Nanophotonics
Nanoscale optical devices have great potential to play a key role in future information processing technologies. As the bandwidth of the Internet continues to exponentially increase with time, smaller and faster optical components will be necessary to accommodate this speed. We are investigating optical components and devices that may be used as precise optical filters, waveguides, and sources. We concentrate on the fabrication of photonic crystal nanocavities, microdisk resonators, and photonic crystal waveguides on a range of material systems that include diamond, GaAs, GaN, GaMnAs, InP, and SiN.
The study of the interaction between light and matter, also known as quantum electrodynamics (or QED) is crucial to the design and implementation of various tantalizing future information processing technology possibilities. Both photonic crystal nanocavities and microdisk resonators offer opportunities for the study of photon-cavity interaction. Microdisk resonators provide a simple cavity design which allows for relative ease of fabrication. While photonic crystal nanocavities, due to their smaller modal volume, offer unique opportunities for the physical implementation of QED in the solid-state. Photonic crystal nanocavities fabricated on GaAs substrates using InAs quantum dots as optical emitters have been realized in our group.
The study of such nanophotonic devices and systems is not complete without quality device fabrication and subsequent optical characterization. Our group integrates UCSB's extensive materials growth capabilities and facilities along with substantial group fabrication expertise in order to best achieve these devices.
Researchers
Sample Publications
| Publication |
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| "Observation of whispering gallery modes in nanocrystalline diamond microdisks", C. F. Wang, Y-S. Choi, J. C. Lee, E. L. Hu, J. Yang, and J. E. Butler, Appl. Phys. Lett. 90, p. 081110-3 (2007) |
| "Quantum nature of a strongly coupled single quantum dot-cavity system", Nature 445 (7130), p. 896-9 (2007) |
| "Room-temperature continuous-wave lasing in GaN//InGaN microdisks", Adele C. Tamboli, Elaine D. Haberer, Rajat Sharma, Kwan H. Lee, Shuji Nakamura and Evelyn L. Hu, Nature Photonics 1(1), p. 61-4 (2007) |
| "Self-tuned quantum dot gain in photonic crystal lasers", S. Strauf, K. Hennessy, M.T. Rakher, Y.-S. Choi, A. Badolato, L.C. Andreani, E.L. Hu, P.M. Petroff and D. Bouwmeester, Physical Review Letters 96 (12), p.127404/1-4 (2006) |
| "Photonic-crystal GaN light-emitting diodes with tailored guided modes distribution", Aurélien David, Tetsuo Fujii, Rajat Sharma, Kelly McGroddy, Shuji Nakamura, Steven P. DenBaars, Evelyn L. Hu, Claude Weisbuch, and Henri Benisty, Appl Phys. Lett. 88,p. 061124 (2006) |
| "Deterministic Coupling of Single Quantum Dots to Single Nanocavity Modes", Antonio Badolato, Kevin Hennessy, Mete Atatüre, Jan Dreiser, Evelyn Hu, Pierre M. Petroff, Atac Imamoglu, Science, 308, p. 1158-61 (2005) |
| "External Coupling of Molecular Dye Emission to High-Q Microdisk Resonators", David R. Rink, Michael H. Bartl, Lidong Zhang, Galen D. Stucky, Evelyn L. Hu, 2005 Conference on Lasers and Electro-Optics, May 23-27, 2005, Baltimore, MD |
| "Square-lattice photonic crystal microcavities for coupling to single InAs quantum dots", K. Hennessy, C. Reese, A. Badolato, C.F. Wang, A. Imamoglu, P.M. Petroff, E.Hu, G. Jin, S. Shi, D.W. Prather, Appl. Phys. Lett.83 (18), pp. 3650 - 2 (2003) |
| "Lasing from InGaAs Quantum Dots in Electron Injection Microdisk", Lidong Zhang and E.L. Hu, Appl. Phys. Lett. 82(3), pp. 319-321 (2003) |
| "A quantum dot single-photon turnstile device", P. Michler, A. Kiraz, C. Becher, W.V. Schoenfeld, P.M. Petroff, L.D. Zhang, E.L. Hu, A. Imamoglu, Science 290, pp. 2282-2285 (2000) |