Results 81 to 90 of about 154,423 (300)

Parasitic Stimulated Amplification in High-Peak-Power and Diode-Seeded Nanosecond Fiber Amplifiers

IEEE Photonics Journal, 2014
The broadband parasitic amplification in a diode-seeded nanosecond ytterbium-doped fiber laser amplifier system is numerically and experimentally investigated.
C. L. Chang, P. Y. Lai, Y. Y. Li, Y. P. Lai, C. W. Huang, S. H. Chen, Y. W. Lee, S. L. Huang   +7 more
doaj   +1 more source

Efficient magneto-optical trapping of a metastable helium gas [PDF]

, 2001
This article presents a new experiment aiming at BEC of metastable helium atoms. It describes the design of a high flux discharge source of atoms and a robust laser system using a DBR diode coupled with a high power Yb doped fiber amplifier for ...
A. Sinatra, Anderson, Beijerinck, Bradley, Browaeys, C. S. Unnikrishnan, Davis, Dunning, E. Rasel, Esslinger, F. Perales, F. Pereira Dos Santos, , F. S. Pavone, Fahey, Fried, J. Léonard, J. Wang, Kumakura, Kurtsiefer, Lu, M. Leduc, Mewes, Minardi, Nowak, Paschotta, Pavone, Philips, Rasel, Rooijakkers, Rooijakkers, Saubaméa, Shlyapnikov, Tol, Vansteenkiste, Venturi   +34 more
core   +4 more sources

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Injection seeded, diode pumped regenerative ring Nd:YAG amplifier for spaceborne laser ranging technology development [PDF]

A small, all solid state, regenerative ring amplifier designed as a prototype for space application is discussed. Novel features include dual side pumping of the Nd:YAG crystal and a triangular ring cavity design which minimizes the number of optical ...
Coyle, D. Barry, Degnan, John J., Kay, Richard B., Krebs, Danny J., Seery, Bernard D.   +4 more
core   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source

Programmable DNA‐Peptide Hybrid Nanostructures for Potent Neutralization of Multiple Influenza a Virus Subtypes

Advanced Functional Materials, EarlyView.
A multivalent antiviral platform based on honeycomb‐shaped DNA nanostructures (HC–Urumin) is developed to enhance the potency and breadth of the host defense peptide Urumin. Through spatially patterned trimeric presentation, HC–Urumin disrupts influenza A virus entry, improves cell viability, and reduces disease severity in vivo‐offering a modular and ...
Saurabh Umrao, Abhisek Dwivedy, Payton L. Haak, Dhanush Gandavadi, Laurie A. Rund, Chi Chen, Vineetha Mareddy, Lifeng Zhou, Jinwei Duan, Ying Fang, Andrew J. Steelman, Xing Wang   +11 more
wiley   +1 more source

THM KIZILÖTESİ SEL YÜKSELTEÇ MODUNUN FİZİBİLİTE ÇALIŞMASI

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2010
Özet: Türk Hızlandırıcı Merkezi (THM) Kızılötesi Serbest Elektron Lazeri (Kö-SEL) Osilatör modda işletilmek üzere tasarlanmıştır. Osilatör Modunda (O modu) SEL, salındırıcı magnetle optik kavitede ışığı doyuma ulaştırana kadar karşılıklı ayna sistemleri ...
Hüsnü AKSAKAL, Ünsoy KOCAÖZ
doaj  

Oral Dosed Organo‐Silica Nanoparticles Restore Glucose Homeostasis and β‐Cell Function in Diabetes Rats

Advanced Functional Materials, EarlyView.
An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu, Mingli Wei, Che Bian, Xiaoshuang Bi, Yaxin Deng, Peifu Xiao, Jiansong Zhao, Yuying Wang, Haibing He, Jingxin Gou, Tian Yin, Xing Tang, Li Yang, Hongbo Zhang, Yu Zhang   +14 more
wiley   +1 more source

The Effect of Cooling Layer Thickness and Coolant Velocity on Crystal Thermodynamic Properties in a Laser Amplifier. [PDF]

Micromachines (Basel), 2023
Nie S, Zhao T, Liu X, Qu P, Yang Y, Wang Y.   +5 more
europepmc   +1 more source

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source