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We report that the polarizations of sidebands emitted from bulk gallium arsenide (GaAs) driven by a strong terahertz (THz) laser while probed with a weak near-infrared laser can be viewed as interferograms from a Michelson-like…

材料科学 · 物理学 2023-05-23 Seamus D. O'Hara , Joseph B. Costello , Qile Wu , Ken West , Loren Pfeiffer , Mark S. Sherwin

We demonstrated the first-order interference between coherent light at 1580 nm and 795 nm by using frequency-domain Mach-Zehnder interferometer (MZI). The MZI is implemented by two frequency-domain BSs based on a second-order nonlinear…

Integrated photonics operating at visible-near-infrared (VNIR) wavelengths offer scalable platforms for advancing optical systems for addressing atomic clocks, sensors, and quantum computers. The complexity of free-space control optics…

Wavefront aberrations are one of the largest uncertainty factors in present atom interferometers. We present a detailed numerical and experimental analysis of this effect based on measured aberrations from optical windows. By placing…

原子物理 · 物理学 2015-06-16 Vladimir Schkolnik , Bastian Leykauf , Matthias Hauth , Christian Freier , Achim Peters

In atom interferometry based on light-induced diffraction, the optical aberrations of the laser beam splitters are a dominant source of noise and systematic effect. In an atomic gyroscope, this effect is dramatically reduced by the use of…

The influence of the collimating conditions of the incident beam on diffraction patterns produced by grazing scattering of fast atoms off crystal surfaces is studied within a semi-quantum approach, named Surface Initial Value Representation…

原子物理 · 物理学 2016-02-24 M. S. Gravielle , J. E. Miraglia

Atom interferometers in optical cavities benefit from strong laser intensities and high-quality wavefronts. The laser frequency pairs that are needed for driving Raman transitions (often generated by phase modulating a monochromatic beam)…

原子物理 · 物理学 2021-02-24 Sofus L. Kristensen , Matt Jaffe , Victoria Xu , Cristian D. Panda , Holger Müller

We report a self-aligned, monolithic electron interferometer, consisting of two 45 nm thick silicon layers separated by 20 $\mu$m. This interferometer was fabricated from a single crystal silicon cantilever on a transmission electron…

仪器与探测器 · 物理学 2016-09-14 Akshay Agarwal , Chung-Soo Kim , Richard Hobbs , Dirk van Dyck , Karl K. Berggren

We present mirror and beamsplitter pulse designs that improve the fidelity of atom interferometry and increase its tolerance of systematic inhomogeneities. These designs are demonstrated experimentally with a cold thermal sample of…

量子物理 · 物理学 2019-12-11 Jack Saywell , Max Carey , Mohammad Belal , Ilya Kuprov , Tim Freegarde

We demonstrate an atomic interferometer in which the atom passes through a single-zone optical beam, consisting of a pair of bichromatic counter-propagating fields. During the passage, the atomic wave packets in two distinct internal states…

量子物理 · 物理学 2009-11-10 M. S. Shahriar , Y. Tan , M. Jheeta , J. Morzinksi , P. R. Hemmer , P. Pradhan

Confining the propagating wavepackets of an atom interferometer inside a waveguide can substantially reduce the size of the device while preserving high sensitivity. We have realized a two-dimensional Sagnac atom interferometer in which…

Atom interferometers provide exquisite measurements of the properties of non-inertial frames. While atomic interactions are typically detrimental to good sensing, efforts to harness entanglement to improve sensitivity remain tantalizing.…

量子气体 · 物理学 2016-11-15 Stephen Ragole , Jacob M. Taylor

The Fraunhofer diffraction of quantum particles from materials with sharp electron-density edges or symmetric bond structures is ubiquitous. In contrast, diffraction from atoms with characteristic asymptotically-diffused electron…

We present a new general design approach of a broad-band detector of gravitational radiation that relies on two atom interferometers separated by a distance L. In this scheme, only one arm and one laser will be used for operating the two…

广义相对论与量子宇宙学 · 物理学 2015-05-18 Nan Yu , Massimo Tinto

We investigate theoretically the behavior of the current oscillations in an electronic Mach-Zehnder interferometer (MZI) as a function of its source bias. Recently, The MZI interference visibility showed an unexplained lobe pattern behavior…

介观与纳米尺度物理 · 物理学 2009-11-13 I. Neder , E. Ginossar

The uniformity of the intensity and phase of laser beams is crucial to high-performance atom interferometers. Inhomogeneities in the laser intensity profile cause contrast reductions and systematic effects in interferometers operated with…

原子物理 · 物理学 2018-11-09 N. Mielec , M. Altorio , R. Sapam , D. Horville , D. Holleville , L. A. Sidorenkov , A. Landragin , R. Geiger

Tommey and Hogan [Phys. Rev. A, 104, 033305 (2021)] have reported a matter-wave interference experiment using Rydberg atoms traveling through inhomogeneous electric fields at approximately 2000 m/s. Using a simplified model containing the…

原子物理 · 物理学 2026-05-15 D. Z. Chan , J. D. D. Martin

We review experimental progress on atom lasers out-coupled from Bose-Einstein condensates, and consider the properties of such beams in the context of precision inertial sensing. The atom laser is the matter-wave analog of the optical…

量子气体 · 物理学 2015-06-11 N. P. Robins , P. A. Altin , J. E. Debs , J. D. Close

We demonstrate a 2-grating free electron Mach-Zehnder interferometer constructed in a transmission electron microscope. A symmetric binary phase grating and condenser lens system forms two spatially separated, focused probes at the sample…

仪器与探测器 · 物理学 2021-10-13 Cameron W. Johnson , Amy E. Turner , Benjamin J. McMorran

Electron diffraction through a thin patterned silicon membrane can be used to create complex spatial modulations in electron distributions by varying the intensity of different reflections using parameters such as crystallographic…

加速器物理 · 物理学 2019-05-30 L. E. Malin , W. S. Graves , M. Holl , J. C. H. Spence , E. A. Nanni , R. K. Li , X. Shen , S. Weathersby