Research Group


Spintronics Lab

Our group works on a new technology called Spintronics which is short for “spin electronics”. This technology relys on the spin of the electrons that flow in the circuit in contrast to the traditional electronics that depends only on their charge. In our group we explore new ways to manipulate electronic spins in atomically engineered devices to overcome the limits of conventional electronics for sensing, processing, and memory applications. 

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Quantum Mechanical Circuits

Quantum Mechanical Circuits

Exploring the fundamental and technological limits of quantum mechanics

Can we place an everyday object such as a congo drum in a quantum superposition? If we can’t - then why? Is that reason fundamental in that it places bounds on the correctness of quantum mechanics? If we can, then what is it useful for? Can we use it to do better metrology, improve information storage and to build hybrid quantum systems?
We study quantum MEMS: micro-electro-mechancial circuits. These hybrid quantum systems couple microwave circuits with micro-mechanical elements (aka "drums"). They serve as a platform to study fundamental quantum mechanics of fairly large objects (as big as the diameter of a human hair) and at the same time can be used as a springboard for quantum technology that involvs microwave: quantum communication, quantum illumination and quantum processing.
We are also not afraid of theory and think deeply about quantum process and state tomography, entanglement bounds and quantum information processing with continuous variables.

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The Optoelectronic Computing Laboratory

The Optoelectronic Computing Laboratory (OECL) of Prof Agranat is creating and developing singular devices and circuits for implementing futuristic complex schemes of sensing, data processing, and communication. The devices and circuits created at the OECL implement functions that cannot be implemented by the current state of the art, and hitherto, a roadmap for their implementation has not been anticipated.  The Research activity in the lab is spanned from the fundamental principles of condensed matter physics, and nonlinear optics, through the invention and construction of optoelectronic devices and circuits with unique functionalities, culminating in the conception computer system architectures that exploit these functionalities.

Nanophotonic Devices Lab

Nanophotonics is the science of light-matter interactions at the nanoscale. In our group we focus on nanophotonic devices, utilizing variety of materials including  solids (metals, semiconductors, dielectrics), liquids and atomic vapors. A typical research is initiated by defining novel concepts and ideas for state of the art devices, followed by the design and the nanofabrication of such devices, and all the way to their experimental characterization in the lab. Using these devices we explore fundamental phenomena in light-matter interactions. Such devices are also used for the demonstration of myriad applications in chip scale optical communication, memory, imaging, beam shaping, energy harvesting, biochemical sensing, and metrology.

The Quantum Nano Engineering Laboratory

We develop room temperature operating quantum devices. Our study exploits our developed "nano-toolbox" that includes nano dots and organic molecules that link the dots to the device.
This methodology is aimed at producing a generic technology for constructing devices in which many nano-systems are interconnected, operate in unison, and are coupled without inhibiting their quantum nature. For example, using chiral molecules the electron spin is protected enabling long range transport. The suggested approach mimic quantum biology studies done in the group, of real biological systems.
The group have fully equipped and functioning lab combining transport, transport noise and optical measurements.

Advanced Imaging Lab

The research in our group is focused on the development of advanced imaging and sensing techniques in complex media. Our goal is to develop novel approaches that would allow non-invasive imaging deep inside the human body, imaging and sensing through fog, and through miniature fibers. Our breakthroughs are enabled by the unique digital combination of light, ultrasound, and advanced computational techniques for image reconstruction from vast amount of unique datasets.

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Photonic Devices Lab

We investigate ways of increasing capacity and improving efficiency of fiber-optic communication systems, in support of society’s growing information consumption. Our innovations at the photonic device level are based on guided-light, on-chip structures (photonic integrated circuits designed for dedicated tasks, just like electronic integrated circuits), on optical free-space sub-assemblies (using lenses, diffraction gratings, phase masks, etc.), and their combination. Such devices and sub-systems assist in managing communication traffic in complex optical networks, as those supporting the Internet traffic and at warehouse-scale datacenters (‘the cloud’). Our engineering toolbox includes: employing all optical degrees of freedom (time, frequency, phase, polarization, and space), two and three-dimensional nanoscale fabrication modalities, materials with requisite properties including electro-optic and nonlinear characteristics and their utilization, mechanical motion using MEMS technology.

Quantum Sensors Lab

What do we do? We study the physics and applications of tiny measurement machines who "ticks" are dictated by the quantum properties of atoms. The lab explores the foundation building blocks of quantum-sensors with a strong emphasis on time and frequency applications and disciplines. We will answer questions such as how do atoms behave when confined to small dimensions? How atoms interact with and through walls? How does comb-light strongly interact with atomic medium? As such we will develop and explore new types of atomic clocks, magnetometers and electric-field sensors using microcomb light, “smart” atomic vapor cells and Nano-scale technology.

The Soft Matter Laboratory

The research interests of the laboratory are centered on the area of soft condensed matter physics for investigation of the structure, dynamics, and macroscopic behavior of complex systems. (CS). CS is a very broad and general class of materials, which include associated liquids, polymers, biomolecules, colloids, porous materials and liquid crystals.
The dynamical processes occurring in Complex Systems involve different length and time scales. Fast as well as ultra-slow molecular rearrangements take place in the presence of the microscopic, mesoscopic and macroscopic organization of the systems. Commonly, the complete characterization of these relaxation behaviors requires the use of variety techniques in order to span the relevant ranges in frequency. In this view, the use of Dielectric Spectroscopy (DS) is very advantageous



Ultrafast laser lab

For many years, the low flux and the relatively low photon energies of attosecond light sources (high harmonics) limits the scope of applications to a small fraction of what would be feasible and of interest for advancing a wide range of fields in science and technology. We are following two routs towards improving the high harmonics intensity. The first is to use a power 20 terawatt laser in a loose focusing geometry to generate the harmonics. The second rout is to use Fano resonances to enhance the harmonic yield. On top of yield improvement, this mechanism contains an interesting many-body physics which we also studying. Other running projects are the generation of Tsunami like plasma waves through the process of autoresonance and the development of new type of femtosecond lasers in the infrared spectra range.

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Nanophotonics of Quantum structures

Our general research interest is of quantum physics on the nanoscale. We are actively exploring the physics of semiconductor nanostructure, and in particular are studying collective quantum phenomena in low dimensional nano-structures as well as nano-engineering of light matter interaction in nano-photonic and nano-plasmonic quantum devices.
Our interests range from the fundamental understanding of new physical systems and effects, to new concepts of nano-photonic and quantum optical devices for  future real-life applications.
Examples range from condensed quantum fluids of electron-hole pairs in quantum bi-layers, to new platforms for future electro-optical devices based on mixed light-matter flying quasi-particles (polaritons), and to new types of tiny sources for optical quantum information bits (single photons).

Quantum Information, Simulation and Sensing

Our research focuses on addressing and manipulating isolated quantum systems, with the following goals:
  • Studying fundamental quantum physics and quantum information science
  • Using them as building blocks for quantum computing and quantum simulation of many-body systems
  • Devising novel, sensitive nanoscale sensors
Currently our research is based on a specific defect in diamond, the Nitrogen Vacancy (NV) color center, which exhibits remarkable and unique properties, including long coherence (~ ms) times at room temperature, optical initialization and readout, and coherent microwave control.