Results 71 to 80 of about 63,998 (357)

High-power picosecond laser pulse recirculation [PDF]

Optics Letters, 2010
We demonstrate a nonlinear crystal-based short pulse recirculation cavity for trapping the second harmonic of an incident high-power laser pulse. This scheme aims to increase the efficiency and flux of Compton-scattering-based light sources. We demonstrate up to 40x average power enhancement of frequency-doubled submillijoule picosecond pulses, and 17x
Shverdin, M Y, Jovanovic, I, Semenov, V A, Betts, S M, Brown, C, Gibson, D J, Shuttlesworth, R M, Hartemann, F V, Siders, C W, Barty, C P   +9 more
openaire   +2 more sources

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

Advanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin, Jose M. Marin‐Beloqui, Juan T. López Navarrete, Juan Casado, Francisco Najera, Ezequiel Perez‐Inestrosa   +5 more
wiley   +1 more source

Theoretical Study of Ultra-Fast Laser Lift-Off of Carbon Nanotube-Integrated Polyimide Films

Nanomaterials
In this paper, ultra-fast laser lift-off (LLO) of carbon nanotube (CNT)-integrated polyimide film (PI) was investigated by different laser burst mode and pulse intervals using the two-temperature model. By comparing the temperature field distributions of
Run Bai, Yachong Xu, Junwei Fu, Zhenzhen Sun, Yanbo Wang, Rui Yang, Zijuan Han, Fanfan Wang, Boyuan Cai   +8 more
doaj   +1 more source

Picosecond high-repetition-rate pulsed laser ablation of dielectrics: the effect of energy accumulation between pulses [PDF]

, 2015
We report experiments on the ablation of arsenic trisulphide and silicon using high-repetition-rate (megahertz) trains of picosecond pulses. In the case of arsenic trisulphide, the average single pulse fluence at ablation threshold is found to be >100 ...
Gamaly, Eugene G, Luther-Davies, Barry, Madsen, Nathan, Rode, Andrei V   +3 more
core   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Lasers in tattoo and pigmentation control: role of the PicoSure® laser system

Medical Devices: Evidence and Research, 2016
Richard Torbeck,1 Richard Bankowski,2 Sarah Henize,3 Nazanin Saedi,11Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 2Cynosure, Inc, Westford, MA, 3Huron Consulting Group ...
Torbeck R, Bankowski R, Henize S, Saedi N   +3 more
doaj  

Towards coherent optical control of a single hole spin: rabi rotation of a trion conditional on the spin state of the hole [PDF]

, 2009
A hole spin is a potential solid-state q-bit, that may be more robust against nuclear spin induced dephasing than an electron spin. Here we propose and demonstrate the sequential preparation, control and detection of a single hole spin trapped on a self ...
A.F.A. Khatab, A.J. Ramsay, A.M. Fox, Akopian, Atature, Berezovsky, Besombes, Bonadeo, Borri, Boyle, Boyle, Economu, Ellis, Englund, Fischer, Flagg, Gerardot, Greilich, Greilich, H.-Y. Liu, Heidemeyer, Heiss, Heiss, Imamoglu, J. Skiba-Szymanska, J.B.B. Oliveira, Kamada, Kim, Kolodka, Kowalik, Krenner, Kroutvar, Laurent, M. Hopkinson, M.S. Skolnick, Mikkelsen, Nazir, Patton, Press, R.S. Kolodka, Ramsay, Rastelli, S.J. Boyle, Stevenson, Stevenson, Stievater, Stufler, Stufler, T.M. Godden, Takaghi, Wang, Weiner, Wu, Xu, Xu, Young, Zrenner   +56 more
core   +2 more sources

Functional Metal Complexes for Solar–Light‐Driven Energy Conversion

Advanced Materials, EarlyView.
This review provides an exhaustive summary of the recent advancements of functional metal complexes in solar‐to‐electrical, ‐chemical, and ‐thermal energy conversion, comprising material categories, design strategies, underlying principles of operation, and identified improvement of performances.
Yanyan Qin, Dou Luo, Miao Zhang, Wai‐Yeung Wong   +3 more
wiley   +1 more source

Crack Repair in Hydroxyapatite Bioceramics Using an Ultraviolet Ultrafast Laser

Advanced Materials Interfaces, EarlyView.
The study proposes an ultrafast ultraviolet laser approach to repair hidden tooth cracks, which has been preliminarily validated on HAP. Moreover, this technique aims to strengthen the native enamel structure rather than introducing a foreign filling material.
Yan Xue, Kai Zheng, Yang Liao, Jing Cao, Xupeng Yuan, Fusong Yuan, Yuxin Leng   +6 more
wiley   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source