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Unlocking High n+ Carrier Concentrations in Germanium for Advanced Devices
Germanium (Ge) holds great promise for the next generation of silicon CMOS-compatible devices due to its exceptional properties, including high electron and hole mobility and the ability to be grown directly on silicon substrates. However, a…
Investigators
- Eric Mazur
- Michael Aziz
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…
Investigators
- 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…
Investigators
- 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…
Investigators
- 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…
Investigators
- 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…
Investigators
- 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…
Investigators
- 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…
Investigators
- 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…
Investigators
- 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…
Investigators
- Daniel Branton
- Jene Golovchenko
- Anpan Han