Recent content by Ricvil

Thank you for the answer. About the HE11 in the article, it is obtained from TM11 resulting from the first stage of conversion, TE01-TM11-HE11.

http://ir.hfcas.ac.cn/bitstream/334002/12022/1/Mode%20converters%20for%20generating%20the%20HE%2011%20%28gaussian%20like%29%20mode%20from%20TE%2001%20in%20a%20circular%20waveguide.pdf In the above article, the mode coupling theory shows how a bended circular waveguide transforms a TE01 mode...

This appears a initial good reference. http://cqdmp.research.wesleyan.edu/research/pt-symmetry/

There are very results published about PT symmetry breaking in optical systems, with effects like anysotropical transmission resonance in waveguides. But if PT symmetry is broken in a optical system and CPT symmetry must always be respected, then what C symmetry is broken in a optical system?

Sorry, is "Topological insulators".

Another interesting article from condensate matter axion electrodynamic http://arxiv.org/pdf/1503.00235 The axion field causes a "cross-polarization" The article presents the expressions for the scattering caused by spheres of "topological isolators"

The process are between two photons and one axion in quantum terminology. I prefer look this process by axion electrodynamic field equations point of view, where the scattering process is more friendly. For example, i have found this interesting article associating axion photon oscillation with...

The Primakoff process ( in this context) models the resulting interaction between photon and axion fields under a strong and "static/stationary" background electromagnetic field, producing a aproximate linear model of axion photon electrodynamic. Basicaly, the Primakoff process models a very...

Axions in theory are uncharged, spin 0, very light particles, and have a very small scattering cross section when interacting with photons. But there is a very interesting article about a strong enhanced scattering of neutral particles. "Resonant radiation pressure on neutral particles in a...

Why HE11 mode of corrugated waveguides would not be a natural source of axion field?