Overlapping double potential wells in a single optical microtube cavity with vernier-scale-like tuning effect

Journal Article · Mon Apr 25 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4948359· OSTI ID:22591625

Madani, A.; Schmidt, O. G. ^[1]; Bolaños Quiñones, V. A.; Jorgensen, M. R. ^[1]; Miao, S. D. ^[2]

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1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstr. 20, 01069 Dresden (Germany)
2. Anhui Key Lab of Controllable Chemical Reaction and Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road. 193, Hefei, Anhui 230009 (China)

Spatially and temporally overlapping double potential wells are realized in a hybrid optical microtube cavity due to the coexistence of an aggregate of luminescent quantum dots embedded in the tube wall and the cone-shaped tube's geometry. The double potential wells produce two independent sets of optical modes with different sets of mode numbers, indicating phase velocity separation for the modes overlapping at the same frequency. The overlapping mode position can be tuned by modifying the tube cavity, where these mode sets shift with different magnitudes, allowing for a vernier-scale-like tuning effect.

• OSTI ID: 22591625
• Journal Information: Applied Physics Letters, Vol. 108, Issue 17; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GEOMETRY
LUMINESCENCE
OPTICAL EQUIPMENT
OPTICAL MODES
PHASE VELOCITY
POTENTIALS
QUANTUM DOTS
TUNING
WALLS