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| 1 | Strongly enhanced light trapping in a two-dimensional silicon nanowire random fractal array显示文摘We report on the unconventional optical properties exhibited by a two-dimensional array of thin Si nanowires arranged in a random fractal geometry and fabricated using an inexpensive,fast and maskless process compatible with Si technology.The structure allows for a high light-trapping efficiency across the entire visible range,attaining total reflectance values as low as 0.1%when the wavelength in the medium matches the length scale of maximum heterogeneity in the system.We show that the random fractal structure of our nanowire array is responsible for a strong in-plane multiple scattering,which is related to the material refractive index fluctuations and leads to a greatly enhanced Raman scattering and a bright photoluminescence.These strong emissions are correlated on all length scales according to the refractive index fluctuations.The relevance and the perspectives of the reported results are discussed as promising for Si-based photovoltaic and photonic applications. | Barbara Fazio Pietro Artoni Maria Antonia Iatì Cristiano D’Andrea Maria JosèLo Faro Salvatore Del Sorbo Stefano Pirotta Pietro Giuseppe Gucciardi Paolo Musumeci Cirino Salvatore Vasi Rosalba Saija Matteo Galli Francesco Priolo Alessia Irrera | 2016 | Light(Science & Applications)2016，5，1： | 4 |
| 2 | Radiation damping optical enhancement in cold atoms显示文摘The typically tiny effect of radiation damping on a moving body can be amplified to a favorable extent by exploiting the sharp reflectivity slope at one edge of an optically induced stop-band in atoms loaded into an optical lattice.In this paper,this phenomenon is demonstrated for the periodically trapped and coherently driven cold 87Rb atoms,where radiation damping might be much larger than that anticipated in previous proposals and become comparable with radiation pressure.Such an enhancement could be observed even at speeds of only a few meters per second with less than 1.0%absorption,making radiation damping experimentally accessible. | Jin-Hui Wu SAR Horsley M Artoni GC La Rocca | 2013 | Light(Science & Applications)2013，2，1： | 3 |
| 3 | Metabolic surgery and intestinal gene expression:Digestive tract and diabetes evolution considerations显示文摘AIM: To investigate the effects of bariatric surgery on metabolic parameters, incretin hormone secretion, and duodenal and ileal mucosal gene expression.METHODS: Nine patients with type 2 diabetes mellitus(T2DM), chronic serum hyperglycemia for more than2 years, and a body mass index(BMI) of 30-35 kg/m2 underwent metabolic surgery sleeve gastrectomy with transit bipartition between May 2011 and December2011. Blood samples were collected pre and 3, 6 and12 mo postsurgery. Duodenal and ileal mucosa samples were collected pre- and 3 mo postsurgery. Pre- and postoperative blood samples were collected in the fasting state before ingestion of a standard meal(520kcal) and again 30, 60, 90, and 120 min after the mealto determine hemoglobin A1c(HbA1c) levels and the lipid profile, which consisted of triglyceride and total cholesterol levels. Intestinal gene expression of p53 and transforming growth factor(TGF)-β was analyzed using quantitative reverse-transcription PCR. Gastric inhibitory polypeptide(GIP) and glucagon-like peptide-1(GLP-1)were quantified using the enzyme-linked immunoassay method and analyzed pre- and postoperatively.Student's t test or repeated measurements analysis of variance with Bonferroni corrections were performed as appropriate.RESULTS: BMI values decreased by 15.7% within the initial 3 mo after surgery(31.29 ± 0.73 vs 26.398± 0.68, P < 0.05) and then stabilized at 22% at 6mo postoperative, resulting in similar values 12 mo postoperatively(20-25 kg/m2). All of the patients experienced improved T2 DM, with 7 patients(78%)achieving complete remission(HbA1c < 6.5%), and 2patients(22%) achieving improved diabetes(HbA1c< 7.0% with or without the use of oral hypoglycemic agents). At 3 mo postoperatively, fasting plasma glucose had also decreased(59%)(269.55 ±18.24 mg/dL vs 100.77 ± 3.13 mg/dL, P < 0.05)with no further significant changes at 6 or 12 mo postoperatively. In the first month postoperatively,there was a complete withdrawal of hypoglycemic medications in all patients, who were taking at least2 hypoglycemic drugs preoperatively. GLP-1 levels significantly increased after surgery(149.96 ± 31.25 vs220.23 ± 27.55)(P < 0.05), while GIP levels decreased but not significantly. p53 gene expression significantly increased in the duodenal mucosa(P < 0.05, 2.06 fold)whereas the tumor growth factor-β gene expression significantly increased(P < 0.05, 2.52 fold) in the ileal mucosa after surgery.CONCLUSION: Metabolic surgery ameliorated diabetes in all of the patients, accompanied by increased antiproliferative intestinal gene expression in non-excluded segments of the intestine. | Marcos Ricardo da Silva Rodrigues Marco Aurelio Santo Giovani Marino Favero Elaine Cristina Vieira Roberto Ferreira Artoni Viviane Nogaroto Egberto Gaspar de Moura Patricia Lisboa Fabio Quirillo Milleo | 2015 | World Journal of Gastroenterology2015，21，22： | 2 |
| 4 | Quantum theory of optical pulse propagation through an absorbing and dispersive slab显示文摘 | Artoni M Loudon R | 1997 | Phys Rev1997，55，2： | 1 |
| 5 | Polarization qubit phase gate in driven atomic media显示文摘 | Ottaviani C Vitali d Artoni M | 2003 | Phys Rev Lett2003，90，： | 1 |
| 6 | Controlling the photon- ic band structure of optically driven cold atoms显示文摘 | Wu J H Artoni M La Rocca G C | 2008 | J Opt Soc Am B2008，25，： | 1 |
| 7 | Optically Tunable Photonic Stop Bands in Homogeneous Absorbing Media 显示文摘 | Artoni M La Rocca G C | 2002 | Phys Rev Lett2002，96，07： | 1 |
| 8 | Risk factors for idiopathic sudden sensorineural hearing loss and their association with clinical outcome显示文摘 | Serena M. Passamonti Federica Di Berardino Paolo Bucciarelli Valentina Berto Andrea Artoni Francesca Gianniello Umberto Ambrosetti Antonio Cesarani Emanuela Pappalardo Ida Martinelli | 2015 | Thrombosis Research2015，，3： | 1 |
| 9 | Optically tunable photonic stop bands in homogeneous absorbing media显示文摘 | Artoni M LA Rocca G C | 2006 | Phys Rev Lett2006，96，： | 1 |
| 10 | Controlled light-pulse propagation in driven color centers in diamond显示文摘 | WU J H LAROCCA G C ARTONI M | | 0，，： | 1 |
| 11 | La Rocca, Opti- cal non-reciprocity of cold atom Bragg mirrors in motion 显示文摘 | Horsley S A R Wu J H Artoni M | 2013 | Phys Rev Lett2013，110，： | 1 |
| 12 | Seep-carbonates in a thrust-related anticline at the leading edge of an orogenic wedge:The case of the middle-late Miocene Salsomaggiore Ridge (Northern Apennines,Italy)显示文摘 | Conti S Artoni A Piola G | 2007 | Sedimentary Geology2007，199，34： | 1 |
| 13 | Quantum theory of optical pulse propagation through an absorbing and dispersive slab 显示文摘 | ARTONI M LOUDON R | 1997 | Phys Rev1997，55，2： | 1 |
| 14 | An ease-off based optimization of the loaded transmission error of hypoid gears 显示文摘 | A Artoni M Kolivand A Kahraman | 2010 | ASME: Journal of mechanical design2010，132，1： | 1 |
| 15 | Resonantly absorb- ing one-dimensional photonic crystals显示文摘 | Artoni M Lanbsprocca G C Bassani F | 2005 | Phys Rev E2005，72，： | 1 |
| 16 | Polarization Qubit Phase Gate in Driven Atomic Media 显示文摘 | OTTAVIANI CARLO VITALI DAVID ARTONI MAURIZIO | 2003 | Phys Rev Lett2003，90，19： | 1 |
| 17 | All-optical light confinement in dynamic cavities in cold atoms显示文摘 | WU J H ARTONI M LAROCCA G C | | 0，，： | 1 |
| 18 | An uncommon condition for a sex chromosome system in Characcidae fish:Distribution and differentiation of the ZZ/ZW system in Tripportheus显示文摘 | Artoni R F Falcao J N Moreira-Filho O | 2001 | Chromosome Res2001，9，6： | 1 |
| 19 | Decay of stationary light pulses in uhracold atoms显示文摘 | WU j H ARTONI LAROCCA G C | | 0，，： | 1 |
| 20 | Propagation of nonclassical light through an absorbing and dispersive slab 显示文摘 | ARTONI M LOUDON R | 1999 | Phys Rev1999，59，3： | 1 |
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