Results 61 to 70 of about 12,692 (168)

Lithographically engineered shallow nitrogen-vacancy centers in diamond for external nuclear spin sensing

New Journal of Physics, 2018
The simultaneous control of the number and position of negatively charged nitrogen-vacancy (NV) centers in diamond was achieved. While single near-surface NV centers are known to exhibit outstanding capabilities in external spin sensing, trade-off ...
Ryosuke Fukuda, Priyadharshini Balasubramanian, Itaru Higashimata, Godai Koike, Takuma Okada, Risa Kagami, Tokuyuki Teraji, Shinobu Onoda, Moriyoshi Haruyama, Keisuke Yamada, Masafumi Inaba, Hayate Yamano, Felix M Stürner, Simon Schmitt, Liam P McGuinness, Fedor Jelezko, Takeshi Ohshima, Takahiro Shinada, Hiroshi Kawarada, Wataru Kada, Osamu Hanaizumi, Takashi Tanii, Junichi Isoya   +22 more
doaj   +1 more source

Lighting the way forward: The bright future of photonic integrated circuits

Sensors International
Integrated optics, a key photonics technology, has major implications for telecommunications, sensing, and computing. By integrating optical elements like lasers, modulators, and detectors onto a single chip, it enhances performance while reducing the ...
M.A. Butt, B. Janaszek, R. Piramidowicz
doaj   +1 more source

Path-polarization hyperentangled and cluster states of photons on a chip

Light: Science & Applications, 2016
Encoding many qubits in different degrees of freedom (DOFs) of single photons is one of the routes toward enlarging the Hilbert space spanned by a photonic quantum state. Hyperentangled photon states (that is, states showing entanglement in multiple DOFs)
Mario Arnolfo Ciampini, Adeline Orieux, Stefano Paesani, Fabio Sciarrino, Giacomo Corrielli, Andrea Crespi, Roberta Ramponi, Roberto Osellame, Paolo Mataloni   +8 more
doaj   +1 more source

Active temporal multiplexing of indistinguishable heralded single photons

Nature Communications, 2016
Deterministically generated single photons are useful for quantum communications, but the processes that create such light are often non-deterministic.
C. Xiong, X. Zhang, Z. Liu, M. J. Collins, A. Mahendra, L. G. Helt, M. J. Steel, D. -Y. Choi, C. J. Chae, P. H. W. Leong, B. J. Eggleton   +10 more
doaj   +1 more source

Frontiers in Quantum Science and Technology

Frontiers in Quantum Science and Technology, 2022
Fedor Jelezko, Fedor Jelezko
doaj   +1 more source

Inverse microparticle design for enhanced optical trapping and detection efficiency in all six degrees of freedom

JPhys Photonics
Achieving quantum-limited motional control of optically trapped particles beyond the sub-micrometer scale is an outstanding problem in levitated optomechanics.
Moosung Lee, Benjamin A Stickler, Thomas Pertsch, Sungkun Hong   +3 more
doaj   +1 more source

Integrated photonics for continuous-variable quantum optics

Quantum technologies promise profound advances in communication security, sensing and computing. The underpinning hardware must be engineered to generate, manipulate and detect quantum phenomena with exceptional performance, whilst being mass-manufacturable for real-world applications. A leading approach is chip-scale quantum photonics.
Clark, R. N., Puzio, B., Green, O. M., Pradyumna, S. T., Trojak, O., Politi, A., Matthews, J. C. F.   +6 more
openaire   +2 more sources

Integrated optics for coupled-cavity quantum electrodynamics

, 2013
This thesis reports on the development of an array of plane-concave Fabry-Perot microcavities containing atoms (or other quantum emitters), interconnected by UV-written waveguides on a silica-on-silicon chip. The microcavities are formed by a mirror coated on the end facet of the chip and an array of spherical micromirrors etched on silicon. This is to
openaire   +3 more sources

Exploring the frontier: nonlinear optics in low dimensional materials

Nanophotonics
Nonlinear optics, the study of intense light–matter interactions, traditionally uses bulk materials like LiNbO3 for device fabrication. However, these materials face challenges such as limited nonlinear susceptibility, large dimensions, and phase ...
Adeshina Mohammad A., Kim Hyunmin
doaj   +1 more source

Integrated Optics for Quantum Communication

, 2002
This work reports the realization of energy-time and time-bin entangled photon-pair sources based on a periodically poled lithium niobate (PPLN) waveguide. Degenerate twin photons around 1314 nm wavelength are created by spontaneous parametric down-conversion and coupled into standard telecom fibers.The PPLN waveguide produces a conversion efficiency ...
openaire   +1 more source