TY - JOUR
T1 - Lorentz-boosted evanescent waves
AU - Bliokh, Konstantin Y.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/6/26
Y1 - 2018/6/26
N2 - Polarization, spin, and helicity are important properties of electromagnetic waves. It is commonly believed that helicity is invariant under the Lorentz transformations. This is indeed so for plane waves and their localized superpositions. However, this is not the case for evanescent waves, which are well-defined only in a half-space, and are characterized by complex wave vectors. Here we describe transformations of evanescent electromagnetic waves and their polarization/spin/helicity properties under the Lorentz boosts along the three spatial directions.
AB - Polarization, spin, and helicity are important properties of electromagnetic waves. It is commonly believed that helicity is invariant under the Lorentz transformations. This is indeed so for plane waves and their localized superpositions. However, this is not the case for evanescent waves, which are well-defined only in a half-space, and are characterized by complex wave vectors. Here we describe transformations of evanescent electromagnetic waves and their polarization/spin/helicity properties under the Lorentz boosts along the three spatial directions.
KW - Evanescent waves
KW - Lorentz transformations
KW - Optical angular momentum
KW - Optical helicity
UR - http://www.scopus.com/inward/record.url?scp=85045478126&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2018.04.023
DO - 10.1016/j.physleta.2018.04.023
M3 - Article
SN - 0375-9601
VL - 382
SP - 1695
EP - 1700
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 25
ER -