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Electromagnetically-induced transparency has become an important tool to control the optical properties of dense media. However, in a broad class of systems, the interplay between inhomogeneous broadening and the existence of several…

Quantum Physics · Physics 2012-05-10 M. Scherman , O. S. Mishina , P. Lombardi , E. Giacobino , J. Laurat

Light scattered by a regular structure of atoms can exhibit interference signatures, similar to the classical double-slit. These first-order interferences, however, vanish for strong light intensities, restricting potential applications.…

Quantum Physics · Physics 2009-11-13 M. Macovei , J. Evers , G. -x. Li , C. H. Keitel

We experimentally study Bose-Einstein condensation of photons (phBEC) in a dye-filled microcavity. Through multiple absorption and emission cycles the photons inside the microcavity thermalize to the rovibronic temperature of the dye…

Quantum Gases · Physics 2018-01-01 S. Greveling , F. van der Laan , K. L. Perrier , D. van Oosten

The enhanced light transmission through an array of subwavelength holes surrounded by Bragg mirrors is studied, showing that the mirrors act to confine the surface plasmons associated with the Extraordinary Optical Transmission effect,…

Optics · Physics 2007-10-11 Nathan C. Lindquist , Antoine Lesuffleur , Sang-Hyun Oh

From the Feynman path integration theory of view, the Hanbury Brown--Twiss effect would not be observed for one definite two-photon propagation path, as well as the superbunching effect. Here, temporal and spatial superbunching effects are…

Optics · Physics 2021-07-07 Sheng Luo , Huai-Bin Zheng , Wan-Ting Xu , Yu-Chen He , huang-Hao Zhang , Zhuo Xu

Interference of an array of independent Bose-Einstein condensates, whose experiment has been performed recently, is theoretically studied in detail. Even if the number of the atoms in each gas is kept finite and the phases of the gases are…

Quantum Gases · Physics 2011-04-05 Satoshi Ando , Kazuya Yuasa , Mauro Iazzi

Interferometry with trapped atomic Bose-Einstein condensates (BECs) requires the development of techniques to recombine the two paths of the interferometer and map the accumulated phase difference to a measurable atom number difference. We…

We model combined photoassociation and Feshbach resonances in a Bose-Einstein condensate. When the magnetic field is far-off resonance, cross coupling between the two target molecules--enabled by the shared dissociation continuum--leads to…

Atomic Physics · Physics 2008-07-30 Matt Mackie , Matthew Fenty , Danielle Savage , Jake Kesselman

We discuss the concept of an all-optical and ionizing matter-wave interferometer in the time domain. The proposed setup aims at testing the wave nature of highly massive clusters and molecules, and it will enable new precision experiments…

Quantum Physics · Physics 2011-07-07 Stefan Nimmrichter , Philipp Haslinger , Klaus Hornberger , Markus Arndt

The hypothesis of brane-embedded matter appears to gain increasing credibility in astrophysics. However, it can only be truly successful if its implications on particle interaction are consistent with existing knowledge. This letter focuses…

High Energy Physics - Theory · Physics 2007-05-23 Ghenadie N. Mardari

Many quantum advantages in metrology and communication arise from interferometric phenomena. Such phenomena can occur on ultrafast time scales, particularly when energy-time entangled photons are employed. These have been relatively…

Quantum Physics · Physics 2018-06-20 Jean-Philippe W. MacLean , John M. Donohue , Kevin J. Resch

The Unruh effect predicts a thermal response for an accelerated detector moving through the vacuum. Here we propose an interferometric scheme to observe an analogue of the circular Unruh effect using a localized laser coupled to a…

General Relativity and Quantum Cosmology · Physics 2020-12-22 Cisco Gooding , Steffen Biermann , Sebastian Erne , Jorma Louko , William G. Unruh , Joerg Schmiedmayer , Silke Weinfurtner

Optical microscopy has so far been restricted to superficial layers, leaving many important biological questions unanswered. Random scattering causes the ballistic focus, which is conventionally used for image formation, to decay…

Optics · Physics 2012-08-28 Ke Si , Reto Fiolka , Meng Cui

We demonstrate optical interferometry beyond the limits imposed by the photon wavelength using 'triggered' entangled photon pairs from a semiconductor quantum dot. Interference fringes of the entangled biphoton state reveals a periodicity…

Quantum Physics · Physics 2008-03-28 R. M. Stevenson , A. J. Hudson , R. J. Young , P. Atkinson , K. Cooper , D. A. Ritchie , A. J. Shields

Two-photon interference and "ghost" imaging with entangled light have attracted much attention since the last century because of the novel features such as non-locality and sub-wavelength effect. Recently, it has been found that…

Quantum Physics · Physics 2009-11-11 Yan-Hua Zhai , Xi-Hao Chen , Da Zhang , Ling-An Wu

Persistence effects in HgCdTe infrared detectors cause significant artifacts that can impact the quality of science observations for up to many hours after exposure to bright/saturating sources. This problem will have a substantially…

Instrumentation and Methods for Astrophysics · Physics 2024-12-25 Edward L. Chapin , Theodore Grosson , Tim Hardy , Jordan Lothrop

The optical Talbot interferometer has been used to explore the topological charges of optical vortices. We recorded the self-imaging of a diffraction grating in the near-field regime with the optical vortex of several topological charges.…

The correlation of light from two sources leads to an interference pattern if they belong to a specific time interval known as the coherence time, denoted as $\Delta \tau$. The relationship governing this phenomenon is $\Delta \tau \Delta…

Instrumentation and Methods for Astrophysics · Physics 2025-01-20 Km Nitu Rai , Soumen Basak , Subrata Sarangi , Prasenjit Saha

We study the loss of spatial coherence in the extended wave function of fullerenes due to collisions with background gases. From the gradual suppression of quantum interference with increasing gas pressure we are able to support…

We study the Talbot effect in binary waveguide arrays (BWAs). Like in conventional waveguide arrays, the Talbot effect can only occur if the input signal has the period equal to $N$ = 1, 2, 3, 4, and 6 in the transverse direction. However,…

Optics · Physics 2025-01-03 Minh C. Tran , Truong X. Tran