TY - JOUR
T1 - Fabrication and optical characterization of photonic crystal nanocavities with electrodes for gate-defined quantum dots
AU - Tajiri, T.
AU - Sakai, Y.
AU - Kuruma, K.
AU - Ji, S. M.
AU - Kiyama, H.
AU - Oiwa, A.
AU - Ritzmann, J.
AU - Ludwig, A.
AU - Wieck, A. D.
AU - Ota, Y.
AU - Arakawa, Y.
AU - Iwamoto, S.
N1 - Publisher Copyright:
© 2020 The Japan Society of Applied Physics.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Among various solid-state systems, gate-defined quantum dots (QD) with high scalability and controllability for single electron spin qubits are promising candidates to realize quantum spin-photon interface. The efficiency of the spin-photon interface is expected to be significantly enhanced by optical coupling of gate-defined QDs with photonic crystal (PhC) nanocavities. As the first step towards this optical coupling, we designed and experimentally demonstrated a PhC nanocavity with electrodes. The electrodes, which can form a single QD, were introduced on the top surfaces of two-dimensional PhC nanocavities with a position accuracy of a few tens of nanometers. Despite the electrodes, a resonant mode was confirmed for the PhC nanocavities through micro-photoluminescence spectroscopy. This work marks a crucial step towards optical coupling between gate-defined QDs and PhC nanocavities.
AB - Among various solid-state systems, gate-defined quantum dots (QD) with high scalability and controllability for single electron spin qubits are promising candidates to realize quantum spin-photon interface. The efficiency of the spin-photon interface is expected to be significantly enhanced by optical coupling of gate-defined QDs with photonic crystal (PhC) nanocavities. As the first step towards this optical coupling, we designed and experimentally demonstrated a PhC nanocavity with electrodes. The electrodes, which can form a single QD, were introduced on the top surfaces of two-dimensional PhC nanocavities with a position accuracy of a few tens of nanometers. Despite the electrodes, a resonant mode was confirmed for the PhC nanocavities through micro-photoluminescence spectroscopy. This work marks a crucial step towards optical coupling between gate-defined QDs and PhC nanocavities.
UR - http://www.scopus.com/inward/record.url?scp=85083300674&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083300674&partnerID=8YFLogxK
U2 - 10.7567/1347-4065/ab5b62
DO - 10.7567/1347-4065/ab5b62
M3 - Article
AN - SCOPUS:85083300674
SN - 0021-4922
VL - 59
JO - Japanese journal of applied physics
JF - Japanese journal of applied physics
IS - SG
M1 - SGGI05
ER -