AiPT Research Seminars

The AiPT research seminars bring together international experts and AiPT staff, fostering an environment of knowledge sharing and discovery across a range of diverse topics. The AiPT research seminars continue to promote scientific dialogue and engagement among the global research community, ensuring that AiPT remains at the forefront of innovation and discovery in the fields of photonics and telecommunications.

Upcoming Seminars

Speaker: Dr Julia Lehman
Affiliation: University of Birmingham
Title:
Mid-infrared Frequency Comb Spectroscopy: Spectrometer Development and Applications in Chemistry
Time: 2pm, 8 January 2025

The 2005 Nobel Prize in Physics was awarded in part to John Hall and Theodor Hänsch for their development of optical frequency combs. As a simultaneously spectrally broadband and high-resolution light source, frequency comb lasers have been successfully implemented in a variety of scientific fields ranging from metrology to high resolution spectroscopy. In this talk, I will highlight the advantages of using infrared frequency comb laser spectroscopy in chemical applications ranging from chemical reaction kinetics to high-resolution spectroscopy. I will give you an overview of frequency comb lasers, the design and implementation of a spatially dispersive infrared frequency comb spectrometer,1 and results from our home-built spectrometer. I will focus on our experimental results on the infrared spectroscopy2 of diiodomethane, CH2I2, its photodissociation and subsequent reaction,3 and using the spectrometer for probing low temperature chemistry relevant to the interstellar medium.

Figure adapted from Reference 1. Spatially dispersed 250 MHz repetition rate mid-infrared frequency comb laser, showing absorption by a sample of dilute methane in a gas cell. Each “dot” in the image is a different frequency comb tooth, with this zoomed in image showing approximately 1200 unique frequencies. The dots with attenuated intensity are frequencies that have been partially absorbed by the methane gas sample within the multi-pass absorption cell.

References

  1. Roberts et al., Phys., 2020, 118, e1733116.
  2. Roberts and Lehman, Chem. Phys., 2022, 156, 114301.
  3. Lehman and Weichman, chapter in Emerging Trends in Chemical Applications of Lasers, ACS (2021)
  4. Lucas et al., Chem. Phys., 2024, 161, 094203.

Speaker: Dr. Giulia Marcucci
Affiliation: University of Glasgow
Title: Riding the Wave of Green Change: Advancing Wave-Based Analog Reservoir Computing for Sustainable AI

Time: 11am-12pm, 9 January 2025

Wave-based reservoir computing stands as a promising analogue computing paradigm, offering the potential for efficient and sustainable AI hardware. Various systems—including hydrodynamic, random, nonlinear, quantum, and multimodal approaches—have demonstrated robust physical computing capabilities, each exhibiting reliable input-output characteristics within complex operational domains.

In this presentation, I will explore the recent strides in photonic reservoir computing and share the journey that led me to investigate the complexities of wave propagation, aiming to comprehend its pivotal role in facilitating learning. My objective is to convey three key takeaways: first, the imperative to align technological innovation with ecological responsibility in addressing contemporary challenges; second, the specific contributions I have made toward achieving this alignment; and third, the strategies I have employed to understand, measure, optimise, and control wave-based reservoir computing systems, with the overarching goal of fostering a brighter, greener future

Past Seminars Archive (2024)

Speaker: Dr Angeles Camacho Rosales, Coractive Inc, Canada
Title: Specialty optical fiber technologies, industrial overview
Date: 20 November 2024

Speaker: Dr Antonio Hurtado, UKRI Turing AI Fellow, Institute of Photonics, Dept of Physics, University of Strathclyde
Title: Photonic Spiking Neurons and Spiking Neural Networks for High-Speed Neuromorphic Technologies
Date: 20 November 2024

Speaker: Assoc Prof Ugur Tegin, Koç University (Turkey)
Title: Tunable and scalable optical computing with linear and nonlinear optical dynamics
Date: 18 Nov 2024

Speaker: Prof Alina Karabchevsky, Ben-Gurion Univerity  (BGU)
Title: Advancing Light-Matter Interaction with Photonic Chips
Date: 24 October 2024

Speaker: Prof Massimiliano Guasoni, ORC Southhampton
Title: Optically Reconfigurable Photonics in Optical Fibers
Date: 23 October 2024

Speaker: Prof. Sahin Özdemir, Saint Louis University, USA
Title: Non-Hermiticity as a Resource for Photonics
Date:
16 October 2024

Speaker: Prof. Sahin Özdemir, Saint Louis University, USA
Title: Non-Hermiticity as a Resource for Photonics
Date:
16 October 2024

Speaker: Prof Takeshi Yasui, Institute of Post-LED Photonics (pLED), Tokushima University, Japan
Title:Century of light” pioneered by invisible light
Date:
30 September 2024

Speaker: Dr Yu Tokizane, Institute of Post-LED Photonics (pLED), Tokushima University, Japan
Title: Wireless communication utilizing terahertz waves generated through a Kerr micro-resonator soliton comb
Date:
30 September 2024

Speaker: Dr Eiji Hase, Institute of Post-LED Photonics (pLED), Tokushima University, Japan
Title: Application of dual-comb technique for scan-less confocal imaging of amplitude and phase
Date:
30 September 2024

Speaker: Prof Pavlo Mikheenko, University of Oslo, Norway
Title: Nanosuperconductivity and nanophotonics in biological systems
Date:
19 September 2024

Speaker: Prof Julien Javaloyes, Universitat de les Illes Balears (Spain)
Title: Coherence and multiplicity of frequency combs in Harmonic Mode-Locked lasers
Date:
19 July 2024

Speaker: Andrey Matsko, California Institute of Technology (CalTech), US
Title: Theory and applications of hyperparametric microwave photonic oscillators
Date: 
4 June 2024

Speaker: Professor Daniel Elson, Imperial College London
Title: Spectrally-and polarization-resolved imaging in vivo-providing surgical guidance using vision and robotics
Date:
16 May 2024

Speaker: Prof Francesco Pavone, University of Florence
Title: Morpho-chemical tissue imaging
Date:
9 May 2024

Speaker: Dr Victoria Barygina, University of Florence
Title: Skin signaling: a study in controlled cell co-cultures and detection in vivo
Date:
9 May 2024

Speaker: Dr Mitchell Cox, PhD (Wits), SMIEEE, Optica Ambassador
Title: Towards long range free‐space optical communications at the Wits OC Lab
Date:
30 April 2024

Speaker: Professor Juergen Popp, Friedrich-Schiller University, Institute of Physical Chemistry and Abbe School of Photonics, Germany; Leibniz-Institute of Photonic Technology Jena, a member of the Leibniz Research Alliance Leibniz Health Technology, German
Title: Raman spectroscopy for translational medicine
Date: 
15 April 2024

Speaker: Dr. Pedro Parra-Rivas, Università La Sapienza, Roma, Italy
Title: From temporal to spatiotemporal dissipative solitons: a bifurcation journey in optical resonators
Date: 
7 March 2024

Speaker: Dr Feng Wen, Key Lab of Optical Fiber Sensing and Communications, Ministry of Education, School of Information and Communication Engineering, University of Electronic Science and Technology of China
Title: Signal processing technologies in mode division multiplexing systems
Date:
20 February 2024

Speaker: Dr. Maria Chernysheva, Leibniz Institute of Photonics Technology, Jena, Germany
Title: Trends and prospectives of ultrafast fibre laser development and applications in Leibniz Institute of Photonics Technology
Date:
19 February 2024

Speaker: Dr Kouichi Akahane, National Institute of Information and Communications Technology (Japan)
Title: Semiconductor quantum dot lasers operating in the telecom band
Date:
25 January 2024

 

 

AiPT Seminar Series

The AiPT team organises a series of scientific seminars covering a wide range of topics, from experimental and theoretical challenges in photonics to industrial applications. If you are interested in collaborating with our team and would like to deliver a talk, please contact the AiPT Seminar Chair, Dr Auro Perego, at a.perego1@aston.ac.uk