Author Archives: Felix Fleischhauer

The University of Kent OSA Student Chapter was proud to host Dr. Riccardo Sapienza from King’s College London on the occasion of the School of Physical Sciences colloquium.

Dr. Sapienza was welcomed at the Ingram Building by members of the University of Kent OSA Student Chapter and was taken on a short tour of the Photonics laboratories of the Applied Optics Group. Research in optical coherence tomography and photoacoustic microscopy have been shown. Afterwards Dr. Chao Wang explained research activities done at Microwave Photonics lab from the School of EDA (Engineering and Digital Arts). Research includes Ultrafast imaging systems, optical beamforming and 5G communication. Ultrafast imaging systems are used for high speed signal or image detection and can be used in microscopy and tomography applications with compressive sensing techniques solving needle in haystack problem. Optical beamforming technique is wireless optical communication using optical grating.

After the lab tours Dr. Sapienza was taken to lunch by our academic supervisor Prof. Adrian Podoleanu and joined by the chapters’ president, vice-president and secretary.

At 2 pm, Dr. Sapienza gave his talk entitled “Nanoscale photonic network lasers”. He began by giving a background of complex optical networks and the research he has conducted towards generating such network using polyester fibres combined with quantum dots to enable information flow over several micrometres. Afterwards he explained on how to use such complex network to produce a “random” laser using a specific emitter in a network and pumping the whole network and measuring the outputs of the laser.

At the end of the one hour talk, pictures were taken with the audience and with members of the chapter. The event was attended by staff and students of the Applied Optics Group, School of Physical Sciences and the Communications Research Group, School of Engineering and Digital Arts.

 

Abstract of the talk:

With decades of proven success, lasers have become central to many technologies that are used in manufacturing, communications, medicine and entertainment. Yet laser research continues to develop new types of light sources with unique and unprecedented characteristics, that have not yet been realised with existing laser technology.

Conventional lasers are generally restricted to aligned mirrors at fixed positions and 1D geometries, resembling the original design from the ‘60s. Instead, random lasers are mirror-less lasing systems which use highly disordered materials to obtain laser action, and have attracted significant interest due to their structural simplicity. Here the disordered matrix folds the optical paths by multiple scattering, while optical gain provides the amplification that triggers lasing. The result is an opaque medium in which laser light is generated by flowing and scattering in a speckle-like pattern.

I will introduce photonic network lasing originated from a web-like network of subwavelength waveguides. Building on this I will show how we design and fabricate biocompatible random laser lasers that can be use as sensitive sensors for living tissue integration, opening a path between complex photonics and medicine for future health care.

The University of Kent OSA Student Chapter was proud to host Dr. Arlene Smith, a 2017 OSA Ambassador, who had offered to visit the Chapter and give a talk on professional development. Prior to her visit, the Chapter had advertised the event to staff and students of the School of Physical Sciences and the School of Engineering and Digital Arts by placing television screen adverts in the foyers of the two Schools and by sending email reminders.

The President of the Chapter, Mike Everson, received Dr. Smith at the Ingram Building and took her on a short tour of the Photonics laboratories of the Applied Optics Group. Afterwards she was taken to lunch at Dolce Vita by the Chapter Advisor Professor Adrian Podoleanu and accompanied by the Chapters’ President, Secretary and Treasurer for light conversation.

At 1 pm, Dr. Smith gave her talk entitled “Optical Networking: Connecting You to Your Career”. She began by giving a background of OSA and the field of Optics and Photonics, including information and statistics regarding the different chapters and other associated organisations, collaborative partners and external connections. This gave a very interesting insight into the current work of OSA.

Recounting her personal experience, Dr. Smith presented a guide for postgraduate students, who are thinking about the next step in their career. She highlighted the benefits of being active in the scientific community and encouraged students to network through a variety of different events such as conferences.

At the end of the one hour talk, pictures were taken with the audience and with members of the chapter. The event was attended by staff and students of the Applied Optics Group, School of Physical Sciences and the Communications Research Group, School of Engineering and Digital Arts.

Abstract of the Talk:

In today’s competitive job market, simply having an MSc or PhD may not be enough to get you where you want to go. In this talk, I will share my experiences as an early career professional in the optics industry, including making the jump from academia to industry and the value of establishing and growing a professional network.

Biography of the Speaker:

Dr. Arlene Smith is a Program Manager for Avo Photonics, Inc., USA and a 2017 OSA Ambassador.
She obtained a BSc in Physics and Astronomy from the National University of Ireland, Galway, an MSc in Photonics and Optoelectronic Devices from the University of St Andrews and a PhD from the National University of Ireland, Galway. She previously worked as a Postdoctoral Fellow in Biomedical Imaging at the University of Michigan.

Venue of the Talk:
Room 110, Ingram Building
School of Physical Sciences
University of Kent

Felix FleischhauerMagalie Bondu

From the UBAPHODESA project's website:

The Applied Optics Group and the OSA student chapter of the University of Kent organised a small event for the international celebrated “Day of Photonics” on the 21st of October. The Day of Photonics celebrates the adoption of the current speed of light at the General Conference of Weights And Measures on the 21st of October 1983.

The Applied Optics and OSA student chapter organised a small booth in one of the universities science buildings, presenting various optical instruments and phenomena. They also offered guided lab tours to the photonics labs and gave an insight to the research carried out at the Applied Optics Grouop of the University of Kent.
We had the chance to meet with many interested students and give them an introduction to our research and gave them the opportunity to ask questions concerning optics and our research.

dsc00561
Some of the members of the Chapter, alongside AOG members. From left to right: Prof David Jackson, Felix Fleischhauer, Sophie Caujolle, Manuel Marques, Magalie Bondu, Samuel Edeagu, Mike Everson.

Closer look on our presented experiments:

dsc00558

Impressions during the lab tours:

2016-10-21-14-03-24

2016-10-21-14-26-30

2016-10-21-14-42-48