We measured the photon count rate (PCR) and dark count rate (DCR) of a superconducting nanowire single photon detector (SNSPD) exposed to either a DC magnetic field (up to 60mT) or to a low-amplitude oscillating field (0.120.48mT, up to 50kHz). In both cases, the results show an increase in the PCR and the DCR as the DC field or the frequency of the AC field increase. However, the ratio DCR/(PCR + DCR) increases significantly with an increasing DC field, whereas this ratio is approximately constant as the frequency of the AC field increases up to frequencies in the kHz regime. The results suggest a more favorable effect of AC fields on the operation of the SNSPD.

1.
M. K.
Bhaskar
,
R.
Riedinger
,
B.
Machielse
,
D. S.
Levonian
,
C. T.
Nguyen
,
E. N.
Knall
,
H.
Park
,
D.
Englund
,
M.
Lončar
,
D. D.
Sukachev
, and
M. D.
Lukin
,
Nature
580
,
60
(
2020
).
2.
J.
Zhu
,
Y.
Chen
,
L.
Zhang
,
X.
Jia
,
Z.
Feng
,
G.
Wu
,
X.
Yan
,
J.
Zhai
,
Y.
Wu
,
Q.
Chen
,
X.
Zhou
,
Z.
Wang
,
C.
Zhang
,
L.
Kang
,
J.
Chen
, and
P.
Wu
,
Sci. Rep.
7
,
15113
(
2017
).
3.
R. H.
Hadfield
,
Nat. Photonics
14
,
201
(
2020
).
4.
V. B.
Verma
,
B.
Korzh
,
F.
Bussières
,
R. D.
Horansky
,
S. D.
Dyer
,
A. E.
Lita
,
I.
Vayshenker
,
F.
Marsili
,
M. D.
Shaw
,
H.
Zbinden
,
R. P.
Mirin
, and
S. W.
Nam
,
Opt. Express
23
,
33792
(
2015
).
5.
A.
Engel
,
A. D.
Semenov
,
H.-W.
Hübers
,
K.
Il'in
, and
M.
Siegel
,
Physica C
444
,
12
(
2006
).
6.
G. N.
Gol'Tsman
,
O.
Okunev
,
G.
Chulkova
,
A.
Lipatov
,
A.
Semenov
,
K.
Smirnov
,
B.
Voronov
,
A.
Dzardanov
,
C.
Williams
, and
R.
Sobolewski
,
Appl. Phys. Lett.
79
,
705
(
2001
).
7.
A.
Engel
,
J. J.
Renema
,
K.
Il'in
, and
A.
Semenov
,
Supercond. Sci. Technol.
28
,
114003
(
2015
).
8.
L. N.
Bulaevskii
,
M. J.
Graf
, and
V. G.
Kogan
,
Phys. Rev. B
85
,
014505
(
2012
).
9.
D. Y.
Vodolazov
,
Y. P.
Korneeva
,
A. V.
Semenov
,
A. A.
Korneev
, and
G. N.
Goltsman
,
Phys. Rev. B
92
,
104503
(
2015
).
10.
R.
Lusche
,
A.
Semenov
,
Y.
Korneeva
,
A.
Trifonov
,
A.
Korneev
,
G.
Gol'tsman
, and
H.-W.
Hübers
,
Phys. Rev. B
89
,
104513
(
2014
).
11.
A.
Engel
,
A.
Schilling
,
K.
Il'in
, and
M.
Siegel
,
Phys. Rev. B
86
,
140506
(
2012
).
12.
E. H.
Brandt
,
Phys. Rev. B
49
,
9024
(
1994
).
13.
G. P.
Mikitik
and
E. H.
Brandt
,
Phys. Rev. B
64
,
092502
(
2001
).
14.
J. A.
Stern
and
W. H.
Farr
,
IEEE Trans. Appl. Supercond.
17
,
306
(
2007
).
15.
16.
D.
Henrich
,
S.
Dörner
,
M.
Hofherr
,
K.
Il'in
,
A.
Semenov
,
E.
Heintze
,
M.
Scheffler
,
M.
Dressel
, and
M.
Siegel
,
J. Appl. Phys.
112
,
074511
(
2012
).
17.
J. R.
Clem
,
Y.
Mawatari
,
G. R.
Berdiyorov
, and
F. M.
Peeters
,
Phys. Rev. B
85
,
144511
(
2012
).
18.
G. M.
Maksimova
,
Phys. Solid State
40
,
1607
(
1998
).
19.
K.
Ilin
,
D.
Henrich
,
Y.
Luck
,
Y.
Liang
,
M.
Siegel
, and
D. Y.
Vodolazov
,
Phys. Rev. B
89
,
184511
(
2014
).
20.
G. M.
Maksimova
,
N. V.
Zhelezina
, and
I. L.
Maksimov
,
Europhys. Lett.
53
,
639
(
2001
).
21.
A.
Semenov
,
I.
Charaev
,
R.
Lusche
,
K.
Ilin
,
M.
Siegel
,
H.-W.
Hübers
,
N.
Bralović
,
K.
Dopf
, and
D. Y.
Vodolazov
,
Phys. Rev. B
92
,
174518
(
2015
).
22.
M. W.
Coffey
and
J. R.
Clem
,
Phys. Rev. Lett.
67
,
386
(
1991
).
23.
Z.
Jing
,
H.
Yong
, and
Y.-H.
Zhou
,
Supercond. Sci. Technol.
28
,
075012
(
2015
).
24.
E.
Baruch-El
,
M.
Baziljevich
,
T. H.
Johansen
,
X. Y.
Zhou
,
X. Q.
Jia
,
B. B.
Jin
,
A.
Shaulov
, and
Y.
Yeshurun
,
Supercond. Sci. Technol.
31
,
105008
(
2018
).
25.
E. H.
Brandt
,
Rep. Prog. Phys.
58
,
1465
(
1995
).
26.
M. W.
Coffey
and
J. R.
Clem
,
Phys. Rev. B
45
,
9872
(
1992
).
27.
A.
Gurevich
and
G.
Ciovati
,
Phys. Rev. B
87
,
054502
(
2013
).
28.
Q.-Y.
Zhao
,
D.
Zhu
,
N.
Calandri
,
A. E.
Dane
,
A. N.
McCaughan
,
F.
Bellei
,
H.-Z.
Wang
,
D. F.
Santavicca
, and
K. K.
Berggren
,
Nat. Photonics
11
,
247
(
2017
).
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