Resonant Interaction of Modulation-correlated Quantum Electron Wavepackets with Bound Electron States

Kavli Affiliate: Amnon Yariv | First 5 Authors: Avraham Gover, Bin Zhang, Du Ran, Reuven Ianconescu, Aharon Friedman | Summary: Free-Electron Bound-Electron Resonant Interaction (FEBERI) is the resonant inelastic interaction of periodically density-bunched free electrons with a quantum two level system. We present a comprehensive relativistic quantum mechanical theory for this interaction in a model […]


Continue.. Resonant Interaction of Modulation-correlated Quantum Electron Wavepackets with Bound Electron States

Resonant Interaction of Modulation-correlated Quantum Electron Wavepackets with Bound Electron States

Kavli Affiliate: Amnon Yariv | First 5 Authors: Avraham Gover, Bin Zhang, Du Ran, Reuven Ianconescu, Aharon Friedman | Summary: Free-Electron Bound-Electron Resonant Interaction (FEBERI) is the resonant inelastic interaction of periodically density-bunched free electrons with a quantum two level system. We present a comprehensive relativistic quantum mechanical theory for this interaction in a model […]


Continue.. Resonant Interaction of Modulation-correlated Quantum Electron Wavepackets with Bound Electron States

Topology optimized multi-functional mechanically reconfigurable meta-optics studied at microwave frequencies

Kavli Affiliate: Andrei Faraon | First 5 Authors: Conner Ballew, Gregory Roberts, Philip Camayd-Muñoz, Maximilien F Debbas, Andrei Faraon | Summary: Metasurfaces advanced the field of optics by reducing the thickness of optical components and merging multiple functionalities into a single layer device. However, this generally comes with a reduction in performance, especially for multifunctional […]


Continue.. Topology optimized multi-functional mechanically reconfigurable meta-optics studied at microwave frequencies

Diffusing wave spectroscopy: a unified treatment on temporal sampling and speckle ensemble methods

Kavli Affiliate: Changhuei Yang | First 5 Authors: Jian Xu, Ali K. Jahromi, Changhuei Yang, , | Summary: Diffusing wave spectroscopy (DWS) is a well-known set of methods to measure the temporal dynamics of dynamic samples. In DWS, dynamic samples scatter the incident coherent light, and the information of the temporal dynamics is encoded in […]


Continue.. Diffusing wave spectroscopy: a unified treatment on temporal sampling and speckle ensemble methods

Optimization-Based Visual-Inertial SLAM Tightly Coupled with Raw GNSS Measurements

Kavli Affiliate: Wei Gao | First 5 Authors: Jinxu Liu, Wei Gao, Zhanyi Hu, , | Summary: Unlike loose coupling approaches and the EKF-based approaches in the literature, we propose an optimization-based visual-inertial SLAM tightly coupled with raw Global Navigation Satellite System (GNSS) measurements, a first attempt of this kind in the literature to our […]


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Towards milli-Hertz laser frequency noise on a chip

Kavli Affiliate: Kerry Vahala | First 5 Authors: Heming Wang, Lue Wu, Zhiquan Yuan, Kerry Vahala, | Summary: Narrow-linewidth lasers are important to many applications spanning precision metrology to sensing systems. Their miniaturization in the form of on-chip lasers is receiving increasing attention. Here, a noise level that is consistent with a fundamental frequency noise […]


Continue.. Towards milli-Hertz laser frequency noise on a chip

Motivations and Preliminary Design for Mid-Air Deployment of a Science Rotorcraft on Mars

Kavli Affiliate: Morteza Gharib | First 5 Authors: Jeff Delaune, Jacob Izraelevitz, Larry A. Young, William Rapin, Evgeniy Sklyanskiy | Summary: Mid-Air Deployment (MAD) of a rotorcraft during Entry, Descent and Landing (EDL) on Mars eliminates the need to carry a propulsion or airbag landing system. This reduces the total mass inside the aeroshell by […]


Continue.. Motivations and Preliminary Design for Mid-Air Deployment of a Science Rotorcraft on Mars

Motivations and Preliminary Design for Mid-Air Deployment of a Science Rotorcraft on Mars

Kavli Affiliate: Morteza Gharib | First 5 Authors: Jeff Delaune, Jacob Izraelevitz, Larry A. Young, William Rapin, Evgeniy Sklyanskiy | Summary: Mid-Air Deployment (MAD) of a rotorcraft during Entry, Descent and Landing (EDL) on Mars eliminates the need to carry a propulsion or airbag landing system. This reduces the total mass inside the aeroshell by […]


Continue.. Motivations and Preliminary Design for Mid-Air Deployment of a Science Rotorcraft on Mars

Electron Thermalization and Relaxation in Laser-Heated Nickel by Few-Femtosecond Core-Level Transient Absorption Spectroscopy

Kavli Affiliate: Scott K. Cushing | First 5 Authors: Hung-Tzu Chang, Alexander Guggenmos, Scott K. Cushing, Yang Cui, Naseem Ud Din | Summary: Direct measurements of photoexcited carrier dynamics in nickel are made using few-femtosecond extreme ultraviolet (XUV) transient absorption spectroscopy at the nickel M$_{2,3}$ edge. It is observed that the core-level absorption lineshape of […]


Continue.. Electron Thermalization and Relaxation in Laser-Heated Nickel by Few-Femtosecond Core-Level Transient Absorption Spectroscopy

Sub-Kelvin Cooling for the BICEP Array Project

Kavli Affiliate: James Bock | First 5 Authors: Lionel Duband, Thomas Prouve, James Bock, Lorenzo Moncelsi, Alessandro Schillaci | Summary: In the field of astrophysics, the faint signal from distant galaxies and other dim cosmological sources at millimeter and submillimeter wavelengths require the use of high-sensitivity experiments. Cryogenics and the use of low-temperature detectors are […]


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