TY - JOUR
T1 - Extreme multiexciton emission from deterministically assembled single-emitter subwavelength plasmonic patch antennas
AU - Dhawan, Amit Raj
AU - Belacel, Cherif
AU - Esparza-Villa, Juan Uriel
AU - Nasilowski, Michel
AU - Wang, Zhiming
AU - Schwob, Catherine
AU - Hugonin, Jean Paul
AU - Coolen, Laurent
AU - Dubertret, Benoît
AU - Senellart, Pascale
AU - Maître, Agnès
N1 - Publisher Copyright:
© 2020, The Author(s).
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Coupling nano-emitters to plasmonic antennas is a key milestone for the development of nanoscale quantum light sources. One challenge, however, is the precise nanoscale positioning of the emitter in the structure. Here, we present a laser etching protocol that deterministically positions a single colloidal CdSe/CdS core/shell quantum dot emitter inside a subwavelength plasmonic patch antenna with three-dimensional nanoscale control. By exploiting the properties of metal–insulator–metal structures at the nanoscale, the fabricated single-emitter antenna exhibits a very high-Purcell factor (>72) and a brightness enhancement of a factor of 70. Due to the unprecedented quenching of Auger processes and the strong acceleration of the multiexciton emission, more than 4 photons per pulse can be emitted by a single quantum dot, thus increasing the device yield. Our technology can be applied to a wide range of photonic nanostructures and emitters, paving the way for scalable and reliable fabrication of ultra-compact light sources.
AB - Coupling nano-emitters to plasmonic antennas is a key milestone for the development of nanoscale quantum light sources. One challenge, however, is the precise nanoscale positioning of the emitter in the structure. Here, we present a laser etching protocol that deterministically positions a single colloidal CdSe/CdS core/shell quantum dot emitter inside a subwavelength plasmonic patch antenna with three-dimensional nanoscale control. By exploiting the properties of metal–insulator–metal structures at the nanoscale, the fabricated single-emitter antenna exhibits a very high-Purcell factor (>72) and a brightness enhancement of a factor of 70. Due to the unprecedented quenching of Auger processes and the strong acceleration of the multiexciton emission, more than 4 photons per pulse can be emitted by a single quantum dot, thus increasing the device yield. Our technology can be applied to a wide range of photonic nanostructures and emitters, paving the way for scalable and reliable fabrication of ultra-compact light sources.
U2 - 10.1038/s41377-020-0269-0
DO - 10.1038/s41377-020-0269-0
M3 - Article
AN - SCOPUS:85081172874
SN - 2095-5545
VL - 9
JO - Light: Science and Applications
JF - Light: Science and Applications
IS - 1
M1 - 33
ER -