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visits member for 2 years, 11 months
seen Sep 7 '13 at 8:46

Jun
5
revised Light scattering vs roughness
Added link to Disney's
Jun
5
asked Light scattering vs roughness
Apr
26
comment Software for geometrical optics
@BandGap: Your last comment is actually wrong. Geometrical optics is the same as ray optics (en.wikipedia.org/wiki/Geometrical_optics). It is called so because simple geometry formulae are used to calculate the path of each ray through an optical system. Diffraction effects indeed cannot be treated this way. A wave optics method (there are many of them) would not use the paradigm of a ray at all.
Nov
20
awarded  Editor
Nov
20
revised Are circular polarizations a basis for any light polarization?
Corrected LaTeX code for subscripts
Nov
20
answered Free Optics Simulation Programs
Nov
19
suggested suggested edit on Are circular polarizations a basis for any light polarization?
Nov
19
answered Are holograms like in this video possible?
Jun
18
answered How to bend light?
Jun
18
awarded  Commentator
Jun
18
comment How to bend light?
I wouldn't say that light is anyhow (effectively or not) bent in the graded-index fibres. It's as misleading as to draw light ray reflection in a step-index fibre. In a straight graded-index single-mode fibre, light propagates along a straight line because it forms a standing wave in the transverse direction, so there is no propagation.
Jun
16
awarded  Yearling
May
9
comment Poisson effect formula for large deformations
Plain and beautiful. Thanks!
May
9
accepted Poisson effect formula for large deformations
May
9
asked Poisson effect formula for large deformations
Apr
24
comment Light refraction and causality
No, reflection and refraction are independent. You can have all light refracted with 0 reflection---e.g. use anti-reflection coating.
Apr
22
comment Is it possible to witness a circular rainbow?
I've actually seen it without leaving the planet. On many lakes there are fountains. If you swim to it, you'll get in the middle of the cloud and can nicely observe the full rainbow. Did it in Zurich, the fountain there suits the purpose well.
Apr
22
answered Light refraction and causality
Apr
22
comment Light refraction and causality
Be careful with this claim: the normal component of the electric field actually experience a discontinuity at the boundary.
Feb
20
answered Accuracy of various optical instruments