Results 41 to 50 of about 36,563 (205)

Creating AlGaAs Photodetectors

Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology, 2015
AlGaAs/GaAs photodetectors operate at room temperature in the visible spectrum. Distinctive features of the photodetectors are: high absolute spectral sensitivity up to 0.112 A / W at μ max = 530–570 nm; photodiodes showed the low dark current of 4.7 nA and 530 nA, accordantly, at 5 V reverse bias.
M. Basalevskiy, S. Legotin, S. Didenko, O. Rabinovich   +3 more
openaire   +1 more source

InGaP/GaAs/InGaAs Multijunction Flexible Photovoltaics With Chemical Robustness and Radiation Hardness for Unassisted Electrocatalysis and Space Applications

Advanced Energy Materials, EarlyView.
A flexible InGaP/GaAs/InGaAs triple‐junction platform encapsulated with ultrathin glass enables unassisted electrocatalysis and space applications by providing robust protection against chemically aggressive and radiation‐rich environments. This work establishes a unified III–V multijunction photovoltaic platform that bridges space photovoltaics and ...
Sukkyu Hong, Seungwan Woo, Hoki Son, Hyun‐Beom Shin, Eungbeom Yeon, Jeongeun Mo, Daehwan Jung, Ho Won Jang, Ho Kwan Kang, Sung‐Min Lee, Won Jun Choi   +10 more
wiley   +1 more source

Interplay of χ(2) and χ(3) effects for microcomb generation

Journal of the European Optical Society-Rapid Publications
While frequency comb generation in passive nonlinear optical cavities has been demonstrated in purely quadratic and Kerr platforms, the interplay between χ(2) and χ(3) effects is yet to be fully understood.
Talenti Francesco Rinaldo, Lovisolo Luca, Gerini Andrea, Peng Huanfa, Parra-Rivas Pedro, Hansson Tobias, Sun Yifan, Alonso-Ramos Carlos, Morassi Martina, Lemaître Aristide, Harouri Abdelmounaim, Koos Christian, Wabnitz Stefan, Vivien Laurent, Leo Giuseppe   +14 more
doaj   +1 more source

Extending device performance in photonic devices using piezoelectric properties [PDF]

, 2013
This study focuses on the influence of epi-layer strain and piezoelectric effects in asymmetric GaInAs/GaAlAs action regions that potentially lead to intra-cavity frequency mixing. The theoretical limits for conduction and valence band offsets in lattice-
Triplett, Gregory Edward
core   +2 more sources

Effects from a single application of photobiomodulation on pain intensity from perineal trauma related to childbirth: A randomized controlled trial

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To analyze the effects of a single photobiomodulation (PBM) application on perineal pain and healing in women in the immediate postpartum period. Methods Randomized controlled trial, double‐blind, two‐center, with 60 postpartum women with perineal trauma and pain scoring 4 or more on the Numeric Rating Scale (NRS).
Edna Jéssica Lima Gondim, Simony Lira Nascimento, Maria Victória Candida Gaitero, Ticiana Aparecida Alves Mira, Andrea Vasconcelos Gonçalves, Fernanda Garanhani Surita   +5 more
wiley   +1 more source

Theoretical Study of Excitonic Complexes in GaAs/AlGaAs Quantum Dots Grown by Filling of Nanoholes

Advances in Condensed Matter Physics, 2021
In this work, a theoretical study of the electronic and the optical properties of a new family of strain-free GaAs/AlGaAs quantum dots (QDs) obtained by AlGaAs nanohole filling is presented.
Mohamed Omri, Amor Sayari, Larbi Sfaxi
doaj   +1 more source

Spectroscopy studies of straincompensated mid-infrared QCL active regions on misoriented substrates [PDF]

, 2014
In this work, we perform spectroscopic studies of AlGaAs/InGaAs quantum cascade laser structures that demonstrate frequency mixing using strain-compensated active regions.
Cheng, Emily, Grayer, Justin, Meyer, Charles, Roberts, Denzil, Triplett, Gregory Edward   +4 more
core   +1 more source

Metallic behavior and related phenomena in two dimensions

, 2000
For about twenty years, it has been the prevailing view that there can be no metallic state or metal-insulator transition in two dimensions in zero magnetic field.
Abrahams, E., Abrahams, E., Altshuler, B. L., Altshuler, B. L., Belitz, D., Belitz, D., Benenti, G., Bishop, D. J., Bishop, D. J., Brunthaler, G., Castellani, C., Castellani, C., Castellani, C., Ceperley, D. M., Chakravarty, S., Chakravarty, S., Chui, S. T., Coleridge, P. T., Das Sarma, S., Das Sarma, S., Denteneer, P. J. H., Dobrosavljević, V., Dolan, G. J., Dolgopolov, V. T., Dolgopolov, V. T., Dultz, S. C., Dultz, S. C., D’Iorio, M., Efros, A. L., Elihu Abrahams, Feng, X. G., Finkelstein, A. M., Glozman, I., Gold, A., Goldman, A. M., Hamilton, A. R., Hanein, Y., Hanein, Y., Hanein, Y., Hanein, Y., He, S., Heemskerk, R., Ilani, S., Jiang, H. W., Kelly, M. J., Khmelnitskii, D. E., Khondaker, S. I., Kirkpatrick, T. R., Kirkpatrick, T. R., Kivelson, S. A., Klapwijk, T. M., Kravchenko, S. V., Kravchenko, S. V., Kravchenko, S. V., Kravchenko, S. V., Kravchenko, S. V., Kravchenko, S. V., Kravchenko, S. V., Kravchenko, S. V., Lam, J., Laughlin, R. B., Leadbeater, M., Lee, P. A., Mason, W., Meir, Y., Mertes, K. M., Mertes, K. M., Mills, Jr., A. P., Myriam P. Sarachik, Okamoto, T., Papadakis, S. J., Papadakis, S. J., Papadakis, S. J., Phillips, P., Pikus, F. G., Popović, D., Pudalov, V. M., Pudalov, V. M., Pudalov, V. M., Pudalov, V. M., Pudalov, V. M., Pudalov, V. M., Pudalov, V. M., Pudalov, V. M., Ren, Y., Ribeiro, E., Sarachik, M. P., Sarachik, M. P., Senz, V., Senz, V., Sergey V. Kravchenko, Shahar, D., Shahar, D., Shashkin, A. A., Shashkin, A. A., Shashkin, A. A., Shepelyansky, D. L., Si, Q., Simmons, M. Y., Simmons, M. Y., Simonian, D., Simonian, D., Sondhi, S. L., Tanatar, B., Thakur, J. S., Uren, M. J., Vitkalov, S. A., Wei, H. P., Yaish, Y., Yazdani, A., Yoon, J., Yoon, J.   +111 more
core   +1 more source

Is the `Finite Bias Anomaly' in planar GaAs-Superconductor junctons caused by point-contact like structures? [PDF]

, 1999
We correlate transmission electron microscope (TEM) pictures of superconducting In contacts to an AlGaAs/GaAs heterojunction with differential conductance spectroscopy performed on the same heterojunction.
B.C. Crooker, Bagwell, Blonder, Braslau, Chaudhuri, Chen, D. McInturff, Gao, Gao, J.C.P. Chang, J.M. Woodall, Kastalsky, Lenssen, Lesovik, Liliental, M.R. Melloch, Magnee, Marmorkos, Marsh, Marsh, Marsh, Marsh, P.F. Bagwell, Poirier, Riedel, S. Chaudhuri, S. Paak, T.M. Pekarek, Taboryski, van Wees, Woodall   +30 more
core   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source