Imperial College London
Professor Leader

Professor Leader

Faculty of Natural Sciences, Department of Physics

Senior Research Investigator
 
 
 
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Contact

 

+44 (0)20 7594 7792e.leader Website

 
 
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Assistant

 

Ms Paula Brown +44 (0)20 7594 7823

 
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Location

 

504Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Leader:2018:10.1016/j.physletb.2018.02.029,
author = {Leader, E},
doi = {10.1016/j.physletb.2018.02.029},
journal = {Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics},
pages = {385--387},
title = {A proposed measurement of optical orbital and spin angular momentum and its implications for photon angular momentum},
url = {http://dx.doi.org/10.1016/j.physletb.2018.02.029},
volume = {779},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The expression for the total angular momentum carried by a laser optical vortex beam, splits, in the paraxial approximation, into two terms which seem to represent orbital and spin angular momentum respectively. There are, however, two very different competing versions of the formula for the spin angular momentum, one based on the use of the Poynting vector, as in classical electrodynamics, the other related to the canonical expression for the angular momentum which occurs in Quantum Electrodynamics. I analyze the possibility that a sufficiently sensitive optical measurement could decide which of these corresponds to the actual physical angular momentum carried by the beam.
AU  - Leader,E
DO  - 10.1016/j.physletb.2018.02.029
EP  - 387
PY  - 2018///
SN  - 0370-2693
SP  - 385
TI  - A proposed measurement of optical orbital and spin angular momentum and its implications for photon angular momentum
T2  - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
UR  - http://dx.doi.org/10.1016/j.physletb.2018.02.029
UR  - http://hdl.handle.net/10044/1/58741
VL  - 779
ER  -
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