Optical microcavities formed by semiconductor microtubes using a bottlelike geometry.
We report on the realization of optical microtube resonators with a bottlelike geometry. The measured eigenenergies and the measured axial field distributions of the modes can be described by a straight and intuitive model using an adiabatic separation of the circulating and the axial propagation. The dispersion of the axial mode energies follows a photonic quasi-Schrödinger equation including a quasipotential which can be determined for the actual geometry of the microtube in a precise and simple way. We show that tailoring the geometry of the microtube bottle resonators enables the realization of a wide variety of mode distributions and dispersion relations.
Institut für Angewandte Physik und Zentrum für Mikrostrukturforschung, Universität Hamburg, Jungiusstrasse 11, Hamburg, Germany.
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Ch
Strelow
H
H
Rehberg
C M
CM
Schultz
H
H
Welsch
Ch
Ch
Heyn
D
D
Heitmann
T
T
Kipp