• Electronic excitation and atomic forces in optically excited group V semimetals 

  O'Mahony, Shane M. (University College Cork, 2020-09-02)

  The main focus of this work is to investigate how electronic excitation changes the forces between atoms in materials, causing large amplitude collective atomic motion, referred to as coherent phonon motion. The recent ...
• Quantum control of many-particle systems via shortcuts to adiabaticity 

  Dowdall, Tom (University College Cork, 2020-06-19)

  A major barrier for the development of new quantum technologies is fast and robust methods for preparing and manipulating complex quantum states. To date preparation and manipulation of quantum systems has primarily been ...
• Evolution of the magnetic field structure in the jet outflows from active galaxies 

  Knuettel, Sebastian (University College Cork, 2020-05)

  This thesis concerns studies into the magnetic fields in the jets from active galactic nuclei (AGN). Helical and toroidal magnetic fields are expected to exist in AGN jets close to the jet base and to assist in the launching ...
• Optical comb injection for optical demultiplexing and harmonic frequency locking 

  Shortiss, Kevin (University College Cork, 2020-04-17)

  With the continued growth of internet traffic, new optical communication infrastructures capable of dramatically increasing network bandwidth are being considered. Optical superchannels consisting of densely packed channels ...
• Laser-induced plasmas in air for pulsed broadband cavity-enhanced absorption spectroscopy 

  Keary, Bryan P. (2020-01-07)

  A pulsed laser-induced plasma (LIP) was generated in ambient air inside a high-finesse near-concentric optical cavity. The broadband optical plasma emission was successfully sustained within the cavity and the light leaking ...

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