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Wednesday, 25 November 2015

Dane: JC/DM: benzene HHG spectroscopy / HHG in aromatic systems

I will discuss progress in understanding our benzene HHG spectroscopy results, as well as some recent results from Ravi Bhardwaj's group on the similar topic of HHG in aromatic systems:
http://journals.aps.org/pra/abstract/10.1103/PhysRevA.92.041801

Tuesday, 17 November 2015

Emilio: JC: Chirality in HHG

Non-collinear circularly polarized high harmonic generation (NCP-HHG).

Non-collinear generation of angularly isolated circularly polarized high harmonics

Probing molecular chirality on a sub-femtosecond timescale
http://www.nature.com/nphys/journal/v11/n8/abs/nphys3369.html

A table-top ultrashort light source in the extreme ultraviolet for circular dichroism experiments

Tuesday, 10 November 2015

Tuesday, 3 November 2015

JC: Bernd: THz induced field emission from nanostructures


In the first part I will summarise how single-cycle THz pulses can be efficiently generated, and I will present corresponding detection schemes. Due to the low photon energies in the meV range, THz radiation is typically understood to be nonionising. However, several groups have recently demonstrated that field emission from nanostructures can be induced by intense THz fields (see e.g. Herink et al., NJP 16, 123005 (2014); Iwaszczuk et al., Optica 2, 116 (2015).). I will present some of these results and discuss the possibility to generate ultrashort electron bunches with very high kinetic energies.