Nanoscale and Quantum Photonics Lab

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Projects

Quantum information processing and cavity QED with quantum dots in photonic crystals: Dirk, Andrei, Jesse, Arka
Photonic crystal nanolaser and nanolaser arrays: Bryan, Dirk
Active silicon nanophotonics: Maria, Jesse, Yiyang
Nanometallics: Yiyang
Photonic crystal cavity design: Dirk, Mitsuru
Visible photonic crystals: Kelley, Andrei

Photonic crystal quantum networks

Single photon source based on a InGaAs quantum dot inside a photonic crystal cavity. The cavity is coupled to a photonic crystal waveguide.

The Idea:

Use single photon sources based on single emitters inside photonic crystal (PC) cavities to build on-chip quantum networks.

Reasons

For quantum computing, the q-bits (quantum nodes) need to be connected into a network
Making a quantum network directly on a chip has the advantage of scalability
The basic components of a PC quantum network already exist
- Quantum dots for quantum gates
- PC cavities as nodes
- PC waveguides as connections between nodes

Challenges

Find reliable methods to independently tune the emission of quantum dots in a network
Good methods to do independent tuning of different photonic crystal cavities on the same chip need to be found
Discover new techniques for aligning PC cavities on top of the quantum dots
Optimize the single photon transfer efficiency between PC cavities and PC waveguides

last modified on Monday September 25, 2006