Zobrazeno 1 - 10
of 204
pro vyhledávání: '"Chowdhury, Enam"'
Autor:
Kiani, Leily, Zhou, Tong, Bahk, Seung-Whan, Bromage, Jake, Bruhwiler, David, Campbell, E. Michael, Chang, Zenghu, Chowdhury, Enam, Downer, Michael, Du, Qiang, Esarey, Eric, Galvanauskas, Almantas, Galvin, Thomas, Hafner, Constantin, Hoffmann, Dieter, Joshi, Chan, Kanskar, Manoj, Lu, Wei, Menoni, Carmen, Messerly, Michael, Mirov, Sergey B., Palmer, Mark, Pogorelsky, Igor, Polyanskiy, Mikhail, Power, Erik, Reagan, Brendan, Rocca, Jorge, Rothenberg, Joshua, Schmidt, Bruno E., Sistrunk, Emily, Spinka, Thomas, Tochitsky, Sergei, Vafaei-Najafabadi, Navid, van Tilborg, Jeroen, Wilcox, Russell, Zuegel, Jonathan, Geddes, Cameron
Large scale laser facilities are needed to advance the energy frontier in high energy physics and accelerator physics. Laser plasma accelerators are core to advanced accelerator concepts aimed at reaching TeV electron electron colliders. In these fac
Externí odkaz:
http://arxiv.org/abs/2204.10774
Autor:
Smith, Joseph R., Orban, Chris, Rahman, Nashad, McHugh, Brendan, Oropeza, Ricky, Chowdhury, Enam A.
There are now more Particle-in-Cell (PIC) codes than ever before that researchers use to simulate intense laser-plasma interactions. To date, there have been relatively few direct comparisons of these codes in the literature, especially for relativis
Externí odkaz:
http://arxiv.org/abs/2103.17248
Autor:
Shcherbakov, Maxim R., Zhang, Haizhong, Tripepi, Michael, Sartorello, Giovanni, Talisa, Noah, AlShafey, Abdallah, Fan, Zhiyuan, Twardowski, Justin, Krivitsky, Leonid A., Kuznetsov, Arseniy I., Chowdhury, Enam, Shvets, Gennady
Publikováno v:
Nature Communications 12, 4185 (2021)
High harmonic generation (HHG) opens a window on the fundamental science of strong-field light-mater interaction and serves as a key building block for attosecond optics and metrology. Resonantly enhanced HHG from hot spots in nanostructures is an at
Externí odkaz:
http://arxiv.org/abs/2008.03619
Autor:
Smith, Joseph R., Orban, Chris, Morrison, John T., George, Kevin M., Ngirmang, Gregory K., Chowdhury, Enam A., Roquemore, W. Mel
The development of ultra-intense laser-based sources of high energy ions is an important goal, with a variety of potential applications. One of the barriers to achieving this goal is the need to maximize the conversion efficiency from laser energy to
Externí odkaz:
http://arxiv.org/abs/2005.07746
Autor:
Ngirmang, Gregory K., Morrison, John T., George, Kevin M., Smith, Joseph R., Frische, Kyle D., Orban, Chris, Chowdhury, Enam A., Roquemore, W. Mel
When a relativistic intensity laser interacts with the surface of a solid density target, suprathermal electron currents are subject to Weibel instability filamentation when propagating through the thermal population of the bulk target. We present ti
Externí odkaz:
http://arxiv.org/abs/1910.12940
Autor:
Werner, Kevin, Gruzdev, Vitaly, Talisa, Noah, Kafka, Kyle, Austin, Drake, Liebig, Carl M., Chowdhury, Enam
Publikováno v:
Sci Rep 9, 19993 (2019)
Although ultrafast laser materials processing has advanced at a breakneck pace over the last two decades, most applications have been developed with laser pulses at near-IR or visible wavelengths. Recent progress in mid-infrared (MIR) femtosecond las
Externí odkaz:
http://arxiv.org/abs/1910.07953
Autor:
Mueller, Sara M., Kim, Dongjoon, McMillan, Stephen R., Tjung, Steven J., Repicky, Jacob J., Gant, Stephen, Lang, Evan, Bergmann, Fedor, Werner, Kevin, Chowdhury, Enam, Asthagiri, Aravind, Flatte, Michael E., Gupta, Jay A.
We report scanning tunneling microscopy studies of individual adatoms deposited on an InSb(110) surface. The adatoms can be reproducibly dropped off from the STM tip by voltage pulses, and impact tunneling into the surface by up to ~100x. The spatial
Externí odkaz:
http://arxiv.org/abs/1909.04156
Autor:
Smith, Joseph R., Orban, Chris, Ngirmang, Gregory K., Morrison, John T., George, Kevin M., Chowdhury, Enam A., Roquemore, W. M.
We use particle-in-cell (PIC) simulations and simple analytic models to investigate the laser-plasma interaction known as ponderomotive steepening. When normally incident laser light reflects at the critical surface of a plasma, the resulting standin
Externí odkaz:
http://arxiv.org/abs/1905.00888
Autor:
Snyder, Joseph, Ji, Liangliang, George, Kevin M., Willis, Christopher, Cochran, Ginevra E., Daskalova, Rebecca, Handler, Abraham, Rubin, Trevor, Poole, Patrick L., Nasir, Derek, Zingale, Anthony, Chowdhury, Enam, Shen, Baifei, Schumacher, Douglass W.
We present an experimental demonstration of the efficient acceleration of electrons beyond 60 MeV using micro-channel plasma targets. We employed a high-contrast, 2.5 J, 32 fs short pulse laser interacting with a 5 \mu m inner diameter, 300 \mu m lon
Externí odkaz:
http://arxiv.org/abs/1901.00475
Autor:
Shcherbakov, Maxim R., Werner, Kevin, Fan, Zhiyuan, Talisa, Noah, Chowdhury, Enam, Shvets, Gennady
Time-dependent nonlinear media, such as rapidly generated plasmas produced via laser ionization of gases, can increase the energy of individual laser photons and generate tunable high-order harmonic pulses. This phenomenon, known as photon accelerati
Externí odkaz:
http://arxiv.org/abs/1710.06966