Sunday, June 1, 2014

Looking Glass

If photons, as dipoles with positive end spinning, is travelling in the opposite direction to the E field, that means I can make infra red light more penetrating by applying a E field pointed away from the surface to be illuminated.  In general,  photons can be made more penetrating by using an E field directed opposite to its direction of travel.  And, the photons can be focused using such a E field setup.

Imagine, at the aperture of a laser we have the north pole of a strong magnet spinning anti-clockwise.  By the right hand rule we have a emf pointing downwards, because relatively a test positive charge is cutting the B-field clockwise.  But does such a emf exist for real?  It is actually, an E field?