Terahertz laser; single-cycle THz pulse; hard x-ray pulse characterization; carrier envelope phase control; ultrafast magnetization; catalytic reaction; optical rectification; organic crystal
Hack Erwin, Valzania Lorenzo, Gaeumann Gregory, Shalaby Mostafa, Hauri Christoph P., Zolliker Peter (2016), Comparison of Thermal Detector Arrays for Off-Axis THz Holography and Real-Time THz Imaging, in SENSORS
, 16(2), 1.
Shalaby Mostafa, Vicario Carlo, Thirupugalmani Karunanithi, Brahadeeswaran Srinivasan, Hauri Christoph P. (2016), Intense THz source based on BNA organic crystal pumped at Ti:sapphire wavelength, in OPTICS LETTERS
, 41(8), 1777-1780.
Shalaby Mostafa, Vicario Carlo, Hauri Christoph P. (2016), Low frequency terahertz-induced demagnetization in ferromagnetic nickel, in APPLIED PHYSICS LETTERS
, 108(18), 1.
Shalaby Mostafa, Vicario Carlo, Hauri Christoph P. (2016), Simultaneous electronic and the magnetic excitation of a ferromagnet by intense THz pulses, in NEW JOURNAL OF PHYSICS
, 18, 1.
Shalaby Mostafa, Hauri Christoph P. (2015), Air nonlinear dynamics initiated by ultra-intense lambda-cubic terahertz pulses, in APPLIED PHYSICS LETTERS
, 106(18), 1.
Shalaby Mostafa, Hauri Christoph P. (2015), Air Nonlinearity triggered by an ultra-intense sub-5 THz light bullet, in 2015 40TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)
Shalaby Mostafa, Hauri Christoph P. (2015), Demonstration of a low-frequency three-dimensional terahertz bullet with extreme brightness, in Nature Communications
, 6, 1.
Shalaby Mostafa, Hauri Christoph P. (2015), Extreme Terahertz brightness by focusing to a lambda-cubic volume, in 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
Shalaby Mostafa, Hauri Christoph P. (2015), Extreme Terahertz brightness by focusing to a lambda-cubic volume, in 2015 40TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)
Shalaby Mostafa, Vicario Carlo, Hauri Christoph P. (2015), High-performing nonlinear visualization of terahertz radiation on a silicon charge-coupled device, in NATURE COMMUNICATIONS
, 6, 1.
Shalaby Mostafa, Hauri Christoph P. (2015), Spectrally intense terahertz source based on triangular Selenium, in SCIENTIFIC REPORTS
, 5, 1.
Shalaby Mostafa, Peccianti Marco, Cooke David G., Hauri Christoph P., Morandotti Roberto (2015), Temporal and spectral shaping of broadband terahertz pulses in a photoexcited semiconductor, in APPLIED PHYSICS LETTERS
, 106(5), 1.
Shalaby Mostafa, Vicario Carlo, Hauri Christoph P. (2015), Terahertz light bullet-induced nonlinearity in a gold thin film, in 2015 40TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)
Shalaby Mostafa, Peccianti Marco, Ozturk Yavuz, Al-Naib Ibraheem, Hauri Christoph P., Morandotti Roberto (2014), Terahertz magnetic modulator based on magnetically clustered nanoparticles, in APPLIED PHYSICS LETTERS
, 105(15), 1.
A pulsed high-field Terahertz (THz) source with one single cycle or less is a novel tool for exploring nonlinear phenomena in solids, gases and on surfaces. The development of a high-peak power THz laser is motivated by the great potential for initiating ultrafast dynamics in various fields of research like ultrafast magnetisation, THz surface chemistry, high-order harmonic generation and Free Electron Laser physics. For many investigations THz could play a fundamental role and may answer open questions. For example, how fast can the magnetization vector be coherently controlled by an external pulsed magnetic field? Is it possible to trigger adsorption of a CO molecule on a surface by excitation of the stretch-bend mode? Could the efficiency of high-order harmonic generation be significantly improved by THz-assisted quasi-phase matching? Can we characterize few-femtosecond hard x-ray pulses from a Free Electron Laser with the THz streaking techniques and measure their arrival time at the experiment? For all such investigations a table-top high-field THz source in the so-called THz gap (0.1 to 15 THz) would be uttermost beneficial. The production of pulses at highest peak-fields (several MV/cm) in the THz gap has been challenging in the past. The goal of this proposal is to overcome the current limitation of state-of-the-art table-top THz sources, to push the technology further towards larger bandwith (1-15 THz) and higher fields and to perform cutting edge nonlinear THz experiments in solids and gas phase. The THz source developed within the frame of this project is going to be used to investigate the magnetic dynamics in ferromagnetic materials and others. Deeper insights into those phenomena could help to make next generation storage media much faster since we are aiming to coherent control the magnetization dynamics directly by the THz magnetic field rather than by conventional heating induced by an intense femtosecond laser pulse. Another application cover novel photon beam diagnostics for hard x-ray femtosecond lasers, like Free Electron Lasers (FELs) or table-top soft x-ray lasers, where the strong THz field is used as streaking field for photo-electrons to reconstruct the temporal pulse shape and arrival time. In fact, the pulse reconstruction of femtosecond hard x-ray pulses at the future Swiss Free Electron Laser and determination of its arrival time at the experiment is still a challenging problem which could be solved with a laser-based THz streak camera.