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Showing 1 to 12 of 486 entries
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Near perfect mode overlap between independently seeded, gain-switched lasers.

Optics express

Comandar LC, Lucamarini M, Fröhlich B, Dynes JF, Yuan ZL, Shields AJ.
PMID: 27505752
Opt Express. 2016 Aug 08;24(16):17849-59. doi: 10.1364/OE.24.017849.

We drastically improve the mode overlap between independently seeded, gain-switched laser diodes operating at gigahertz repetition rates by implementing a pulsed light seeding technique. Injecting pulsed light reduces the emission time jitter and enables frequency chirp synchronization while maintaining...

Radiotherapy for iris metastasis from esophageal carcinoma: A series of three cases.

Oman journal of ophthalmology

Das C, Shields CL.
PMID: 27433035
Oman J Ophthalmol. 2016 May-Aug;9(2):93-6. doi: 10.4103/0974-620X.184526.

BACKGROUND: Description of three cases of metastatic esophageal carcinoma to the iris and focus on management strategies.METHODS: A 48-year-old man (Case 1) with previously treated stage IV esophageal carcinoma presented with blurred vision in the left eye (OS) for...

Experimental measurement-device-independent quantum digital signatures.

Nature communications

Roberts GL, Lucamarini M, Yuan ZL, Dynes JF, Comandar LC, Sharpe AW, Shields AJ, Curty M, Puthoor IV, Andersson E.
PMID: 29061966
Nat Commun. 2017 Oct 23;8(1):1098. doi: 10.1038/s41467-017-01245-5.

The development of quantum networks will be paramount towards practical and secure telecommunications. These networks will need to sign and distribute information between many parties with information-theoretic security, requiring both quantum digital signatures (QDS) and quantum key distribution (QKD)....

Density dependent composition of InAs quantum dots extracted from grazing incidence x-ray diffraction measurements.

Scientific reports

Sharma M, Sanyal MK, Farrer I, Ritchie DA, Dey AB, Bhattacharyya A, Seeck OH, Skiba-Szymanska J, Felle M, Bennett AJ, Shields AJ.
PMID: 26506865
Sci Rep. 2015 Oct 28;5:15732. doi: 10.1038/srep15732.

Epitaxial InAs quantum dots grown on GaAs substrate are being used in several applications ranging from quantum communications to solar cells. The growth mechanism of these dots also helps us to explore fundamental aspects of self-organized processes. Here we...

Quantum teleportation of laser-generated photons with an entangled-light-emitting diode.

Nature communications

Stevenson RM, Nilsson J, Bennett AJ, Skiba-Szymanska J, Farrer I, Ritchie DA, Shields AJ.
PMID: 24300834
Nat Commun. 2013;4:2859. doi: 10.1038/ncomms3859.

Quantum teleportation can transfer information between physical systems, which is essential for engineering quantum networks. Of the many technologies being investigated to host quantum bits, photons have obvious advantages as 'pure' quantum information carriers, but their bandwidth and energy...

Depolarization Dynamics in a Strongly Interacting Solid-State Spin Ensemble.

Physical review letters

Choi J, Choi S, Kucsko G, Maurer PC, Shields BJ, Sumiya H, Onoda S, Isoya J, Demler E, Jelezko F, Yao NY, Lukin MD.
PMID: 28306313
Phys Rev Lett. 2017 Mar 03;118(9):093601. doi: 10.1103/PhysRevLett.118.093601. Epub 2017 Mar 03.

We study the depolarization dynamics of a dense ensemble of dipolar interacting spins, associated with nitrogen-vacancy centers in diamond. We observe anomalously fast, density-dependent, and nonexponential spin relaxation. To explain these observations, we propose a microscopic model where an...

Dome-shaped macula simulating choroidal hemangioma in a myopic patient.

Oman journal of ophthalmology

Iyer PG, Say EA, Shields CL.
PMID: 26903729
Oman J Ophthalmol. 2015 Sep-Dec;8(3):188-90. doi: 10.4103/0974-620X.169899.

To describe a case of dome-shaped macula simulating a choroidal hemangioma and discuss multimodal imaging features to distinguish between these disorders. A 52-year-old myopic male with a refraction of -8.00 D in both eyes developed blurred vision in the...

BAER suppression during posterior fossa dural opening.

Surgical neurology international

Shields CB, Shields LB, Jiang YD, Yao T, Zhang YP, Sun DA.
PMID: 25883849
Surg Neurol Int. 2015 Apr 09;6:57. doi: 10.4103/2152-7806.154775. eCollection 2015.

BACKGROUND: Intraoperative monitoring with brainstem auditory evoked responses (BAER) provides an early warning signal of potential neurological injury and may avert tissue damage to the auditory pathway or brainstem. Unexplained loss of the BAER signal in the operating room...

Efficient readout of a single spin state in diamond via spin-to-charge conversion.

Physical review letters

Shields BJ, Unterreithmeier QP, de Leon NP, Park H, Lukin MD.
PMID: 25884129
Phys Rev Lett. 2015 Apr 03;114(13):136402. doi: 10.1103/PhysRevLett.114.136402. Epub 2015 Mar 31.

Efficient readout of individual electronic spins associated with atomlike impurities in the solid state is essential for applications in quantum information processing and quantum metrology. We demonstrate a new method for efficient spin readout of nitrogen-vacancy (NV) centers in...

Choroidal metastasis from leiomyosarcoma in two cases.

Oman journal of ophthalmology

Feinstein E, Kaliki S, Shields CL, Ehya H, Shields JA.
PMID: 24799797
Oman J Ophthalmol. 2014 Jan;7(1):19-21. doi: 10.4103/0974-620X.127917.

Leiomyosarcoma is a malignant tumor of mesenchymal cells and is the most common soft-tissue sarcoma. Leiomyosarcoma is a notably rare tumor in the ophthalmic region and can be of primary, secondary or metastatic origin. To the best of our...

Automatic detection of molecular symmetry in the Cambridge Structural Database.

Acta crystallographica. Section B, Structural science

Cole JC, Yao JW, Shields GP, Motherwell WD, Allen FH, Howard JA.
PMID: 11173371
Acta Crystallogr B. 2001 Feb;57:88-94. doi: 10.1107/s010876810001380x.

A method for the detection of approximate molecular symmetry in crystal structures has been developed. The point-group symmetry is assigned to each molecule and the relevant symmetry elements can be visualized, superimposed on the molecule. The method has been...

Visualization and characterization of non-covalent networks in molecular crystals: automated assignment of graph-set descriptors for asymmetric molecules.

Acta crystallographica. Section B, Structural science

Motherwell WD, Shields GP, Allen FH.
PMID: 10927446
Acta Crystallogr B. 1999 Dec 01;55:1044-1056. doi: 10.1107/s0108768199006497.

A method of visualizing intermolecular networks (for example, hydrogen-bonded networks) in the crystalline state has been developed, based on the concept of link atoms, i.e. those atoms deemed to be in contact with each unique molecule or ion in...

Showing 1 to 12 of 486 entries