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Color centers in Si could serve as both efficient quantum emitters and quantum memories with long coherence times in an all-silicon platform. Of the various known color centers, the T center holds particular promise because it possesses a…

We demonstrate the realization of an electrically-driven integrated source of surface plasmon polaritons. Light-emitting individual single-walled carbon nanotube field effect transistors were fabricated in a plasmonic-ready platform. The…

A nanoparticle detection scheme with single particle resolution is presented. The sensor contains only a taper fiber thus offering the advantages of compactness and installation flexibility. Sensing method is based on monitoring the…

光学 · 物理学 2013-05-31 Jiangang Zhu , Sahin Kaya Ozdemir , Lan Yang

Watching the motion of electrons on their natural nanometre length- and femtosecond time scales is a fundamental goal and an open challenge of contemporary ultrafast science. Optical techniques and electron microscopy currently mostly…

光学 · 物理学 2018-01-23 Jan Vogelsang , Germann Hergert , Dong Wang , Petra Groß , Christoph Lienau

We investigate single photon generation from individual self-assembled InGaAs quantum dots coupled to the guided optical mode of a GaAs photonic crystal waveguide. By performing confocal microscopy measurements on single dots positioned…

介观与纳米尺度物理 · 物理学 2012-05-08 A. Laucht , S. Pütz , T. Günthner , N. Hauke , R. Saive , S. Frédérick , M. Bichler , M. -C. Amann , A. W. Holleitner , M. Kaniber , J. J. Finley

An atomic ion is trapped at the tip of a single-mode optical fiber in a cryogenic (8 K) surface-electrode ion trap. The fiber serves as an integrated source of laser light, which drives the quadrupole qubit transition of $^{88}$Sr$^+$.…

量子物理 · 物理学 2011-05-31 Tony Hyun Kim , Peter F. Herskind , Isaac L. Chuang

We demonstrate noncontact, high quality surface modification with spatial resolution of ~20 nm. The nanowriting is based on the interaction between the surface and the tip of an Atomic force microscope illuminated by a focused laser beam…

材料科学 · 物理学 2015-05-13 Alexander A Milner , Kaiyin Zhang , Yehiam Prior

Structured light have made deep impacts on modern biotechnology and clinical practice, with numerous optical systems and lasers currently being used in medicine to treat disease. We demonstrate a new concept of fiber-based optical hook…

光学 · 物理学 2020-07-23 Igor V. Minin , Oleg V. Minin , Yan-Yu Liu , Cheng-Yang Liu

Point-spread function of the probe forming optics ($PSF_{optics} $) is reported for the first time in an uncorrected (without multipole correctors) scanning electron microscope (SEM). In an SEM, the electron probe information is lost as the…

材料科学 · 物理学 2024-07-02 Surya Kamal , Richard K. Hailstone

Local deformation of atomically thin van der Waals materials provides a powerful approach to create site-controlled chip-compatible single-photon emitters (SPEs). However, the microscopic mechanisms underlying the formation of such…

Monolayer semiconductor transferred on nanopillar arrays provides site-controlled, on-chip single photon emission, which is a scalable light source platform for quantum technologies. However, the brightness of these emitters reported to…

We report near-field scanning optical imaging with an active tip made of a single fluorescent CdSe nanocrystal attached at the apex of an optical tip. Although the images are acquired only partially because of the random blinking of the…

Spin-polarized electron beam sources enable studies of spin-dependent electric and magnetic effects at the nanoscale. We propose a method of creating spin-polarized electrons on an integrated photonics chip by laser driven nanophotonic…

Tip-enhanced photoluminescence (TEPL) measurements are performed with sub-nanometer spatial resolution on individual molecules decoupled from a metallic substrate by a thin NaCl layer. TEPL spectra reveal progressive fluorescence quenching…

介观与纳米尺度物理 · 物理学 2024-03-18 Katharina Kaiser , Michelangelo Romeo , Fabrice Scheurer , Guillaume Schull , Anna Rosławska

We report the coupling of photons from an optical fiber taper to surface plasmon modes of silver nanowires. The launch of propagating plasmons can be realized not only at ends of the nanowires, but also at the midsection. The degree of the…

This work demonstrates photon emission gain, i.e., emission of multiple photons per injected electron, through impact excitation in Er-doped silicon light-emitting diodes (LEDs). Conventional methods for exciting Er ions in silicon suffer…

Photonic modes in dielectric nanostructures, e.g., wide gap semiconductor like CeO2 (ceria), has potential for various applications such as light harvesting and information transmission. To fully understand the properties of such phenomenon…

光学 · 物理学 2024-08-06 Yifan Wang , Shize Yang , Peter A. Crozier

We present a comprehensive experimental and numerical study of photoelectron streaking at metallic nanotips using single-cycle Terahertz (THz) transients and a static bias voltage as an external control parameter. Analyzing bias voltage…

光学 · 物理学 2020-08-31 Lara Wimmer , Oliver Karnbach , Georg Herink , Claus Ropers

In this paper, we present the results of experimental observation of strong-field photoemission from a diamond field-emitter array (DFEA) illuminated by a focused laser beam with 1035 nm wavelength. Having the advantage of high emission…

加速器物理 · 物理学 2021-07-02 V. Pavlenko , D. Kim , H. L. Andrews , D. V. Gorelov , E. I. Simakov

High-index dielectric nanoparticles have become a powerful platform for modern light science, enabling various fascinating applications, especially in nonlinear nanophotonics for which they enable special types of optical nonlinearity, such…