TY - JOUR
T1 - Broadband Light Collection Efficiency Enhancement of Carbon Nanotube Excitons Coupled to Metallo-Dielectric Antenna Arrays
AU - Shayan, Kamran
AU - Rabut, Claire
AU - Kong, Xiaoqing
AU - Li, Xiangzhi
AU - Luo, Yue
AU - Mistry, Kevin S.
AU - Blackburn, Jeffrey L.
AU - Lee, Stephanie S.
AU - Strauf, Stefan
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2018/2/21
Y1 - 2018/2/21
N2 - The realization of on-chip quantum networks ideally requires lossless interfaces between photons and solid-state quantum emitters. We propose and demonstrate on-chip arrays of metallo-dielectric antennas (MDA) that are tailored toward efficient and broadband light collection from individual embedded carbon nanotube quantum emitters by trapping air gaps on chip that form cavity modes. Scalable implementation is realized by employing polymer layer dry-transfer techniques that avoid solvent incompatibility issues, as well as a planar design that avoids solid-immersion lenses. Cryogenic measurements demonstrate 7-fold enhanced exciton intensity when compared to emitters located on bare wafers, corresponding to a light collection efficiency (LCE) up to 92% in the best case (average LCE of 69%) into a narrow output cone of ±15° that enables a priori fiber-to-chip butt coupling. The demonstrated MDA arrays are directly compatible with other quantum systems, particularly 2D materials, toward enabling efficient on-chip quantum light sources or spin-photon interfaces requiring unity light collection, both at cryogenic or room temperature.
AB - The realization of on-chip quantum networks ideally requires lossless interfaces between photons and solid-state quantum emitters. We propose and demonstrate on-chip arrays of metallo-dielectric antennas (MDA) that are tailored toward efficient and broadband light collection from individual embedded carbon nanotube quantum emitters by trapping air gaps on chip that form cavity modes. Scalable implementation is realized by employing polymer layer dry-transfer techniques that avoid solvent incompatibility issues, as well as a planar design that avoids solid-immersion lenses. Cryogenic measurements demonstrate 7-fold enhanced exciton intensity when compared to emitters located on bare wafers, corresponding to a light collection efficiency (LCE) up to 92% in the best case (average LCE of 69%) into a narrow output cone of ±15° that enables a priori fiber-to-chip butt coupling. The demonstrated MDA arrays are directly compatible with other quantum systems, particularly 2D materials, toward enabling efficient on-chip quantum light sources or spin-photon interfaces requiring unity light collection, both at cryogenic or room temperature.
KW - carbon nanotubes
KW - excitons
KW - light collection efficiency
KW - metallo-dielectric antenna
KW - microcavity
KW - quantum emitter
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U2 - 10.1021/acsphotonics.7b00786
DO - 10.1021/acsphotonics.7b00786
M3 - Article
AN - SCOPUS:85042413732
VL - 5
SP - 289
EP - 294
JO - ACS Photonics
JF - ACS Photonics
IS - 2
ER -