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| 1 | Dielectric metasurfaces for complete and independent control of the optical amplitude and phase显示文摘Metasurfaces are optically thin metamaterials that promise complete control of the wavefront of light but are primarily used to control only the phase of light.Here,we present an approach,simple in concept and in practice,that uses meta-atoms with a varying degree of form birefringence and rotation angles to create high-efficiency dielectric metasurfaces that control both the optical amplitude and phase at one or two frequencies.This opens up applications in computer-generated holography,allowing faithful reproduction of both the phase and amplitude of a target holographic scene without the iterative algorithms required in phase-only holography.We demonstrate all-dielectric metasurface holograms with independent and complete control of the amplitude and phase at up to two optical frequencies simultaneously to generate two-and three-dimensional holographic objects.We show that phaseamplitude metasurfaces enable a few features not attainable in phase-only holography;these include creating artifactfree two-dimensional holographic images,encoding phase and amplitude profiles separately at the object plane,encoding intensity profiles at the metasurface and object planes separately,and controlling the surface textures of three-dimensional holographic objects. | Adam C.Overvig Sajan Shrestha Stephanie C.Malek Ming Lu Aaron Stein Changxi Zheng Nanfang Yu | 2019 | Light(Science & Applications)2019，8，1： | 27 |
| 2 | TiO2 nanosheets with exposed {001} facets for photocatalytic applications显示文摘TiO 2 nanosheets 与高度反应 { 001 } 方面({ 001 } 因为他们的唯一的性质, -TiO2) 在科技的地里吸引了大注意。在最近的年里,许多努力被作了综合 { 001 }-TiO2 并且在光催化探索他们的应用。在这评论,我们在准备总结最近的进步 { 001 } 用不同技术例如的 -TiO2 热水, solvothermal, alcohothermal,化学蒸汽免职(CVD ) ,和大音阶的第五音基于胶化的技术。而且,提高的效率 { 001 } 由碳材料,转变金属的表面免职,和做的非金属的修正的 -TiO2 被考察。然后,应用 { 001 } 在器官的染料的降级的 -TiO2-based 光催化剂,氢进化,二氧化碳(公司 2) 减小,细菌的消毒,和敏化染料的太阳能电池被总结。我们相信这 TiO 2 nanosheets 与上的全部评论 { 001 } 方面能进一步在联系的地里鼓舞研究人员。 | Chimmikuttanda Ponnappa Sajan Swelm Wageh Ahmed. A. Al-Ghamdi Jiaguo Yu Shaowen Cao | 2016 | Nano Research2016，9，1： | 19 |
| 3 | Broadband achromatic dielectric metalenses显示文摘Metasurfaces offer a unique platform to precisely control optical wavefronts and enable the realization of flat lenses,or metalenses,which have the potential to substantially reduce the size and complexity of imaging systems and to realize new imaging modalities.However,it is a major challenge to create achromatic metalenses that produce a single focal length over a broad wavelength range because of the difficulty in simultaneously engineering phase profiles at distinct wavelengths on a single metasurface.For practical applications,there is a further challenge to create broadband achromatic metalenses that work in the transmission mode for incident light waves with any arbitrary polarization state.We developed a design methodology and created libraries of meta-units—building blocks of metasurfaces—with complex cross-sectional geometries to provide diverse phase dispersions(phase as a function of wavelength),which is crucial for creating broadband achromatic metalenses.We elucidated the fundamental limitations of achromatic metalens performance by deriving mathematical equations that govern the tradeoffs between phase dispersion and achievable lens parameters,including the lens diameter,numerical aperture(NA),and bandwidth of achromatic operation.We experimentally demonstrated several dielectric achromatic metalenses reaching the fundamental limitations.These metalenses work in the transmission mode with polarization-independent focusing efficiencies up to 50%and continuously provide a near-constant focal length over λ=1200–1650 nm.These unprecedented properties represent a major advance compared to the state of the art and a major step toward practical implementations of metalenses. | Sajan Shrestha Adam C.Overvig Ming Lu Aaron Stein Nanfang Yu | 2018 | Light(Science & Applications)2018，7，1： | 13 |
| 4 | Insulin- sensitive protein kinases (atypical protein kinase C and protein kinase B/Akt ): actions and defects in obesity and type II diabetes显示文摘 | Farese RV1 Sajan MP Standaert ML | 2005 | Exp Biol Med (Maywood)2005，230，： | 1 |
| 5 | Apoptotic gene expression in Alzheimer's disease hippocampal tissue显示文摘 | SAJAN FD MARTINIUK F MARCUS DL | 2007 | Am J Alzheimers Dis Other Demen2007，22，4： | 1 |
| 6 | AICAR and metformin, but not exercise, increase muscle glucose transport through AMPK-, ERK- and PDKl-dependent activation of atypical PKC显示文摘 | Sajan MP Bandyopadhyay G Miura A | 2010 | Am J Physiol Endocrinol Metab2010，298，2： | 1 |
| 7 | Insulin sig- nalling in hepatocytes of humans with type 2 diabetes: excessive production and activity of protein kinase C-L ( PKC-L ) and dependent processes and reversal by PKC-γ inhibitors 显示文摘 | Sajan MP Farese RV | 2012 | Diabetologia2012，55，5： | 1 |
| 8 | Insulin-sensitive protein kinases (Atypical protein kinase C and protein kinase B/ Akt) :Actions and defects in obesity and type Ⅱ diabetes显示文摘 | Farese R V Sajan M P Standaert M L | 2005 | Exp Biol Med2005，230，9： | 1 |
| 9 | High-dose Ibuprofen therapy for patent ductus arteriosus in extremely preterm neonates:do we have a final answer?显示文摘 | Sajan SS Mahajan V | 2012 | Clin Pharmacol Ther2012，92，5： | 1 |
| 10 | Lipoxygenase-mediated glutathione oxidation and superoxide generation显示文摘 | Roy P Sajan MP Kulkarni AP | 1995 | J Biochem Toxicol1995，10，2： | 1 |
| 11 | Inflammatory Bowel Disease Is Associated With an Increased Risk of Melanoma: A Systematic Review and Meta-Analysis显示文摘 | Siddharth Singh Sajan Jiv Singh Nagpal Mohammad H. Murad Siddhant Yadav Sunanda V. Kane Darrell S. Pardi Jayant A. Talwalkar Edward V. Loftus | 2013 | Clinical Gastroenterology and Hepatology2013，，： | 1 |
| 12 | Apoptotic gene expression in Alzheimer's disease hippocampal tissue显示文摘 | Sajan FD Mariniuk F Marcus DL at al | 2007 | Am J Alzheimer Dis Other Demen2007，22，4： | 1 |
| 13 | Rosiglitazone, insulin treatment, and fasting correct defective activation of protein kinase C-zeta/lambda by insulin in vastus lateralis muscles and adipocytes of dcabetic rats显示文摘 | Kanoh Y Bandyopadhyay G Sajan MP | 2001 | Endocrinology2001，142，4： | 1 |
| 14 | Atypical PKC: a target for treating insulin-resistant disorders of obesity, the metabolic syndrome and type 2 diabetes mellitus显示文摘 | Farese RV Lee MC Sajan MP | 2014 | Expert Opin Ther Targets2014，18，10： | 1 |
| 15 | Increased atypical PKC activity in endurance-trained human skeletal muscle显示文摘 | Nielsen JN Frosig C Sajan MP | 2003 | Biochem Biophys Res Commun2003，312，4： | 1 |
| 16 | Exercise improves phosphatidylinositol-3,4,5 -trisphosphate responsiveness of atypical protein kinase C and interacts with insulin signalling to peptide elongation in human skeletal muscle 显示文摘 | FRΦSIG C SAJAN M MAARBJERG SJ | 2007 | J Physiol2007，582，3： | 1 |
| 17 | Apoptotic gene expression in Alzheimer's disease hippocampal tissue显示文摘 | Sajan FD Martiniuk F Marcus DL | 2007 | Am J Alzheimers Dis Other Demen2007，22，4： | 1 |
| 18 | Dynamic photoelasticity using TDI imaging显示文摘 | Asundi A Sajan M R Liu Tong | 2002 | Optics and Lasers in Engineering2002，38，12： | 1 |
| 19 | Ice storm damage to easternOntario forests:1998-2001显示文摘 | HOPKIN A WILLIAMS T SAJAN R | 2003 | Forestry Chronicle2003，79，1： | 1 |
| 20 | Metforrmin improves a typical protein kinase C activation by insulin and phoshatidylinosito-3,4,5-(PO4)3 in musce of liabetic subjects显示文摘 | Luna V Cazowban L Sajan MP | 2006 | Diabetologia2006，49，2： | 1 |
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