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Showing 1 to 11 of 11 entries
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Generation of narrow-bandwidth paired photons: use of a single driving laser.

Physical review letters

Kolchin P, Du S, Belthangady C, Yin GY, Harris SE.
PMID: 17025883
Phys Rev Lett. 2006 Sep 15;97(11):113602. doi: 10.1103/PhysRevLett.97.113602. Epub 2006 Sep 12.

We describe a generator of narrow-band paired photons. A single retroreflected Ti:sapphire laser is used to cool, render transparent, and parametrically pump a cloud of (87)Rb atoms. We attain a paired-photon generation rate into opposing fibers of 600 counts/s...

Subnatural linewidth biphotons with controllable temporal length.

Physical review letters

Du S, Kolchin P, Belthangady C, Yin GY, Harris SE.
PMID: 18518372
Phys Rev Lett. 2008 May 09;100(18):183603. doi: 10.1103/PhysRevLett.100.183603. Epub 2008 May 08.

This Letter describes the generation of biphotons with a temporal length that can be varied over the range of 50-900 ns, with an estimated subnatural linewidth as small as 0.75 MHz. We make use of electromagnetically induced transparency and...

From the Hippocratic oath to the stone center: how to deal with stone disease.

Minerva urology and nephrology

Esperto F, Pietropaolo A, Emiliani E, DE Conninck V, Tailly T, Keller EX, Talso M, Tonyali S, Sener ET, Zeeshan Hameed BM, Usai P, DI Paola V, Papalia R, Scarpa RM.
PMID: 34847649
Minerva Urol Nephrol. 2021 Oct;73(5):561-563. doi: 10.23736/S2724-6051.21.04722-4.

No abstract available.

Suppression of spin-bath dynamics for improved coherence of multi-spin-qubit systems.

Nature communications

Bar-Gill N, Pham LM, Belthangady C, Le Sage D, Cappellaro P, Maze JR, Lukin MD, Yacoby A, Walsworth R.
PMID: 22617298
Nat Commun. 2012 May 22;3:858. doi: 10.1038/ncomms1856.

Multi-qubit systems are crucial for the advancement and application of quantum science. Such systems require maintaining long coherence times while increasing the number of qubits available for coherent manipulation. For solid-state spin systems, qubit coherence is closely related to...

Hiding single photons with spread spectrum technology.

Physical review letters

Belthangady C, Chuu CS, Yu IA, Yin GY, Kahn JM, Harris SE.
PMID: 20867167
Phys Rev Lett. 2010 Jun 04;104(22):223601. doi: 10.1103/PhysRevLett.104.223601. Epub 2010 Jun 01.

We describe a proof-of-principal experiment demonstrating the use of spread spectrum technology at the single photon level. We show how single photons with a prescribed temporal shape, in the presence of interfering noise, may be hidden and recovered.

Dressed-state resonant coupling between bright and dark spins in diamond.

Physical review letters

Belthangady C, Bar-Gill N, Pham LM, Arai K, Le Sage D, Cappellaro P, Walsworth RL.
PMID: 25167312
Phys Rev Lett. 2013 Apr 12;110(15):157601. doi: 10.1103/PhysRevLett.110.157601. Epub 2013 Apr 12.

Under ambient conditions, spin impurities in solid-state systems are found in thermally mixed states and are optically "dark"; i.e., the spin states cannot be optically controlled. Nitrogen-vacancy (NV) centers in diamond are an exception in that the electronic spin...

Fourier magnetic imaging with nanoscale resolution and compressed sensing speed-up using electronic spins in diamond.

Nature nanotechnology

Arai K, Belthangady C, Zhang H, Bar-Gill N, DeVience SJ, Cappellaro P, Yacoby A, Walsworth RL.
PMID: 26258549
Nat Nanotechnol. 2015 Oct;10(10):859-64. doi: 10.1038/nnano.2015.171. Epub 2015 Aug 10.

Optically detected magnetic resonance using nitrogen-vacancy (NV) colour centres in diamond is a leading modality for nanoscale magnetic field imaging, as it provides single electron spin sensitivity, three-dimensional resolution better than 1 nm (ref. 5) and applicability to a...

Geometric phase magnetometry using a solid-state spin.

Nature communications

Arai K, Lee J, Belthangady C, Glenn DR, Zhang H, Walsworth RL.
PMID: 30479339
Nat Commun. 2018 Nov 27;9(1):4996. doi: 10.1038/s41467-018-07489-z.

A key challenge of magnetometry lies in the simultaneous optimization of magnetic field sensitivity and maximum field range. In interferometry-based magnetometry, a quantum two-level system acquires a dynamic phase in response to an applied magnetic field. However, due to...

Observation of optical precursors at the biphoton level.

Optics letters

Du S, Belthangady C, Kolchin P, Yin GY, Harris SE.
PMID: 18794960
Opt Lett. 2008 Sep 15;33(18):2149-51. doi: 10.1364/ol.33.002149.

We describe the observation of a sharp leading-edge spike in a biphoton wave packet that is produced using slow light and measured by two-photon correlation. Using the stationary-phase approximation we characterize this spike as a Sommerfeld-Brillouin precursor resulting from...

From the Hippocratic oath to the stone center: how to deal with stone disease.

Minerva urology and nephrology

Esperto F, Pietropaolo A, Emiliani E, DE Conninck V, Tailly T, Keller EX, Talso M, Tonyali S, Sener ET, Zeeshan Hameed BM, Usai P, DI Paola V, Papalia R, Scarpa RM.
PMID: 34847649
Minerva Urol Nephrol. 2021 Oct;73(5):561-563. doi: 10.23736/S2724-6051.21.04722-4.

No abstract available.

Electro-optic modulation of single photons.

Physical review letters

Kolchin P, Belthangady C, Du S, Yin GY, Harris SE.
PMID: 18851214
Phys Rev Lett. 2008 Sep 05;101(10):103601. doi: 10.1103/PhysRevLett.101.103601. Epub 2008 Sep 03.

We use the Stokes photon of a biphoton pair to set the time origin for electro-optic modulation of the wave function of the anti-Stokes photon thereby allowing arbitrary phase and amplitude modulation. We demonstrate conditional single-photon wave functions composed...

Showing 1 to 11 of 11 entries