The recently emergent concept of coherently enhanced wireless power transfer (WPT) facilitates efficient and stable energy conveyance. Here, we demonstrate the feasibility of the coherent method to enhance the WPT efficiency for an innovative scenario of a WPT smart table. The smart table consists of a metasurface supporting surface waves excited by a transmitting antenna. We demonstrate that WPT efficiency of the system can be drastically increased by coherent excitation. The results of this work pave a way towards efficacious and more stable WPT technologies.

1.
A.
Kurs
,
A.
Karalis
,
R.
Moffatt
,
J. D.
Joannopoulos
,
P.
Fisher
, and
M.
Soljačić
, “
Wireless power transfer via strongly coupled magnetic resonances
,”
science
317
,
83
86
(
2007
).
2.
A.
Krasnok
,
D. G.
Baranov
,
A.
Generalov
,
S.
Li
, and
A.
Alù
, “
Coherently enhanced wireless power transfer
,”
Physical review letters
120
,
143901
(
2018
).
3.
D. G.
Baranov
,
A.
Krasnok
,
T.
Shegai
,
A.
Alù
, and
Y.
Chong
, “
Coherent perfect absorbers: linear control of light with light
,”
Nature Reviews Materials
2
,
1
14
(
2017
).
4.
A.
Krasnok
,
D.
Baranov
,
H.
Li
,
M.-A.
Miri
,
F.
Monticone
, and
A.
Alú
, “
Anomalies in light scattering
,”
Advances in Optics and Photonics
11
,
892
951
(
2019
).
5.
M.
Song
,
K.
Baryshnikova
,
A.
Markvart
,
P.
Belov
,
E.
Nenasheva
,
C.
Simovski
, and
P.
Kapitanova
, “
Smart table based on a metasurface for wireless power transfer
,”
Physical Review Applied
11
,
054046
(
2019
).
6.
A. L. H.
HA
,
Waves and Fields in Optoelectronics
(
Prentice-Hall
,
Inc., Englewood Cliffs, NJ
,
1984
).
This content is only available via PDF.
You do not currently have access to this content.