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| 1 | Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface显示文摘Light beams with a helical phase-front possess orbital angular momentum along their direction of propagation in addition to the spin angular momentum that describes their polarisation.Until recently,it was thought that these two‘rotational’motions of light were largely independent and could not be coupled during light–matter interactions.However,it is now known that interactions with carefully designed complex media can result in spin-to-orbit coupling,where a change of the spin angular momentum will modify the orbital angular momentum and vice versa.In this work,we propose and demonstrate that the birefringence of plasmonic nanostructures can be wielded to transform circularly polarised light into light carrying orbital angular momentum.A device operating at visible wavelengths is designed from a space-variant array of subwavelength plasmonic nano-antennas.Experiment confirms that circularly polarised light transmitted through the device is imbued with orbital angular momentum of 62'(with conversion efficiency of at least 1%).This technology paves the way towards ultrathin orbital angular momentum generators that could be integrated into applications for spectroscopy,nanoscale sensing and classical or quantum communications using integrated photonic devices. | Ebrahim Karimi Sebastian A Schulz Israel De Leon Hammam Qassim Jeremy Upham Robert W Boyd | 2014 | Light(Science & Applications)2014，3，1： | 39 |
| 2 | Phase II Trial: Undifferentiated Versus Differentiated Autologous Mesenchymal Stem Cells Transplantation in Egyptian Patients with HCV Induced Liver Cirrhosis显示文摘 | Mervat El-Ansary Iman Abdel-Aziz Sherif Mogawer Samah Abdel-Hamid Olfat Hammam Salwa Teaema Marwa Wahdan | 2012 | Stem Cell Reviews and Reports2012，，3： | 4 |
| 3 | Conserving nitrogen during composting显示文摘 | Michael Raviv Shlomit Medina Arkady Krasnovsky Hammam Ziadna | 2002 | Biocycle2002，43，9： | 1 |
| 4 | Effect of bonemarrow-derived stem cells on injured liver of mice infected withschistosoma mansoni显示文摘 | El-Mahdi MM Mansour WA Hammam O | 2014 | Korean J Parasitol2014，52，2： | 1 |
| 5 | Distribution system modelling with distributed harmonic sources显示文摘 | Hiyama T Hammam M S AA Ortmeyer T H | 2007 | Power Engineering Review2007，9，4： | 1 |
| 6 | Tolvaptan, hyponatremia, and heart failure显示文摘 | Jalal Ghali Suleiman Daifallah Hammam Zmily | 2011 | International Journal of Nephrology and Renovascular Disease . 2011 (defa)2011，，： | 1 |
| 7 | Effect of ketoconazole, a cytochrome P450 inhibitor, on the efficacy of quinine and halofantrine against Schistosoma mansoni in mice显示文摘 | Seif El-Din SH Abdel-Aal Sabra AN Hammam OA | 2013 | Korean J Parasitol2013，51，2： | 1 |
| 8 | Diagnosticand prognostic role of galectin 3 expression in cutaneousmelanoma显示文摘 | Abdou AG Hammam MA Farargy SE | 2010 | Am J Dermatopathol2010，32，8： | 1 |
| 9 | Chemical evaluation of egyptian citrus seeds as potential sources of vegetable oils显示文摘 | HABIB M A HAMMAM M A SAKR A A | 1986 | Journal of the American Oil Chemists’ Society1986，63，9： | 1 |
| 10 | Direct actions of urotensin Iion the heart:implications for cardiac fibrosis and hypertrophy显示文摘 | Tzanidi SA Hammam RD Thomas WG | 2003 | Cire Res2003，93，3： | 1 |
| 11 | Distribution system modeling with distributed harmonic sources显示文摘 | Hammam M S A A Ortmeyer T H | 1989 | IEEE Transaction on Power Delivery1989，4，2： | 1 |
| 12 | Physical properties of butter oil fractions obtained by supercritical carbon dioxide extraction显示文摘 | Hammam H Soderberg I Sivik B | 1991 | Fat Science and Technology1991，10，： | 1 |
| 13 | Voltammetric studies on the antibiotic drug cefoperazone quantification and pharmacokinetic studies显示文摘 | HAMMAM E EL-ATTAR MA BELTAGI AM | 2006 | J Pharm Biomed Anal2006，42，4： | 1 |
| 14 | Effect of nitrification inhibitors (nitrapyrin) and nitrogen level on growth and yield of naize显示文摘 | Hammam G Y | 1995 | Annals of Agricultural science Moshtohor1995，33，2： | 1 |
| 15 | Adsorptive stripping voltammetrie quantification of the antipsyehotie drug elozapine in bulk form, pharmaceutical formulation and human serum at a mercury electrode 显示文摘 | Hammam E Tawfik A Ghoneim M M | 2004 | J Pharm Biomed Anal2004，36，1： | 1 |
| 16 | Voltammetric behavior and quantification of the anti-leukemia drug imatinib in bulk form, pharmaceutical formulation, and human serum at a mercury electrode 显示文摘 | Hammam E El-Desoky HS Tawfik A | 2004 | Can J Chem/Rev Can Chim2004，82，7： | 1 |
| 17 | The role of TGF-beta-1 protein and TGF-beta-R-1 receptor in immune escape mechanism in bladder cancer显示文摘 | Helmy A Hammam OA El Lithy TR | 2007 | Med Gen Med2007，9，4： | 1 |
| 18 | Mutant MMP -9 and HGF Gene Transfer Enhance Resolution of CC14 - Induced Liver Fi- brosis in Rats: Role of ASH1 and EZH2 Methyltransferases Repres- sion显示文摘 | Atta H E1 - Rehany M Hammam O | 2014 | PLoS 0ne2014，9，11： | 1 |
| 19 | The relation between toxoplasmosis and pityriasis lichenoides chronica显示文摘 | Nassef NE Hammam MA | 1997 | J Egypt Soc Parasitol1997，27，1： | 1 |
| 20 | Leukocyte involvement in vasomot or reactivity of the cerebray vasculature 显示文摘 | Hammam G F Zoppo G J | 1994 | Stroke1994，25，： | 1 |
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