Wales Tech week

TUESDAY, JULY 14, 2020 (14:00 – 15:30) Cutting-edge photonics research at Bangor University At Bangor University’s school of computer science and electronic engineering (SEECS), cutting-edge research is being pursued in fields of photonics and optoelectronics, including optical super-resolution imaging, sensing, solar energy, laser manufacturing, nano laser, micro robots, 5G communication and IoT. For example, the […]

CPE demonstrates super-resolution imaging nanoscope and nano-marking device

https://www.linkedin.com/pulse/cpe-demonstrates-super-resolution-imaging-nanoscope-device-hazel-hung?fbclid=IwAR31AlaWWl5J4QHyjeP38i3PfeYskBR5ZBb-abb30rhARAzFhDtVWPx9EV4 Business Development Manager for the Centre for Photonics Expertise The CPE Bangor University team, led by Dr James Wang, have demonstrated an imaging technique that allows a normal lab microscope to resolve 100nm features. Furthermore they have extended this work to another super-resolution application to achieve a nano-laser marking device, proving to be an interesting […]

03/2020: PCM objective nanoimaging paper published

The paper published in Applied Optics was highlighted as Editor’s pick. It is another importmanet paper from the group demostrating far-field nanoscope using PCM objective design, which is unique and reliable for commerical exploitation. Our next step is to replace BaTiO3 microsphere in the design with more advanced TiO2 microsphere we synthesised, promising to deliver […]

02/2020: PCM superlens nanopatterning paper published

An important paper for micosphere-based superlens technology, first demostration in the field that particle lens is designed in a way that make distance monitoring and scanning easier, as a result, any patterns can be written directly with laser with subwavelength resolution, in a far-field and air condition. I hope you will find this technology interesting […]

02/2020: We are seeking supplier for a new optical microscope with automated 3D imaging function

New tender is online: https://www.sell2wales.gov.wales/search/show/search_view.aspx?ID=FEB323957Deadline: Feburary 21 2020 Bangor University are planning to purchase an optical microscope for imaging of various research samples including laser processed industrial samples (e.g., metals, plastics, cardboards), semiconductor chips and photonic devices. The microscope must be able to achieve an optical magnification range of 20x-7000x, having a motorized focus (z-direction) […]

12/2019: Preprint “Unibody microscope objective tipped with a microsphere: design, fabrication and application in subwavelength imaging”

https://arxiv.org/abs/1912.09550 (Submitted on 19 Dec 2019) Microsphere-based subwavelength imaging technique was first demonstrated in 2011. After nearly a decade of efforts, such technique has spawned numerous interests in fields such as laser nano-machining, imaging, sensing and biological detection. For wider industrial scale application of the technique, a robust, low-cost objective lens incorporating microsphere lens is […]

12/2019: Preprint: Far-field Compound Super-resolution Lens for direct laser writing of arbitrary nano patterns and beyond (in-press Optics Letters)

https://arxiv.org/abs/1910.03454 (Submitted on 8 Oct 2019) A low-cost compound super-resolution lens, consisting of a Plano-Convex lens and a Microsphere lens (PCM), was proposed and demonstrated for subwavelength direct laser scanning writing application. The PCM lens can achieve a far-field super-resolution of ~{\lambda}/3.5 in air (~6 um away from lens) which surpasses resolution limit of existing […]

12/2019: Paper published: “Full three-dimensional Poynting vector flow analysis of great field-intensity enhancement in specifically sized spherical-particles” published

Abstract The Poynting vector plays a key role in electrodynamics as it is directly related to the power and the momentum carried by an electromagnetic wave. Based on the Lorenz-Mie theory, we report on the focusing effect of a spherical particle-lens by properly analysing the Poynting vector maps. Conventional two-dimensional (2D) maps showing Poynting vector […]