posted on Mar, 23 2013 @ 12:04 AM
reply to post by samkent
Not necessarily true, one can get around the diffraction limit using a metamaterial lens. Although from what I understand, they have not (publicly)
been able to do this at the visible or near infrared part of the spectrum yet.
"The first superlens (2004) with a negative refractive index provided resolution three times better than the diffraction limit and was demonstrated
at microwave frequencies. In 2005, the first near field superlens (which exceeded the diffraction limit) was demonstrated by N.Fang et al., but the
lens did not rely on negative refraction. Instead, a thin silver film was used to enhance the evanescent modes through surface plasmon coupling."