://www.quantamagazine.org/radio-telescope-reveals-how-lightning-begins-20211220
Dark Lightning: Uncovering the Strongest Energy Discharge on Earth
Thunderstorms are one of the most fascinating meteorological events. They are characterized by their electrical activity in the form of lightning and thunder -caused by the rapid expansion of the air surrounding the path of a lightning bolt. But there is more taking place during a thunderstorm than what you can actually see and hear.
https://interestingengineering.com/dark-lightning-uncovering-the-strongest-energy-discharge-on-earth
Control lightening by laser
Scientists steer lightning bolts with lasers for the first time
Scientists have steered lightning bolts with lasers for the first time in the field, according to a demonstration performed during heavy storms at the top of a Swiss mountain. The feat, which involved firing powerful laser pulses at thunderclouds over several months last year, paves the way for laser-based lightning protection systems at airports, launchpads and tall buildings.
https://www.theguardian.com/science/2023/jan/16/scientists-steer-lightning-bolts-with-lasers-for-the-first-time
Scientists Guide Lightning Bolts With Lasers for the First Time
The technology could one day protect wider areas than metal lightning rods do, perhaps shielding airports and launchpads during storms
https://www.smithsonianmag.com/smart-news/scientists-guide-lightning-bolts-with-lasers-for-the-first-time-180981462
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