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Hardware Accelerators for Machine Learning Systems

Conventional computing platforms are inefficient at handling complex machine learning algorithms, which has limited the use of artificial intelligence (AI) in business applications. With support from Harvard's Physical Sciences & Engineering…


  • David Brooks
  • Gu-Yeon Wei

Achromatic multi-zone metalens for AR/VR systems

Augmented reality (AR) and virtual reality (VR) hardware is composed of optical elements, displays, sensors and electronics. Optics in particular are highly important to the quality and experience of AR/VR, and classical optical devices impose…


  • Federico Capasso

Compact, tunable lens using compliant transparent electrodes

Conventional lenses have specific focal lengths and aberration characteristics due to their shape and comprising material. For adaptable systems, such as a camera that can focus at objects at different distances, often mechanical systems area used…


  • David Clarke
  • Samuel Shian
  • Roger Diebold

Measuring resistance at the scale of a single transistor

According to Moore’s law, electronic devices such as transistors have been shrinking in size to yield higher performance. Currently, feature sizes are on the order of 10 nm, and important parameters for the device operation, such as temperature and…


  • Mikhail Lukin
  • Hongkun Park

Functionalized and coated carbon nanotubes via atomic layer deposition

Carbon nanotubes have remarkable electrical and optical properties that have not been extensively commercialized in part due to difficulties making robust and high quality devices containing them. One current difficulty is the lack of an effective…


  • Roy Gordon
  • Damon Farmer
  • Charles Marcus
  • James Williams

CMOS integrated NMR spectrometer

Nuclear Magnetic Resonance (NMR) spectrometers have been in use for many years and are used to provide imaging or analysis of a sample being tested. In general, an NMR spectrometer is comprised of three main components: a pulse sequencer, an NMR…


  • Donhee Ham
  • Dongwan Ha
  • Jeffrey Paulsen
  • Song Yi-Qiao

Long-range quantum communication based on solid-state photon emitters

Quantum communication holds promise for transmitting secure messages via quantum cryptography, as well as for distributing quantum information. However, attenuation in optical fibers fundamentally limits the range of direct quantum communication…


  • Mikhail Lukin
  • Jacob Taylor
  • Anders Sorensen
  • Lilian Childress

Implanted silicon-vacancy centers with coherent optical properties as a quantum computing platform

Atom-like optical emitters in the solid state are a promising platform for future applications in quantum computing, secure communications, and magnetometry. This invention describes a method of using ion implantation to produce silicon-vacancy…


  • Mikhail Lukin
  • Ruffin Evans
  • Alp Sipahigil

Ice lithography for high resolution electron beam processing of fragile substrates

Electron beam lithography is a staple of microfabrication processes. The dominant practice, developed for silicon etching, first uses an organic photoresist to coat the substrate and then writes a desired pattern. However, this process can damage or…


  • Daniel Branton
  • Jene Golovchenko
  • Anpan Han

2D Dirac-Cone Metamaterials

Metamaterials are synthetic composite materials that exhibit properties not found in natural materials. This invention describes the fabrication of Dirac-cone metamaterials, with potential applications in a number of promising areas, including…


  • Eric Mazur
  • Marko Loncar
  • Yang Li
  • Shota Kita
  • Philip Munoz
  • Daryl Vulis

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