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We suggest a new method for quantum optical control with nanoscale resolution. Our method allows for coherent far-field manipulation of individual quantum systems with spatial selectivity that is not limited by the wavelength of radiation…

Quantum Physics · Physics 2008-03-10 Alexey V. Gorshkov , Liang Jiang , Markus Greiner , Peter Zoller , Mikhail D. Lukin

We investigate the harmonic response of neon atoms to mid-IR laser fields (2000-3000nm) using a single-active electron (SAE) model and the fully ab initio all-electron R-Matrix with Time-dependence (RMT) method. The laser peak intensity and…

We report a proof-of-concept demonstration of a tunable infrared (IR) optical coherence tomography (OCT) technique with detection of only visible range photons. Our method is based on the nonclassical interference of frequency correlated…

Quantum Physics · Physics 2018-04-09 Anna V. Paterova , Hongzhi Yang , Chengwu An , Dmitry A. Kalashnikov , Leonid A. Krivitsky

An optical atomic clock scheme is developed that utilizes two lasers to establish coherent coupling between the $5s^2 \phantom{}^1S_0$ ground state of $^{88}$Sr and the first excited state, $5s5p \phantom{}^3P_0$. The coupling is mediated…

Atomic Physics · Physics 2009-11-10 Robin Santra , Ennio Arimondo , Tetsuya Ido , Chris H. Greene , Jun Ye

We report on the resonant emission in coherently-driven single semiconductor quantum dots. We demonstrate that an ultra-weak non-resonant laser acts as an optical gate for the quantum dot resonant response. We show that the gate laser…

Mesoscale and Nanoscale Physics · Physics 2011-09-21 Hai Son Nguyen , Gregory Sallen , Christophe Voisin , Philippe Roussignol , Carole Diederichs , Guillaume Cassabois

Optical pump-probe signals can be viewed as work done by the matter while transferring the energy between two coherent baths (from pump to probe). In thermodynamics a heat engine, such as laser, is a device which performs similar work but…

Quantum Physics · Physics 2021-04-14 Md Qutubuddin , Konstantin E. Dorfman

Spatiotemporal optical coherence (STOC) imaging is a new technique for suppressing coherent crosstalk noise in Fourier-domain full-field optical coherence tomography (FD-FF-OCT). In STOC imaging, the timevarying inhomogeneous phase masks…

Quantum lithography (QL) has been suggested as a means of achieving enhanced spatial resolution for optical imaging, but its realization has been held back by the low multi-photon detection rates of recording materials. Recently, an optical…

Quantum Physics · Physics 2015-05-28 Heedeuk Shin , Kam Wai Clifford Chan , Hye Jeong Chang , Robert W. Boyd

Dissipative Kerr soliton microcomb has been recognized as a promising on-chip multi-wavelength laser source for fiber optical communications, as its comb lines possess frequency and phase stability far beyond independent lasers. In the…

Signal Processing · Electrical Eng. & Systems 2021-01-05 Yong Geng , Heng Zhou , Wenwen Cui , Xinjie Han , Qiang Zhang , Boyuan Liu , Guangwei Deng , Qiang Zhou , Kun Qiu

Existing super-resolution methods of optical imaging hold a solid place as an application in natural sciences, but many new developments allow for beating the diffraction limit in a more subtle way. One of the recently explored strategies…

Quantum Physics · Physics 2022-02-08 Mateusz Mazelanik , Adam Leszczyński , Michał Parniak

Transparent conducting oxides (TCO) such as indium-tin-oxide (ITO) exhibit strong optical nonlinearity in the frequency range where their permittivities are near zero. We leverage this nonlinear optical response to realize a sub-picosecond…

The spatial coherence of laser sources has limited their application to parallel imaging and projection due to coherent artifacts, such as speckle. In contrast, traditional incoherent light sources, such as thermal sources or light emitting…

Optics · Physics 2017-03-30 B. Redding , A. Cerjan , X. Huang , M. L. Lee , A. D. Stone , M. A. Choma , H. Cao

Tracking and localizing objects is a central problem in computer-assisted surgery. Optical coherence tomography (OCT) can be employed as an optical tracking system, due to its high spatial and temporal resolution. Recently, 3D convolutional…

Image and Video Processing · Electrical Eng. & Systems 2020-07-03 Marcel Bengs , Nils Gessert , Alexander Schlaefer

The photoexcited state in superconducting metals and alloys was studied via pump-probe spectroscopy. A pulsed Ti:sapphire laser was used to create the non-equilibrium state and the far-infrared pulses of a synchrotron storage ring, to which…

Here we describe how certain classes of two dimensional topological insulators, including the CdTe$/$HgTe quantum wells, display a new type of optical activity in two dimensions similar to the magneto-optical Kerr effect in the quantum Hall…

Mesoscale and Nanoscale Physics · Physics 2014-07-25 Alberto Cortijo

The contour integration technique applied to calculate the optical conductivity tensor at finite temperatures in the case of inhomogeneous surface layered systems within the framework of the spin-polarized relativistic screened…

Materials Science · Physics 2007-05-23 A. Vernes , L. Szunyogh , P. Weinberger

We propose a dynamic Kerr effect experiment for the distinction between dynamic heterogeneous and homogeneous relaxation in glassy systems. The possibility of this distinction is due to the inherent nonlinearity of the Kerr effect signal.…

Soft Condensed Matter · Physics 2009-11-11 Uli Haeberle , Gregor Diezemann

Quantum-optical coherence tomography (Q-OCT) is an interferometric technique for axial imaging offering several advantages over conventional methods. Chirped-pulse interferometry (CPI) was recently demonstrated to exhibit all of the…

Quantum Physics · Physics 2009-09-07 Jonathan Lavoie , Rainer Kaltenbaek , Kevin J. Resch

Optical coherence tomography (OCT) is a non-invasive imaging technology which can provide micrometer-resolution cross-sectional images of the inner structures of the eye. It is widely used for the diagnosis of ophthalmic diseases with…

Image and Video Processing · Electrical Eng. & Systems 2019-12-10 Donghuan Lu , Morgan Heisler , Da Ma , Setareh Dabiri , Sieun Lee , Gavin Weiguang Ding , Marinko V. Sarunic , Mirza Faisal Beg

The possibility of generation and propagation of ultraslow bright optical solitons in asymmetric three-coupled quantum well systems is studied in this paper. These bright solitons owe their existence to Kerr and quintic nonlinearities which…

Optics · Physics 2012-07-16 S. Shwetanshumala , S. Konar , Anjan Biswas