Results 71 to 80 of about 258,036 (301)

Power losses in optical part of the link working in free space [PDF]

, 2011
Tato diplomová práce pojednává o charakteristikách laserových diod, difrakcí a o vlastnostech gausovského svazku. Je určen útlum vazby vysílací dioda - vysílací apertura v závislosti na velikostech apertury a na velikosti svazku v programu MATLAB.
Szajkó, Juraj
core  

Diode Pumped Cesium Laser

2005 Quantum Electronics and Laser Science Conference, 2005
We demonstrate a continuous-wave diode laser pumped cesium vapor laser.
T. Ehrenreich, B. Zhdanov, T. Takekoshi, S.P. Phipps, R.J. Knize   +4 more
openaire   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

Advanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk, Dokyum Kim, Jun‐Cheol Park, Yoonsung Jung, Inhyeok Oh, Donghyeon Lee, Yejoon Kim, Ji‐Eun Yeo, Young Min Song, Chang‐Lyoul Lee, Sanghan Lee   +10 more
wiley   +1 more source

Outcomes of laser endoureterotomy using diode and holmium lasers in benign ureteral stricture management: a retrospective cohort study

African Journal of Urology
Background Our experience of endoureterotomy with diode (150 & 200 Watt) and holmium lasers. Methods A retrospective study involving 60 patients (39 male and 21 female) treated for benign ureteric strictures used either diode laser (29 patients) or ...
Farooq Hameed, Adeel Anwaar, Rao Nouman Ali, Rabia Shakoor, Inam Ul Haq, Syed Hassaan Kazmi, Abdul Basit, Abul Fazl Ali Khan   +7 more
doaj   +1 more source

Mode-hop-free tuning over 135 GHz of external cavity diode lasers without anti-reflection coating

, 2011
We report an external cavity diode laser (ECDL), using a diode whose front facet is not antireflection (AR) coated, that has a mode-hop-free (MHF) tuning range greater than 135 GHz.
A. Bösel, C. Petridis, C.E. Wieman, D. S. Elliott, E.A. Cornell, J. Hult, J. Shao, K. Liu, L. Hildebrandt, L. Nilse, L. Ricci, M. Labachelerie de, M.W. Fleming, R.J. Lang, R.S. Longhurst, S. Dutta, T. Führer, T. Führer, T. Hof, V.P. Gerginov, Y. P. Chen   +20 more
core   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Deterministic polarization chaos from a laser diode

, 2013
Fifty years after the invention of the laser diode and fourty years after the report of the butterfly effect - i.e. the unpredictability of deterministic chaos, it is said that a laser diode behaves like a damped nonlinear oscillator.
A Argyris, A Garfinkel, A Provenzale, A Scirè, A Uchida, A Wolf, AA Andronov, B Nagler, C Bracikowski, CO Weiss, D Rontani, DS Coffey, EN Lorenz, F Albert, F Hopfer, F Meier, FT Arecchi, GD VanWiggeren, GD VanWiggeren, H Haken, H Kawaguchi, H Poincaré, HDI Abarbanel, Hugo Thienpont, I Kanter, I Kanter, J Martin-Regalado, J Renaudier, JR Tredicce, K Fraedrich, K Kubodera, K Otsuka, Krassimir Panajotov, L Larger, L Olejniczak, LR Rabiner, M San Miguel, M Sciamanna, M Sondermann, Marc Sciamanna, Martin Virte, MB Willemsen, N Oliver, NC Gerhardt, P Grassberger, S Hovel, S Steingrube, SF Yu, SH Strogatz, T Adachi, T Mukai, T Yamada, T-Y Li, TB Simpson   +53 more
core   +3 more sources

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

Advanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng, Zhipeng Ma, Ming Zhang, Shujie Zhou, Varun Kundi, Priyank Vijaya Kumar, Wenyu Zhong, Yuwei Yang, Jitraporn Vongsvivut, Qinfen Gu, Xiaoxuan Luo, Lixue Jiang, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Electro‐Chemo‐Mechanical Coupling in Hf0.5Zr0.5O2 Ferroionic Heterostructures

Advanced Functional Materials, EarlyView.
Schematic of a ferroionic HZO heterostructure where epitaxial interfaces enable dynamic oxygen‐vacancy exchange, coupling ionic and ferroelectric degrees of freedom. Vacancy‐mediated polarization modulation biases HZO polymorphism, suppresses leakage, and enhances piezoelectric response, yielding distinct butterfly‐loop evolution and diode‐like ...
Achilles Bergne, Denis Alikin, Milica Vasiljevic, Victor B. Tinti, Javier Zamudio‐García, Leonardo Soares de Oliveira, Megan Landberg, Dimitrios Koukoulis, Huaiyu Chen, Jesper Wallentin, David Marrero‐López, Astri Bjørnetun Haugen, Sizhao Huang, Dennis Christensen, Nini Pryds, Alexander Tselev, Andrei Kholkin, Vincenzo Esposito   +17 more
wiley   +1 more source

Clinical Evaluation of Tissue Healing around Gingival Former Following Dental Implant Uncovery with two Different Diode Laser Wavelength

Frontiers in Biomedical Technologies
Purpose: It has been demonstrated that diode lasers can be an effective alternative in oral soft tissue surgeries. This study aimed to clinically evaluate the tissue healing around the gingival former of dental implants following the uncovery of areas ...
Maryam Abdolahzadeh, Saiedeh Sadeghi, Mohammad Ali Irani, Amir Yari, Kamal Attari, Seyed Sasan Aryanezhad, Salman Abolfazli Karizi   +6 more
doaj   +1 more source