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Showing 1 to 12 of 68 entries
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Electrical pulse fabrication of graphene nanopores in electrolyte solution.

Applied physics letters

Kuan AT, Lu B, Xie P, Szalay T, Golovchenko JA.
PMID: 26045626
Appl Phys Lett. 2015 May 18;106(20):203109. doi: 10.1063/1.4921620. Epub 2015 May 22.

Nanopores in graphene membranes can potentially offer unprecedented spatial resolution for single molecule sensing, but their fabrication has thus far been difficult, poorly scalable, and prone to contamination. We demonstrate an

Superheating and homogeneous single bubble nucleation in a solid-state nanopore.

Physical review letters

Nagashima G, Levine EV, Hoogerheide DP, Burns MM, Golovchenko JA.
PMID: 25062192
Phys Rev Lett. 2014 Jul 11;113(2):024506. doi: 10.1103/PhysRevLett.113.024506. Epub 2014 Jul 09.

We demonstrate extreme superheating and single bubble nucleation in an electrolyte solution within a nanopore in a thin silicon nitride membrane. The high temperatures are achieved by Joule heating from a highly focused ionic current induced to flow through...

Doppler broadening of in-flight positron annihilation radiation due to electron momentum.

Physical review letters

Hunt AW, Cassidy DB, Sterne PA, Cowan TE, Howell RH, Lynn KG, Golevchenko JA.
PMID: 11415314
Phys Rev Lett. 2001 Jun 11;86(24):5612-5. doi: 10.1103/PhysRevLett.86.5612.

We report the first observation of electron momentum contributions to the Doppler broadening of radiation produced by in-flight two-photon annihilation in solids. In these experiments an approximately 2.5 MeV positron beam impinged on thin polyethylene, aluminum, and gold targets....

Deflection and diffraction of x rays bound to curved surfaces.

Optics letters

Liu C, Golovchenko JA.
PMID: 18073791
Opt Lett. 1999 May 01;24(9):587-9. doi: 10.1364/ol.24.000587.

We present two new x-ray optical effects observed on a whispering-gallery waveguide. The first is a gradual in-surface deflection of guided waves caused by the non-Euclidean intrinsic curvature of the waveguide surface. The second is the excitation of in-surface...

Timing-jitter reduction for a dispersion-managed soliton system: experimental evidence.

Optics letters

Carter GM, Jacob JM, Menyuk CR, Golovchenko EA, Pilipetskii AN.
PMID: 18183251
Opt Lett. 1997 Apr 15;22(8):513-5. doi: 10.1364/ol.22.000513.

We have measured the timing jitter for dispersion-managed solitons in a recirculating loop for distances up to 20,000 km. The data were obtained with modulated data, 2(7) - 1 and 2(23) - 1 pseudorandom binary sequence patterns, at 10-Gbit/s...

Field ionization of cold atoms near the wall of a single carbon nanotube.

Physical review letters

Goodsell A, Ristroph T, Golovchenko JA, Hau LV.
PMID: 20481881
Phys Rev Lett. 2010 Apr 02;104(13):133002. doi: 10.1103/PhysRevLett.104.133002. Epub 2010 Mar 31.

We observe the capture and field ionization of individual atoms near the side wall of a single suspended nanotube. Extremely large cross sections for ionization from an atomic beam are observed at modest voltages due to the nanotube's small...

Periodic dispersion management in soliton wavelength-division multiplexing transmission with sliding filters.

Optics letters

Golovchenko EA, Pilipetskii AN, Menyuk CR.
PMID: 18185780
Opt Lett. 1997 Aug 01;22(15):1156-8. doi: 10.1364/ol.22.001156.

We compare the performance of dispersion-managed fibers with that of dispersion-decreasing fibers and of fibers with uniform dispersion in filtered soliton wavelength-division multiplexing transmission. Alternating-sign dispersion management allows us to achieve values of collision-induced timing jitter that are comparable...

Dispersion-managed soliton interactions in optical fibers.

Optics letters

Yu T, Golovchenko EA, Pilipetskii AN, Menyuk CR.
PMID: 18185664
Opt Lett. 1997 Jun 01;22(11):793-5. doi: 10.1364/ol.22.000793.

We simulated dispersion-managed soliton propagation and interaction in optical fibers. The energy-enhancement factor, together with the time-bandwidth product and the stretching factor, were calculated as a function of the difference in absolute values of accumulated dispersion in the fiber...

Tunable nanometer electrode gaps by MeV ion irradiation.

Applied physics letters

Cheang-Wong JC, Narumi K, Schürmann GM, Aziz MJ, Golovchenko JA.
PMID: 22550357
Appl Phys Lett. 2012 Apr 09;100(15):153108-1531083. doi: 10.1063/1.3702778. Epub 2012 Apr 11.

We report the use of MeV ion-irradiation-induced plastic deformation of amorphous materials to fabricate electrodes with nanometer-sized gaps. Plastic deformation of the amorphous metal Pd(80)Si(20) is induced by 4.64 MeV O(2+) ion irradiation, allowing the complete closing of a...

Thermal activation and saturation of ion beam sculpting.

Journal of applied physics

Hoogerheide DP, George HB, Golovchenko JA, Aziz MJ.
PMID: 21544213
J Appl Phys. 2011 Apr 01;109(7):74312-743124. doi: 10.1063/1.3569705. Epub 2011 Apr 07.

We report a material-dependent critical temperature for ion beam sculpting of nanopores in amorphous materials under keV ion irradiation. At temperatures below the critical temperature, irradiated pores open at a rate that soon saturates with decreasing temperature. At temperatures...

Normal displacements on a reconstructed silicon (111) surface: An x-ray-standing-wave study.

Physical review letters

Chadi DJ, Freeland PE, Golovchenko JA, Kortan AR, Patel JR, Qian GX.
PMID: 10033948
Phys Rev Lett. 1986 Dec 15;57(24):3077-3080. doi: 10.1103/PhysRevLett.57.3077.

No abstract available.

Direct measurement of crystal surface stress.

Physical review letters

Augustyniak WM, Golovchenko JA, Martinez RE.
PMID: 10042146
Phys Rev Lett. 1990 Feb 26;64(9):1035-1038. doi: 10.1103/PhysRevLett.64.1035.

No abstract available.

Showing 1 to 12 of 68 entries