Portal de Periódicos da CAPES

Quantum Cascade Surface-Emitting Photonic Crystal Laser

2003; American Association for the Advancement of Science; Volume: 302; Issue: 5649 Linguagem: Inglês

10.1126/science.1090561

1095-9203

R. Colombelli, Kartik Srinivasan, Mariano Troccoli, Oskar Painter, Claire Gmachl, D. M. Tennant, A. M. Sergent, Deborah L. Sivco, Alfred Y. Cho, Federico Capasso,

Semiconductor Lasers and Optical Devices

We combine photonic and electronic band structure engineering to create a surface-emitting quantum cascade microcavity laser. A high-index contrast two-dimensional photonic crystal is used to form a micro-resonator that simultaneously provides feedback for laser action and diffracts light vertically from the surface of the semiconductor surface. A top metallic contact allows electrical current injection and provides vertical optical confinement through a bound surface plasmon wave. The miniaturization and tailorable emission properties of this design are potentially important for sensing applications, while electrical pumping can allow new studies of photonic crystal and surface plasmon structures in nonlinear and near-field optics.