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Showing 1 to 12 of 68 entries
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Ion acceleration by collisionless shocks in high-intensity-laser-underdense-plasma interaction.

Physical review letters

Wei MS, Mangles SP, Najmudin Z, Walton B, Gopal A, Tatarakis M, Dangor AE, Clark EL, Evans RG, Fritzler S, Clarke RJ, Hernandez-Gomez C, Neely D, Mori W, Tzoufras M, Krushelnick K.
PMID: 15524892
Phys Rev Lett. 2004 Oct 08;93(15):155003. doi: 10.1103/PhysRevLett.93.155003. Epub 2004 Oct 07.

Ion acceleration by the interaction of an ultraintense short-pulse laser with an underdense-plasma has been studied at intensities up to 3 x 10(20) W/cm(2). Helium ions having a maximum energy of 13.2+/-1.0 MeV were measured at an angle of...

Emittance measurements of a laser-wakefield-accelerated electron beam.

Physical review letters

Fritzler S, Lefebvre E, Malka V, Burgy F, Dangor AE, Krushelnick K, Mangles SP, Najmudin Z, Rousseau JP, Walton B.
PMID: 15169242
Phys Rev Lett. 2004 Apr 23;92(16):165006. doi: 10.1103/PhysRevLett.92.165006. Epub 2004 Apr 23.

The transverse emittance of a relativistic electron beam generated by the interaction of a high-intensity laser with an underdense plasma has been measured with the "pepper-pot" method. For parameters pertaining to the forced laser wakefield regime, we have measured...

The generation of mono-energetic electron beams from ultrashort pulse laser-plasma interactions.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

Mangles SP, Krushelnick K, Najmudin Z, Wei MS, Walton B, Gopal A, Dangor AE, Fritzler S, Murphy CD, Thomas AG, Mori WB, Gallacher J, Jaroszynski D, Norreys PA, Viskup R.
PMID: 16483956
Philos Trans A Math Phys Eng Sci. 2006 Mar 15;364(1840):663-77. doi: 10.1098/rsta.2005.1730.

The physics of the interaction of high-intensity laser pulses with underdense plasma depends not only on the interaction intensity but also on the laser pulse length. We show experimentally that as intensities are increased beyond 10(20) W cm(-2) the...

Fabrication of fibers with high rare-earth concentrations for Faraday isolator applications.

Applied optics

Ballato J, Snitzer E.
PMID: 21060544
Appl Opt. 1995 Oct 20;34(30):6848-54. doi: 10.1364/AO.34.006848.

The Faraday effect provides a mechanism for achieving unidirectional light propagation in optical isolators; however, miniaturization requires large Verdet constants. High rare-earth content glasses produce suitably large Verdet values, but intrinsic fabrication problems remain. The novel powder-intube method, or...

Plasma ion evolution in the wake of a high-intensity ultrashort laser pulse.

Physical review letters

Borghesi M, Bulanov SV, Esirkepov TZh, Fritzler S, Kar S, Liseikina TV, Malka V, Pegoraro F, Romagnani L, Rousseau JP, Schiavi A, Willi O, Zayats AV.
PMID: 16090181
Phys Rev Lett. 2005 May 20;94(19):195003. doi: 10.1103/PhysRevLett.94.195003. Epub 2005 May 17.

Experimental investigations of the late-time ion structures formed in the wake of an ultrashort, intense laser pulse propagating in a tenuous plasma have been performed using the proton imaging technique. The pattern found in the wake of the laser...

Association of plasma nitrite levels with obesity and metabolic syndrome in the Old Order Amish.

Obesity science & practice

Akram F, Fuchs D, Daue M, Nijjar G, Ryan A, Benros ME, Okusaga O, Baca-Garcia E, Brenner LA, Lowry CA, Ryan KA, Pavlovich M, Mitchell BD, Snitker S, Postolache TT.
PMID: 30338117
Obes Sci Pract. 2018 Aug 01;4(5):468-476. doi: 10.1002/osp4.290. eCollection 2018 Oct.

OBJECTIVES: Plasma nitrite is a metabolite of nitric oxide and reflects endogenous nitric oxide synthase (NOS) activity. Although plasma nitrites were previously linked with obesity and metabolic syndrome (MetS), the direction of association remains inconsistent, possibly due to sample...

What can be inferred from moiré patterns? A case study of trimesic acid monolayers on graphite.

Faraday discussions

Spitzer S, Helmle O, Ochs O, Horsley J, Martsinovich N, Heckl WM, Lackinger M.
PMID: 28776616
Faraday Discuss. 2017 Oct 26;204:331-348. doi: 10.1039/c7fd00113d.

Self-assembly of benzene-1,3,5-tricarboxylic acid (trimesic acid - TMA) monolayers at the alkanoic acid-graphite interface is revisited. Even though this archetypal model system for hydrogen bonded porous networks is particularly well studied, the analysis of routinely observed superperiodic contrast modulations...

Pediatric T-cell prolymphocytic leukemia with an isolated 12(p13) deletion and aberrant CD117 expression.

Experimental hematology & oncology

Bellone M, Svensson AM, Zaslav AL, Spitzer S, Golightly M, Celiker M, Hu Y, Ma Y, Ahmed T.
PMID: 23211022
Exp Hematol Oncol. 2012 Apr 18;1(1):7. doi: 10.1186/2162-3619-1-7.

T-cell Prolymphocytic leukemia (T-PLL) is a rare post-thymic T-cell malignancy that follows an aggressive clinical course. The classical presentation includes an elevated white blood cell (WBC) count with anemia and thrombocytopenia, hepatosplenomegaly, and lymphadenopathy. T-PLL is a disease of...

SiO(2)-clad fibers with selectively volatilized soft-glass cores.

Optics letters

Snitzer E, Tumminelli R.
PMID: 19752959
Opt Lett. 1989 Jul 15;14(14):757-9. doi: 10.1364/ol.14.000757.

By using a thick-walled SiO(2) tube (25-mm outside diameter, 1-mm inside diameter), a soft-glass core containing Nd or Yb-Er has its alkali (and to a lesser extent its alkaline earth) components volatilized during drawing to give a good-quality laser...

Sol-gel synthesis of rare-earth-doped lanthanum halides for highly efficient 1.3-microm optical amplification.

Optics letters

Ballato J, Riman RE, Snitzer E.
PMID: 18185630
Opt Lett. 1997 May 15;22(10):691-3. doi: 10.1364/ol.22.000691.

Praseodymium- and dysprosium-doped lanthanum halide powders have been synthesized by a sol-gel-reactive-atmosphere approach. Emission at 1.3 microm from a sol-gel-derived material was observed for the first time to our knowledge. Measured lifetimes corresponded to radiative quantum efficiencies of approximately...

Childhood Obesity and Depression: Connection between these Growing Problems in Growing Children.

International journal of child health and human development : IJCHD

Reeves GM, Postolache TT, Snitker S.
PMID: 18941545
Int J Child Health Hum Dev. 2008 Aug;1(2):103-114.

Depression and obesity have been recognized as major public health issues in youths. Although they have traditionally been compartmentalized as separate physical and emotional health conditions, evidence suggests interactions and common pathways between them, implying that successful treatment should...

Theoretical description of fiber Bragg reflectors prepared by Fresnel diffraction images.

Applied optics

Prohaska JD, Snitzer E, Winthrop J.
PMID: 20935733
Appl Opt. 1994 Jun 20;33(18):3896-900. doi: 10.1364/AO.33.003896.

The theory of Fresnel diffraction images is applied to Bragg-grating formation in a germanium-doped silica fiber. Fresnel diffraction images arise from the near-field diffraction at a periodic mask. The diffraction images are calculated as a function of the propagation...

Showing 1 to 12 of 68 entries