Quantum Optics and Integrated Photonics

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Quantum Optics - Precision Measurement - Nanophotonics

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Quantum Silicon Photonics for unconditionally secure communication and other quantum technologies

Quantum-Enhanced Sensing for real-time imaging of neural activity in the brain; solid-state atomic clocks

Classical and quantum information processing devices and systems

Graphene Opto-Electronics

Modern silicon photonics for high-performance quantum information processing, such as high-speed quantum cryptography. Ultrasensitive measurements/quantum metrology to detect weak fields & forces in biology, chemistry, and physics; atomic clock analogs using electron spin states in diamond. Guiding light at the wavelength-scale for new optoelectronic devices with ultra-low power consumption for next-generation computing and communication systems. Graphene - silicon hybrid opto-electronic devices. Silicon photonic integrated circuits are combined with graphene for high-speed, low-power optical modulators, photodetectors, and nonlinear optics.

Research Overview:

The field of quantum optics has led to the development of radically new ways to compute, communicate, and measure with quantum states. The Quantum Photonics Group is developing quantum technologies in scalable semiconductor systems, building on the dramatic achievements of semiconductor technology in past decades. Present goals include quantum simulators using scalable silicon photonic circuits and high-performance quantum memories based on electron spins in diamond color centers, high-speed quantum key distribution, and spin-off applications in opto-electronic devices for classical information processing. We are also pursuing new applications in precision measurements, including the development of electron spin-based timing devices and biosensors.

The Quantum Photonics Group is led by Dirk Englund, Jamieson Career Development Professor in Electrical Engineering and Computer Science at the Massachusetts Institute of Technology.