Results 51 to 60 of about 23,614 (296)

Vertical-external-cavity surface-emitting lasers and quantum dot lasers

, 2012
The use of cavity to manipulate photon emission of quantum dots (QDs) has been opening unprecedented opportunities for realizing quantum functional nanophotonic devices and also quantum information devices.
A. A. Lagatsy, A. Garnache, A. J. Kemp, A. Lenz, A. Mutig, A. R. Albrecht, A. Rantamäki, A. Schliwa, A. Schliwa, A. Strittmatter, A. Strittmatter, B. Lita, B. S. Song, C. B. Murray, C. Ribbat, D. Bimberg, D. Guimard, D. Leonard, D. Lorenser, D. Ouyang, E. J. Saarinen, E. Kapon, F. Heinrichsdorff, F. Heinrichsdorff, G. Bester, G. C. Shan, G. C. Shan, G. Shan, H. Jiang, H. Kumano, H. Li, I. Kaminow, I. P. Marko, I. R. Sellers, J. Chilla, J. E. Hastie, J. E. Hastie, J. I. Cirac, J. Konttinen, J. M. Gerard, J. P. Reithmaier, J. Rautiainen, K. Hennessy, K. J. Vahala, L. A. Coldren, L. Fan, L. Fan, L. Fan, M. Asada, M. Fallahi, M. Kuznetsov, M. Nomura, M. Pelton, M. Pelton, M. V. Maximov, M. Yamaguchi, N. Kirstaedter, N. Kirstaedter, O. B. Shchekin, O. G. Okhotnikov, P. J. Yao, P. Lodahl, P. Michler, R. Diehl, R. Haring, R. L. Sellin, R. L. Sellin, S. A. Blokhin, S. Fathpour, S. Giet, S. Giet, S. Hilbich, S. Lutgen, S. S. Mikhrin, S. Strauf, S. Strauf, T. D. Germann, T. D. Germann, T. D. Germann, T. D. Germann, T. Vallaitis, T. Vallaitis, T. Yoshie, U. Keller, V. A. Fonoberov, W. J. Alford, X. H. Zhao, Y. He, Z. Xu   +88 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Room-Temperature Continuous-Wave Vertical-Cavity Single-Quantum-Well Microlaser Diodes [PDF]

, 1989
Room-temperature continuous and pulsed lasing of vertical-cavity, single-quantum-well, surface-emitting microlasers is achieved at ~983nm. The active Ga[sub][0-8]In[sub][0-2]As single quantum well is 100 [angstroms] thick.
Florez, L. T., Harbison, J. P., Jewell, J. L., Lee, Y. H., McCall, S. L., Scherer, A.   +5 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Stability of the nonlinear dynamics of an optically injected VCSEL [PDF]

, 2012
Automated protocols have been developed to characterize time series data in terms of stability. These techniques are applied to the output power time series of an optically injected vertical cavity surface emitting laser (VCSEL) subject to varying ...
A. Hurtado, Altes, Annovazzi-Lodi, Argyris, Bonatto, C. Nichkawde, Chrostowski, D. M. Kane, Eriksson, Eriksson, Fordell, Gatare, Gatare, Hurtado, Hurtado, Hurtado, I.D. Henning, J. P. Toomey, Jeong, K. Schires, Kane, Kane, Kelleher, Kovanis, Koyama, Krauskopf, Lau, Lawrence, M. J. Adams, Olejniczak, Pan, Park, Perez, Sacher, Schires, Schires, Sciamanna, Simpson, Simpson, Toomey, Toomey, Valling, Valling, Valling, Wieczorek, Wieczorek   +45 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Enhancement of InGaN Quantum Well Photoluminescence in a Tamm Metal/Porous-DBR Micro-Cavity

IEEE Photonics Journal, 2023
Vertical cavity surface emitting lasers (VCSEL) are of great interest for photonic and telecom applications, however challenges in fabrication of efficient VSCEL GaN devices are yet to be resolved.
Andrei Sarua, Jon Pugh, Edmund Harbord, Martin Cryan   +3 more
doaj   +1 more source

Polarization dynamics in vertical-cavity surface emitting lasers [PDF]

, 2005
Experiments and their interpretation on polarization dynamics and polarization switching in vertical-cavity surface-emitting lasers operated in the fundamental transverse mode regime are reviewed.
Ackemann, Thorsten, Sondermann, M.
core  

Nonlinear dynamics of vertical-cavity surface-emitting lasers [PDF]

, 1999
The dependence of the transient response of a vertical-cavity surface-emitting laser (VCSEL) on its aperture size is investigated subject to direct current modulation and external optical feedback.
Yu, SF
core   +1 more source

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

Advanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou, Jiongyi Yan, Dick F. Firdaus, Amy Jin, Jiaxuan Li, Shushan Wang, Ran Chen, Xudong Tao, Zehao Ji, Yi Liu, Zichen Wang, Christos Margadji, Mark Kotter, J. Axel Zeitler, George G. Malliaras, Ronan Daly, Andrew Gleadall, Sebastian W. Pattinson   +17 more
wiley   +1 more source