| Autor: |
Paasch-Colberg, Tim, Kruchinin, Stanislav Yu., Sağlam, Özge, Kapser, Stefan, Cabrini, Stefano, Muehlbrandt, Sascha, Reichert, Joachim, Barth, Johannes V., Ernstorfer, Ralph, Kienberger, Reinhard, Yakovlev, Vladislav S., Karpowicz, Nicholas, Schiffrin, Agustin |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Optica 3(12), 1358-1361 (2016) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1364/OPTICA.3.001358 |
| Popis: |
Nonlinear interactions between ultrashort optical waveforms and solids can be used to induce and steer electric current on a femtosecond (fs) timescale, holding promise for electronic signal processing at PHz frequencies [Nature 493, 70 (2013)]. So far, this approach has been limited to insulators, requiring extremely strong peak electric fields and intensities. Here, we show all-optical generation and control of directly measurable electric current in a semiconductor relevant for high-speed and high-power (opto)electronics, gallium nitride (GaN), within an optical cycle and on a timescale shorter than 2 fs, at intensities at least an order of magnitude lower than those required for dielectrics. Our approach opens the door to PHz electronics and metrology, applicable to low-power (non-amplified) laser pulses, and may lead to future applications in semiconductor and photonic integrated circuit technologies. |
| Databáze: |
arXiv |
| Externí odkaz: |
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