Picture of server farm and IT infrastructure

Where technology & law meet: Open Access research on data security & its regulation ...

Strathprints makes available Open Access scholarly outputs exploring both the technical aspects of computer security, but also the regulation of existing or emerging technologies. A research specialism of the Department of Computer & Information Sciences (CIS) is computer security. Researchers explore issues surrounding web intrusion detection techniques, malware characteristics, textual steganography and trusted systems. Digital forensics and cyber crime are also a focus.

Meanwhile, the School of Law and its Centre for Internet Law & Policy undertake studies on Internet governance. An important component of this work is consideration of privacy and data protection questions and the increasing focus on cybercrime and 'cyberterrorism'.

Explore the Open Access research by CIS on computer security or the School of Law's work on law, technology and regulation. Or explore all of Strathclyde's Open Access research...

Phase-space properties of magneto-optical traps utilising micro-fabricated gratings

McGilligan, J. P. and Griffin, P. F. and Riis, E. and Arnold, A. S. (2015) Phase-space properties of magneto-optical traps utilising micro-fabricated gratings. Optics Express, 23 (7). pp. 8948-8959. ISSN 1094-4087

[img]
Preview
Text (McGilligan-etal-OE-2015-Phase-space-properties-of-magneto-optical-traps-utilising-micro-fabricated)
McGilligan_etal_OE_2015_Phase_space_properties_of_magneto_optical_traps_utilising_micro_fabricated.pdf
Final Published Version

Download (5MB) | Preview

Abstract

We have used diffraction gratings to simplify the fabrication, and dramatically increase the atomic collection efficiency, of magneto-optical traps using micro-fabricated optics. The atom number enhancement was mainly due to the increased beam capture volume, afforded by the large area (4cm^2) shallow etch (200nm) binary grating chips. Here we provide a detailed theoretical and experimental investigation of the on-chip magneto-optical trap temperature and density in four different chip geometries using 87Rb, whilst studying effects due to MOT radiation pressure imbalance. With optimal initial MOTs on two of the chips we obtain both large atom number (2x10^7) _and_ sub-Doppler temperatures (50uK) after optical molasses.