Results 31 to 40 of about 6,279,893 (294)

Two-photon-absorption-based OSNR monitor for NRZ-PSK transmission systems [PDF]

, 2010
A two-photon absorption microcavity-based technique for monitoring in-band optical signal-to-noise ratio (OSNR) in nonreturn-to-zero phase-shift-keying systems is presented.
Guo, Wei Hua, Reid, Douglas A., Anandarajah, Prince M., Barry, Liam P., O'Dowd, John, Bondarczuk, Krzysztof, Lynch, Michael, Donegan, John Francis, Shi, Kai, Bradley, Ann Louise, Dexter, Karl J.   +10 more
core   +1 more source

A chiral one-dimensional atom using a quantum dot in an open microcavity

npj Quantum Information, 2022
In a chiral one-dimensional atom, a photon propagating in one direction interacts with the atom; a photon propagating in the other direction does not. Chiral quantum optics has applications in creating nanoscopic single-photon routers, circulators, phase-
Nadia O. Antoniadis, Natasha Tomm, Tomasz Jakubczyk, Rüdiger Schott, Sascha R. Valentin, Andreas D. Wieck, Arne Ludwig, Richard J. Warburton, Alisa Javadi   +8 more
doaj   +1 more source

All-optical sampling utilising two-photon absorption in semiconductor microcavity [PDF]

, 2005
A highly-efficient optical sampling system based on Two-Photon Absorption in a semiconductor micro-cavity is presented.
Krug, T., Maguire, Paul, J., Donegan, John Francis, Folliot, Hervé, Donegan, J.F., Barry, Liam,, Bradley, A.L., Folliot, H., Lynch, M., Barry, Liam P., Lynch, Michael, Bradley, Ann Louise, Maguire, Paul,, Maguire, Paul J., Barry, Liam, P.   +14 more
core   +2 more sources

Fluorescence Anisotropy in Radachlorin and Chlorin e6 in Water–Methanol Solutions under One- and Two-Photon Excitation

Photonics, 2022
The fluorescence anisotropy of photosensitizers Radachlorin and chlorin e6 was studied using the time-resolved single photon-counting technique under one- and two-photon excitation within the Soret absorption band.
Ioanna A. Gorbunova, Maxim E. Sasin, Anna A. Zhikhoreva, Andrey V. Belashov, Dina M. Beltukova, Irina V. Semenova, Oleg S. Vasyutinskii   +6 more
doaj   +1 more source

Optical signal processing via two-photon absorption in a semiconductor microcavity for the next generation of high-speed optical communications network [PDF]

, 2006
Due to the introduction of new broadband services, individual line data rates are expected to exceed 100 Gb/s in the near future. To operate at these high speeds, new optical signal processing techniques will have to be developed.
Guo, Wei Hua, O\u27Dowd, John, Krug, T., O'Dowd, John, Bradley, L., Donegan, John Francis, Folliot, Hervé, Maguire, P.J., O'Dowd, J., Guo, W.H., Donegan, J., Folliot, H., Lynch, M., Barry, Liam P., Lynch, Michael, Bradley, Ann Louise, Maguire, Paul J., Barry, Liam, P.   +17 more
core   +2 more sources

All-optical pulse processing for advanced photonic communication system [PDF]

, 2008
This paper investigates the use of a two-photon absorption photodetector for high speed processing of ultrashort optical pulses in advanced photonic communication systems. Specifically the paper describes how the two-photon absorption photodetector maybe
Guo, Wei Hua, O\u27Dowd, John, K. J. Dexter, O'Dowd, John, Donegan, John Francis, W.H. Guo, A.L. Bradley, P.J. Maguire, Dexter, Karl J., Reid, Douglas A., Barry, Liam P., K. Bondarczuk, Bondarczuk, Krzysztof, Lynch, Michael, D.A. Reid, J. O'Dowd, J.F. Donegan, Bradley, Ann Louise, L.P. Barry, Maguire, Paul J., M. Lynch   +20 more
core   +2 more sources

Synthesis, as well as linear and nonlinear fluorescence properties of 5, 5’-bis(4-N-carbazolylstyryl)-2, 2’-bithiophene [PDF]

Journal of the Serbian Chemical Society, 2004
Anew bithiophene-based organic luminescence material, named 5,5’-bis(4-N-carbazoylstyryl)- 2,2’-bithiophene (BCSBT), was synthesized. Its single-photon excited fluorescence band is located in the range of 520–530 nm, with a quantum yield of around 10 ...
Xia Guang-Ming, Lu Ping, Xu Gui-Bao
doaj   +3 more sources

Ultra-high-precision detection of single microwave photons based on a hybrid system between a Majorana zero mode and a quantum dot

Physical Review Research, 2023
The ability to detect single photons has become increasingly essential due to the rise of photon-based quantum computing. In this theoretical work, we propose a system consisting of a quantum dot (QD) side-coupled to a superconducting nanowire.
Eric Chatterjee, Wei Pan, Daniel Soh
doaj   +1 more source

Coherent perfect absorption of path entangled single photons

Optics Express, 2014
We examine the question of coherent perfect absorption (CPA) of single photons, and more generally, of the quantum fields by a {\it macroscopic} medium. We show the CPA of path entangled single photons in a Fabry-Perot interferometer containing an absorptive medium.
Huang, Sumei, Agarwal, G. S.
openaire   +3 more sources

Entangled Absorption of a Single Photon with a Single Spin in Diamond

Physical Review Letters, 2015
Quantum entanglement, a key resource for quantum information science, is inherent in a solid. It has been recently shown that entanglement between a single optical photon and a single spin qubit in a solid is generated via spontaneous emission. However, entanglement generation by measurement is rather essential for quantum operations. We here show that
Hideo, Kosaka, Naeko, Niikura
openaire   +2 more sources