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Authors: T. Van Vaerenbergh, J. Dambre, P. Bienstman, J.A. Levenson, A. Yacomotti
Title: Lumped circuit heat model of photonic crystal membrane nanocavities
Format: International Journal
Publication date: 9/2013
Journal/Conference/Book: IEEE Journal of Quantum Electronics
Volume(Issue): p.967 - 969
DOI: 10.1109/jqe.2013.2283576
Citations: Look up on Google Scholar
Download: Download this Publication (383KB) (383KB)


An InP L3 photonic crystal cavity on a suspended membrane has a characteristic thermal time constant of ∼ 1 μs, which is 5.4× slower than the theoretical thermal cavity relax-ation time. To explain this ismatch, we use a lumped circuit model containing not only the cavity temperature, but also an average temperature of the membrane. Comparison of this model to a 1D COMSOL simulation, results in a thermal time constant of the membrane that is 7.9× slower than the thermal cavity lifetime, and slows down the transient response. The membrane behaves similar to other membrane cavity types.

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