Roger Hawksworth

5 Questions 8 Answers 0 Followers

Questions related from Roger Hawksworth

What Is the Definition Of The First Order Electric Field Correlation Function For A Vector Valued E?

I have not found an explicit definition, as far as I know, of the first order correlation function for a vector valued electric field. What I have found is a definition that works for a single...

07 July 2017 7,925 1 View

What is the best way to handle the ‘grad div E’ term?

I have tried to derive, in a particular form, an equation for the electric field of light propagating in a dielectric. Unfortunately, for my intended purpose, for the case of electromagnetic wave...

01 January 2017 1,931 8 View

Does anyone have the algebra for transforming grad?

I want to transform grad from Cartesian coordinates to spherical polar. Could anyone provide the details for this? I would also like to be able to transform grad to any coordinate system, even...

06 June 2016 8,172 5 View

Does anyone know of a proof, that the divergence of a vector field exists?

Does anyone know how to prove, that the defining limit, is actually well defined? Please see attachment. Roger

12 December 2015 5,990 2 View

What is the most direct way to measure the helicity of a photon?

I have an interest in quantum optics and have been studying the electromagnetic field, photons and related material. I wondered what the most direct method of measuring the helicity of a photon...

01 January 1970 2,661 2 View