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| 1 | High resolution multispectral spatial light modulators based on tunable Fabry-Perot nanocavities显示文摘Spatial light modulators(SLMs)are the most relevant technology for dynamic wavefront manipulation.They find diverse applications ranging from novel displays to optical and quantum communications.Among commercial SLMs for phase modulation,Liquid Crystal on Silicon(LCoS)offers the smallest pixel size and,thus,the most precise phase mapping and largest field of view(FOV).Further pixel miniaturization,however,is not possible in these devices due to inter-pixel cross-talks,which follow from the high driving voltages needed to modulate the thick liquid crystal(LC)cells that are necessary for full phase control.Newly introduced metasurface-based SLMs provide means for pixel miniaturization by modulating the phase via resonance tuning.These devices,however,are intrinsically monochromatic,limiting their use in applications requiring multi-wavelength operation.Here,we introduce a novel design allowing small pixel and multi-spectral operation.Based on LC-tunable Fabry-Perot nanocavities engineered to support multiple resonances across the visible range(including red,green and blue wavelengths),our design provides continuous 2π phase modulation with high reflectance at each of the operating wavelengths.Experimentally,we realize a device with 96 pixels(~1 μm pitch)that can be individually addressed by electrical biases.Using it,we first demonstrate multi-spectral programmable beam steering with FOV~18° and absolute efficiencies exceeding 40%.Then,we reprogram the device to achieve multi-spectral lensing with tunable focal distance and efficiencies~27%.Our design paves the way towards a new class of SLM for future applications in displays,optical computing and beyond. | Shampy Mansha Parikshit Moitra Xuewu Xu Tobias Wwmass Rasna Maruthiyodan Veetil Xinan Liang Shi-Qiang Li Ramon Paniagua-Dominguez Arseniy I.Kuznetsov | 2022 | Light(Science & Applications)2022，11，6： | 3 |
| 2 | Dynamic Fracture Toughness of Armour Grade Quenched and Tempered Steel Joints Fabricated Using Low Hydrogen Ferritic Fillers显示文摘The armour grade quenched and tempered steel joints fabricated using low hydrogen ferritic steel (LHF) filler exhibited superior joint efficiency owing to preferential ferrite microstructure in the welds and also they offered required resistance to HIC. However, the combat vehicles used in military operations will be required to operate under a wide range of road conditions ranging from first class to cross country. Structural components in combat vehicles are subjected to dynamic loading with high strain rates during operation. Stress loadings within the vehicle hull of these vehicles are expected to fluctuate considerably and structural cracking especially in welds during the service life of these vehicles can lead to catastrophic failures. Under these conditions, fracture behaviour of high strain rate sensitive structural steels can be better understood by dynamic fracture toughness (K1d). Hence, an attempt was made to study dynamic fracture toughness of the armour grade quenched and tempered steel and their welds fabricated using LHF consumables. The experimental results indicate that the K1d values of the joints fabricated by shielded metal arc welding (SMAW) are higher than those of the joints fabricated using flux cored arc welding (FCAW) process. | G Magudeeswaran V Balasubramanian S Sathyanarayanan G Madhusudhan Reddy A Moitra S Venugopal G Sasikala | 2010 | Journal of Iron and Steel Research(International)2010，17，5： | 2 |
| 3 | Web services and flexible business processes:towards the adaptive enterprise显示文摘 | Jai Ganesh | 2005 | information & management2005，42，： | 1 |
| 4 | Global Innovation Exchange显示文摘 | Deependra Moitra and Mohan Babu Krishnamoorthy | 2004 | Research Technology Management2004，47，4： | 1 |
| 5 | Content analysis of references: ad- junct or alternative to citation counting? 显示文摘 | CHUBIN D E MOITRA S D | 1975 | Social studies of sci- ence1975，5，4： | 1 |
| 6 | Microanatomy and eytochemistry of the gastro-respiratory tract of an air-breath- ing cobitidid fish, Lepidocephalichthys guntea 显示文摘 | MOITRA A SINGH O N MUNSHI J S D | 1989 | Japanese Journal of Ichthyology1989，36，2： | 1 |
| 7 | Indication for surgery,the revised cardiac risk index,and 1-year mortality显示文摘 | Moitra VK Flynn BC Mazzeffi M | 2011 | Ann Vasc Surg2011，25，： | 1 |
| 8 | Multidrug efflux pumps and cancer stem cells:Insights into muhidrugresistance and therapeutic devel- opment显示文摘 | Moitra K Lou H Dean M | 2011 | Clini Pharmacol Therap2011，89，： | 1 |
| 9 | Pharmacology of sedative-analgesic agent:dexmedetomidine,remifentanil,ketamine,volatile anesthetics,and the role of peripheral mu antagonists显示文摘 | Panzer O Moitra V Sladen R | 2009 | Crit Care Clin2009，25，21： | 1 |
| 10 | Web services a-nd flexible business process: Towards the adaptiveenterprise 显示文摘 | Deependra Moitra Jai Ganesh | 2005 | Information and Management2005，42，： | 1 |
| 11 | Effect of muscle energy tech- nique to improve flexibility of gastro-soleus complex in plan- tar fasciitis: a randomised clinical, prospective study design 显示文摘 | Tanwar R Moitra M Goyal M | 2014 | Indian Journal of Physiotherapy and Occupational Thera- py-An International Journal2014，8，4： | 1 |
| 12 | Polymyxin use associated with respiratory arrest显示文摘 | Wunseh H Moitra VK Patel M | 2012 | Chest2012，141，2： | 1 |
| 13 | Analysis of thermal and mechanical behavior of copper molds during continuous cast- ing of steel slabs 显示文摘 | Thomas B G Li G Moitra A | 1998 | Iron and Steelmaker1998，25，10： | 1 |
| 14 | Global perspectives of e- merging occupational and environmental lung diseases 显示文摘 | Moitra S Puri R Paul D | 2015 | Curr Opin Pulmo Med2015，21，2： | 1 |
| 15 | Investigation on sintering mechanism of nanoscale powder based on atomistic simulation显示文摘 | Moitra A Kim S Kim S G | 2010 | Acta Materialia2010，58，： | 1 |
| 16 | ( - ) Syringaresinol, a hepatoprotective agent and other constituents from Swertia chirata 显示文摘 | Ajit Kumar Chakravarty Sibabrata Mukhopadhyay Sankar Kumar Moitra | 1994 | India Indian J Chem Section B1994，33，4： | 1 |
| 17 | Pharmacology of seda- tive-analgesic agents : dexmedetomidine, remifentanil, ke- tamine, volatile anesthetics, and the role of peripheral Mu antagonists 显示文摘 | Panzer O Moitra V Sladen RN | 2011 | Anesthesiol Clin2011，29，4： | 1 |
| 18 | Microanatomy and cy- tochemistry of the gastro-respiratory tract of an air- breathing cobitidid fish Lepidocephalichthys guntea 显示文摘 | Moitra A Singh O N Munshi J S | 1989 | Japanese Journal of Ichthyology1989，36，2： | 1 |
| 19 | Innovation assessment through patent analysis 显示文摘 | BIJU PAUL ABRAHAM SOUMYO D MOITRA | 2001 | Technovation2001，，21： | 1 |
| 20 | Syringareinol,a hepatoprotectiVe agent and other constituents from Swertia chirata显示文摘 | Chakravarty A K Mukhopadhyay S Moitra S K | 1994 | Indian J Chem B1994，33，： | 1 |
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