Solution-Processed Cavity and Slow-Light Quantum Electrodynamics in Near-Infrared Silicon Photonic Crystals
Lam, Nghi Q.
We demonstrate enhanced emission of solution-processed sparse lead sulfide quantum dots(QDs) coupled to confined as well as propagating modes in siliconphotonic crystals at near-infrared communications wavelengths. In the cavity case, by using cold-cavity characterization using on-board waveguides or cross-polarization techniques, we show that the coupled QD lineshape is identical to the cold-cavity spectra. For the photonic crystal waveguides (PhCWGs), we use transmission spectra for the PhCWG as well as three-dimensional finite difference time domain techniques to validate enhancements due to the propagating mode. The observation of room-temperature quantum electrodynamics using postfabrication QD integration techniques is promising for further studies.
R. Bose et al., "Solution-Processed Cavity and Slow-Light Quantum Electrodynamics in Near-Infrared Silicon Photonic Crystals," Applied Physics Letters, American Institute of Physics (AIP), Jan 2009.
The definitive version is available at http://dx.doi.org/10.1063/1.3238555
Mechanical and Aerospace Engineering
Keywords and Phrases
Quantum Dots; Photonic Crystal Waveguides; Photonic Crystals; Silicon; II-VI Semiconductors; Cavity Quatum Electrodynamics; Finite Difference Time Domain Calculations; Linewidths; Metal Insulator Semiconductor Structures; Photoluminescence
Article - Journal
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