We have characterized the optical modes present in a two-dimensional photonic crystal single defect cavity fabricated in an InP/In0.53Ga0.47As/InP double heterostructure thin film on a glass slide. The cavity resonance was tuned to different frequencies in the 1.55 μm spectral region. Radiation losses and material absorption influence the measured value of cavity quality factor Q. We separated these two loss mechanisms by performing a curve fit of the loss rate 1/Q versus the wavelength-dependent absorption coefficient of In0.53Ga0.47As. By extrapolating this curve to zero absorption, the radiation loss rate 1/Qrad is obtained.
Štefan Schwarz, S. Dufferwiel, P. M. Walker, Freddie Withers, A. A. P. Trichet, M. Sich, Feng Li, E. A. Chekhovich, D. N. Borisenko, N. N. Kolesnikov, Konstantin ‘kostya’ Novoselov, M. S. Skolnick, Jason M. Smith, D. N. Krizhanovskii, A. I. Tartakovskii
Tae Joon Seok, Arash Jamshidi, Myung‐Ki Kim, Scott Dhuey, Amit Lakhani, Hyuck Choo, P. James Schuck, Stefano Cabrini, Adam Schwartzberg, Jeffrey Bokor, Eli Yablonovitch, Ming C. Wu
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