Results 131 to 140 of about 2,049 (291)

Novel nanomaterial-based saturable absorbers for ultrashort-pulsed mid-infrared waveguide chip lasers

, 2016
Mode-locked integrated mid-IR waveguide chip lasers with ultra-short pulse duration and high peak power are of great interest for a large range of applications like trace-gas spectroscopy and early-cancer detection.
Jiang, X, H. Zhang, Withford, M. J, Fuerbach, A, S. Gross, F. Rotermund, Guo, Z, D. Yeom, Yeom, D, X. Jiang, Gross, S, Rotermund, F, A. Fuerbach, Z. Guo, Zhang, H, M. J. Withford   +15 more
core   +1 more source

Advancing Tandem Organic Solar Cells With Ternary Acceptor Control for High‐Power Modules and Solar‐to‐Ammonia Conversion

Advanced Functional Materials, EarlyView.
Tandem organic solar cells with optimized ternary acceptor engineering achieved a power conversion efficiency of 15.53% and enabled a high‐voltage mini‐module (Voc 6.11 V). Integration into a bias‐free PV‐EC system further demonstrated efficient solar‐to‐ammonia (STA) conversion (97% Faradaic Efficiency, 4± 2% STA efficiency), highlighting scalable ...
Seyeong Song, Ahmad Tayyebi, Meysam Tayebi, Jungwoo Heo, Jiwoo Yeop, Dohun Yuk, Na Gyeong An, Jaewon Lee, Gi‐Hwan Kim, Maria del Carmen Gimenez Lopez, Ji‐Wook Jang, Jin Young Kim   +11 more
wiley   +1 more source

Development of Dual-Comb Ultrafast Erbium Fiber Lasers Using Homemade Graphene-Based Saturable Absorbers

In this study, an ultrafast erbium laser was built using homemade 2-dimensional saturable absorbers. There are several components utilized in the laser’s setup, beginning with a 980nm pump, providing the system with up to 700mW of optical power and ...
Arduino, Nathan, Silvay, Matthew, Akosman, Ahmet E.   +2 more
core   +1 more source

Hybrid Solar Cell/Triboelectric Nanogenerator Based on Stable Two‐Dimensional Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero, Susana Ramos‐Terrón, Salvador R. G. Balestra, José M. Malagón, David Aparicio, Lucia Velasco, Asterios Charisiadis, Dooshaye Moonshiram, Margarita Darder, Pilar Aranda, Bernd Wicklein, Gustavo de Miguel, Javier Pérez‐Carvajal, Eva M. García‐Frutos   +13 more
wiley   +1 more source

Highly stable and repeatable femtosecond soliton pulse generation from saturable absorbers based on two-dimensional Cu_3-xP nanocrystals. [PDF]

Front Optoelectron, 2020
Mu H, Liu Z, Bao X, Wan Z, Liu G, Li X, Shao H, Xing G, Shabbir B, Li L, Sun T, Li S, Ma W, Bao Q.   +13 more
europepmc   +1 more source

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

Advanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko, Seongchan Kim, Jun‐Hyeok Han, Sanghee Lee, Minji Ahn, Hong En Fu, Young Jun Jang, Yoo Sang Jeon, Weiguo Li, Young Keun Kim, Dong‐Hyun Kim   +10 more
wiley   +1 more source

Properties of InGaAs quantum dot saturable absorbers in monolithic mode-locked lasers

, 2004
Saturable absorbers properties are characterised in monolithic mode-locked InGaAs quantum dot lasers. We analyse the impact of weak quantum confined Stark effect, fast absorber recovery time and low absorber saturation power on the mode-locking ...
Marinelli, C., White, I.H., Thompson, M.G., Birkedal, Dan, Bimberg, D., Poel, Mike van der, Hvam, Jørn Märcher, Chu, Y., Penty, R.V., Ustinov, V.M., Sellin, R.L., Lämmlin, M.   +11 more
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Spatially Decoupling Heating and Evaporation for Convection‐Enhanced 3D Solar Evaporation With Continuous Salt Harvesting

Advanced Functional Materials, EarlyView.
An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma, Yan Zhao, Yan Yan, Muhammad Amjad, Guice Yao, Hui Gao, Shudan Wei, Dongsheng Wen   +7 more
wiley   +1 more source

Atomized Oxidative Polymerization as a 3D Printing Platform for Binder‐Free, Bulk Conductive Polymer Architectures

Advanced Functional Materials, EarlyView.
Co‐delivery of electrosprayed EDOT and oxidant enables bulk oxidative polymerization during layer‐by‐layer fabrication, creating stable, highly conductive 3D PEDOT structures. This Atomized Oxidative Polymerization (AOP) overcomes the surface deposition‐only and matrix‐limited conductivity of conventional Vapor Phase Polymerization (VPP) and PEDOT:PSS ...
Tazdik Patwary Plateau, Hiep Pham, Jonghyun Park   +2 more
wiley   +1 more source

Materials for nonlinear optics : semicontinuous gold films and fast saturable absorbers

, 2012
Thesis (Ph. D.)--University of Rochester. Institute of Optics, 2008.In this thesis I have investigated two types of materials that have the potentiality, in different ways, to contribute to practical applications of nonlinear optics: semicontinuous gold ...
Boyd, Robert W. (1948 - ), Piredda, Giovanni (1970 - )   +1 more
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