TY - JOUR
T1 - Integration of atomically thin layers of transition metal dichalcogenides into high-Q, monolithic Bragg-cavities
T2 - An experimental platform for the enhancement of the optical interaction in 2D-materials
AU - Knopf, Heiko
AU - Lundt, Nils
AU - Bucher, Tobias
AU - Höfling, Sven
AU - Tongay, Sefaattin
AU - Taniguchi, Takashi
AU - Watanabe, Kenji
AU - Staude, Isabelle
AU - Schulz, Ulrike
AU - Schneider, Christian
AU - Eilenberger, Falk
N1 - Funding Information:
This work has been supported by the Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. We gratefully acknowledge the financial support by the German Federal Ministry of Education and Research via the funding “2D Nanomaterialien für die Nanoskopie der Zukunft” FKZ: 13XP5053A. Financial support from the Thuringian State Government within its Pro-Excellence initiative (ACP2020) is gratefully acknowledged. The Würzburg group gratefully acknowledges financial support by the state of Bavaria. C.S. acknowledges support by the European Research Council within the project UnLiMIt-2D.
Publisher Copyright:
© 2019 Optical Society of America.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - We demonstrate a new approach to integrate single layer MoSe 2 and WSe 2 flakes into monolithic all-dielectric planar high-quality micro-cavities. These distributed-Braggreflector (DBR) cavities may, e.g., be tuned to match the exciton resonance of the 2Dmaterials. They are highly robust and compatible with cryogenic and room-temperature operation. The integration is achieved by a customized ion-assisted physical vapor deposition technique, which does not degrade the optical properties of the 2D-materials. The monolithic 2D-resonator is shown to have a high Q-factor in excess of 4500. We use photoluminescence (PL) experiments to demonstrate that the coating procedure with a SiO 2 coating on a prepared surface does not significantly alter the electrooptical properties of the 2D-materials. Moreover, we observe a resonance induced modification of the PL-spectrum for the DBR embedded flake. Our system thus represents a versatile platform to resonantly enhance and tailor light-matter-interaction in 2D-materials. The gentle processing conditions would also allow the integration of other sensitive materials into these highly resonant structures.
AB - We demonstrate a new approach to integrate single layer MoSe 2 and WSe 2 flakes into monolithic all-dielectric planar high-quality micro-cavities. These distributed-Braggreflector (DBR) cavities may, e.g., be tuned to match the exciton resonance of the 2Dmaterials. They are highly robust and compatible with cryogenic and room-temperature operation. The integration is achieved by a customized ion-assisted physical vapor deposition technique, which does not degrade the optical properties of the 2D-materials. The monolithic 2D-resonator is shown to have a high Q-factor in excess of 4500. We use photoluminescence (PL) experiments to demonstrate that the coating procedure with a SiO 2 coating on a prepared surface does not significantly alter the electrooptical properties of the 2D-materials. Moreover, we observe a resonance induced modification of the PL-spectrum for the DBR embedded flake. Our system thus represents a versatile platform to resonantly enhance and tailor light-matter-interaction in 2D-materials. The gentle processing conditions would also allow the integration of other sensitive materials into these highly resonant structures.
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U2 - 10.1364/OME.9.000598
DO - 10.1364/OME.9.000598
M3 - Article
AN - SCOPUS:85060377152
SN - 2159-3930
VL - 9
SP - 598
EP - 610
JO - Optical Materials Express
JF - Optical Materials Express
IS - 2
ER -