tracking
Search
Lasers Could Turn Earth’s Own Atmosphere Into Defensive Shield
Added Feb 7, 2017 | Rate View top rated
A new lens developed by engineers at BAE Systems (London, UK) could be used as a form of 'deflector shield' to protect aircraft, ships, and land vehicles from incoming attacks by high-power laser weapons that could become a reality in the next fifty years. The Laser Developed Atmospheric Lens (LDAL) concept temporarily changes the Earth’s atmosphere into lens-like structures to magnify or change the path of electromagnetic waves such as light and radio signals. LDAL simulates two existing effects in nature - the reflective properties of the ionosphere and desert mirages - by using a high-pulsed power laser system and exploiting a physics phenomena called the 'Kerr Effect' to heat a small region of atmosphere in a structured way. Mirrors, glass lenses, and structures like Fresnel zone plates could all be replicated using the atmosphere, allowing the physics of refraction, reflection, and diffraction to be exploited.
Be the first to comment. Please sign in to add your thoughts below.
Watch more