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Atom and, of late, molecule interferometers find application in both the crucible of fundamental research and industrial pursuits. A prevalent methodology in the construction of atom interferometers involves the utilisation of gratings…

Quantum Physics · Physics 2024-03-14 Johannes Fiedler , Bodil Holst

Integration of photonic chips with atomic, micromechanical, chemical and biological systems can advance science and open many possibilities in chip-scale devices and technology. Compact photonic structures for direct coupling of light…

A typical application for laser interferometers is a precision measurement of length changes that result in interferometric phase shifts. Such phase changes are typically predicted numerically, due to the com- plexity of the overlap…

Optics · Physics 2014-06-06 Gudrun Wanner , Gerhard Heinzel

We propose a general framework for constructing a large set of nodal-point semimetals by tuning the number of linearly ($d_L$) and (at most) quadratically ($d_Q$) dispersing directions. By virtue of such a unifying scheme, we identify a new…

Strongly Correlated Electrons · Physics 2019-11-15 Shouvik Sur , Bitan Roy

We describe a compact and versatile multi-frequency laser system for laser-cooling potassium atoms, by frequency doubling a fiber-optic telecom beam ($\simeq 1534$ or $1540$~nm). Low-power fiber-based telecom lasers and components generate…

Light sources utilizing \c{hi}(2) parametric conversion combine high brightness with attractive operation wavelengths in the near and mid-infrared. In optical fibers it is possible to use \c{hi}(3) degenerate four-wave mixing in order the…

We provide an analytical description of the dynamics of an atom in an optical lattice using the method of perturbative adiabatic expansion. A precise understanding of the lattice-atom interaction is essential to taking full advantage of the…

Atomic Physics · Physics 2015-05-14 Tim Kovachy , Jason M. Hogan , David M. S. Johnson , Mark A. Kasevich

The control of large-scale quantum information processors based on arrays of trapped ions requires a means to route and focus multiple laser beams to each of many trapping sites in parallel. Here, we combine arrays of fibres, 3D…

The emergence of a compressible insulator phase, known as the Bose glass, is characteristic of the interplay of interactions and disorder in correlated Bose fluids. While widely studied in tight-binding models, its observation remains…

Quantum Gases · Physics 2020-08-13 Hepeng Yao , Thierry Giamarchi , Laurent Sanchez-Palencia

Whispering gallery mode (WGM) microtoroid resonators are one of the most sensitive biochemical sensors in existence, capable of detecting single molecules. The main barrier for translating these devices out of the laboratory is that light…

Optics · Physics 2024-03-18 Sartanee Suebka , Euan McLeod , Judith Su

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…

Instrumentation and Detectors · Physics 2016-09-14 Akshay Agarwal , Chung-Soo Kim , Richard Hobbs , Dirk van Dyck , Karl K. Berggren

The very recent years have seen a promising start in scientific publications making use of images produced by near-infrared long-baseline interferometry. The technique has reached, at last, a technical maturity level that opens new avenues…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 M. Benisty , J-P. Berger , L. Jocou , P. Labeye , F. Malbet , K. Perraut , P. Kern

In comparison to the radio and sub-millimetric domains, imaging with optical interferometry is still in its infancy. Due to the limited number of telescopes in existing arrays, image generation is a demanding process that relies on…

Instrumentation and Methods for Astrophysics · Physics 2017-06-28 Julien Woillez , Olivier Lai , Guy Perrin , François Reynaud , Marc Baril , Yue Doug , Pierre Fédou

Multimode nonlinear optics offers to overcome a long-standing limitation of fiber optics, tightly phase locking several spatial modes and enabling the coherent transport of a wavepacket through a multimode fiber. A similar problem is…

Optics · Physics 2021-06-16 Chao Mei , Ihar Babushkin , Tamas Nagy , Günter Steinmeyer

We present a simple technique to produce active Q-switching in various types of fiber amplifiers by active integration of an electrostatic actuated deformable metallic micro-mirror. The optical MEMS (MOEMS) device acts as one of the laser…

Other Computer Science · Computer Science 2007-11-29 D. Bouyge , D. Sabourdy , A. Crunteanu , P. Blondy , V. Couderc , J. Lhermite , L. Grossard , A. Barthélemy

Quasi-two-dimensional (quasi-2D) foams consist of monolayers of bubbles squeezed between two narrowly spaced plates. These simplified foams have served successfully in the past to shed light on numerous issues in foam physics. Here we…

Soft Condensed Matter · Physics 2017-06-01 Pavel Yazhgur , Clement Honorez , Wiebke Drenckhan , Dominique Langevin , Anniina Salonen

Graphene photonics has emerged as a promising platform for providing desirable optical functionality. However, graphene's monolayer-scale thickness fundamentally restricts the available light matter interaction, posing a critical design…

Optics · Physics 2017-05-11 PoHan Chang , Charles Lin , Amr S. Helmy

We report on a novel pseudothermal light source based on laser light coupled into an optical multimode fiber. The setup is simple, of low cost, exhibits inherently high directional light emission and allows for a flexible arrangement. By…

Quantum Physics · Physics 2017-08-02 Thomas Mehringer , Steffen Oppel , Joachim von Zanthier

Optical beams and starlight distorted by atmospheric turbulence can be corrected with adaptive optics systems to enable efficient coupling into single-mode fibers. Deformable mirrors, used to flatten the wavefront in astronomical…

A nanostructured chalcogenide-metal optical fiber is proposed. This hybrid nanofiber is embedded with a periodic array of triangular-shaped deep-subwavelength metallic nanowires set up in a bowtie configuration. Our simulations show that…

Optics · Physics 2015-05-27 Bora Ung , Maksim Skorobogatiy