Full text loading...
SEM images of the fabricated device. (a) Top view of the PhC structure with two cavities. (b) Magnified view of microcavity C1.
Experimental results of laser-pumped thermal tuning of PhC microcavities with laser pump light focused near microcavity C1. (a) Transmission spectra for pump powers between 0 and . Solid black lines show experimental data and red dashed lines show theoretical fits. (b) Resonance wavelengths (dip positions) as a function of pump power.
Resonance redshift of the two microcavities for different positions of the pumping laser spot. The laser spot was scanned along the waveguide near cavity 2 (along the long dashed arrow in Fig. 1), whose redshift exhibits strong dependence on the spot position. The zero of the horizontal axis corresponds to the position of cavity 2. Cavity 1 has negligible redshift due to its large distance away from the laser spot. (Inset) Redshift of cavity 2 with respect to the logarithm of the distance to laser spot.
Article metrics loading...