Talk at City University London by Prof. Govind P. Agrawal, 15th July 2015

We will have a talk from Prof. Govind P. Agrawal on the 15th July from 4pm to 5pm.  Refreshments will be served from 3.30pm. Details are below.

Space-Time Duality in Optics

Govind P. Agrawal

The Institute of Optics, University of Rochester, Rochester, NY 14627 USA
The concept of space-time duality, known since the 1960s, is attracting attention in recent years in the context of temporal imaging. In this talk I review these advances and then focus on our recent work on the temporal analog of reflection and refraction of optical pulses in a medium whose refractive index changes suddenly at a temporal boundary. Analogs of total internal reflection and temporal wave-guiding will also be presented.

Govind P. Agrawal received the B.S. degree from the University of Lucknow in 1969 and the M.S. and Ph.D. degrees from the Indian Institute of Technology, New Delhi in 1971 and 1974 respectively.
After holding positions at the Ecole Polytechnique, France, the City University of New York, and Bell Laboratories, Murray Hill, NJ, Dr. Agrawal joined in 1989 the faculty of the Institute of Optics at the University of Rochester, where he is James C. Wyant Professor of Optics. His research interests focus on optical communications, nonlinear optics, and laser physics. He is an author or coauthor of more than 400 research papers, and eight books. His books on Nonlinear Fiber Optics (Academic Press, 5th ed., 2013) and Fiber-Optic Communication Systems (Wiley, 4th ed., 2010) are used worldwide for research and teaching. Prof. Agrawal is involved with both IEEE and OSA (The Optical society) and has helped them with journal publishing and conference organization. During 2009 and 2010 he chaired the Publication Council and served on the Board of Directors of OSA. In 2012, IEEE Photonics Society honored him with its prestigious Quantum Electronics Award. He was also the recipient of the 2013 William H. Riker University Award for Excellence in Graduate Teaching.
Dr. Agrawal is a Fellow of both OSA and IEEE. He is also a Life Fellow of the Optical Society of India.


Location: City University London, Centenary Building (building 5), Birley Lecture Theatre, EC1V 0HB
Date and Time: Wednesday, 15th July 2015. Lecture from 4 pm to 5 pm
Coffees: Convocation Suite (in basement) from 3:30 pm to 4 pm.
Contact: Prof. B M A Rahman, City University London, Email:
Directions: Nearest Tube station: Angel, Northern Line (Bank branch). Use Entrance shown by a red arrow for Building 5 (Centenary Building) at the junction of Spencer Street and St John Street.

Robert Woodward wins Gold in Physics and Westminster Medal at SET for BRITAIN Competition

L-R: Lord Oxburgh (President, Parliamentary and Scientific Committee); Dr Stephen Benn (Society of Biology and a Vice-President of the Parliamentary and Scientific Committee, Master of Ceremonies on the day); Andrew Miller MP (Chairman, Parliamentary and Scientific Committee); Robert Woodward (Winner of the Gold Award for Physics and of the Westminster Medal); Julian Perfect and Mrs Sue Wharton (widow of Dr Eric Wharton).

L-R: Lord Oxburgh (President, Parliamentary and Scientific Committee); Dr Stephen Benn (Society of Biology and a Vice-President of the Parliamentary and Scientific Committee, Master of Ceremonies on the day); Andrew Miller MP (Chairman, Parliamentary and Scientific Committee); Robert Woodward (Winner of the Gold Award for Physics and of the Westminster Medal); Julian Perfect and Mrs Sue Wharton (widow of Dr Eric Wharton).


Mr Robert Woodward, Student Representative and Committee Member of the OSA London Local Section, has won the Gold award in Physics and the overall Westminster Medal at the SET for BRITAIN poster competition held at the House of Commons. The overall aim of SET for BRITAIN is to encourage, support and promote Britain’s early-stage and early-career research scientists, engineers, technologists and mathematicians who are an essential part of continuing progress in and development of UK research and R&D.

Congratulations Rob!

More information on the winners here:

See Rob’s poster here:

Lecture at City University from Dr Siddharth Ramachandran, 5pm 8th June 2015

Singular light in fibers: Beams that can do what Gaussians cannot
Siddharth Ramachandran
ECE Department & Photonics Center, Boston University, Boston, MA, USA;; +1-617-353-9881

Gaussian beams are the ground-state solution for light in any optical system, and are the desired state for many systems such as laser cavities and optical fibers. On the other hand, spatially complex beams of light, possessing phase- or polarisation-singularities, display several intriguing phenomena such as enhanced propagation stability, the ability to self-heal, or carry orbital-angular-momentum. This talk will introduce their physics of operation, and describe the utility of generating and propagating them in fibers, for applications ranging from high-power lasers and nano-scale imaging, to scaling the capacity of optical networks.

Dr Siddharth Ramachandran obtained his Ph.D. in Electrical Engineering from the University of Illinois, Urbana-Champaign, in 1998. Thereafter, he joined Bell Laboratories as a Member of Technical Staff and subsequently continued with its spin-off, OFS Laboratories. After a decade in industry, Dr. Ramachandran moved back to academics in 2010, and is now a Professor in the Department of Electrical Engineering at Boston University. Prof. Ramachandran’s research focuses on the optical physics of guided waves. He has authored over 200 refereed journal and conference publications, more than 50 invited talks, plenary lectures and tutorials, 3 book-chapters, edited one book, and has been granted 37 patents. For his contributions in the field of fiber-optics, he was named a Distinguished Member of Technical Staff at OFS Labs in 2003, a fellow of the Optical Society (OSA) in 2010, and an IEEE Distinguished Lecturer for 2013-2015. He served as a topical editor for Optics Letters from 2008-2011 and associate editor for IEEE Journal of Quantum Electronics from 2011-2014, in addition to serving on numerous conference and advisory committees in the field of optics and applied physics, including as program chair for CLEO-2015.
Location: City University London, Centenary Building, Birley Lecture Theatre, EC1V 0HB
Date and Time: Monday, 8th June, 2015. Lecture from 5 pm to 6 pm
Coffees: Drysdale Building, Seating areas, from 4:30 pm to 5 pm.
Contact: Prof. B M A Rahman, City University London, Email: 079 29 6262 23
Nearest Tube station: Angel, Northern Line (Bank branch)

OWTNM Workshop Reception sponsored by the OSA London Local Section

The OSA was kind enough to provide funding through the OSA London Local Section for the welcome reception at the Optical Waveguide Theory and Numerical Modelling Workshop which was held at City University earlier this month.  The reception and the workshop itself were a roaring success, with attendees enjoying every minute and having some insightful and interesting conversations. I’m sure a number of fruitful collaborations will spring from this. Here are a few photos to see just how much fun it was!

OWTNM evening_E Starling-10

OWTNM evening_E Starling-23

OWTNM evening_E Starling-54

OWTNM evening_E Starling-55

Imperial Festival 2015

Returning for its fourth year and continuing to grow in popularity, Imperial Festival will be held for the first time over the two full days of Saturday 9 May and Sunday 10 May 2015.

It will be a jam-packed schedule of performances, activities and ways to get involved with the best in science and arts at Imperial. Some Festival highlights include:

  • Voyage of discovery: Take a trip to the Research Zone Marquee to meet our researchers and take part in a huge array of hands-on experiments. Send sand flying with an asteroid attack on planet Earth, do battle with Brigadier Bogey and the Snot Doctors, and make energy from light and water.
  • Meet the microbes: Head over to the new Superbug Zone to chat with the scientists behind the bacteria, and find out why antibiotic resistance is one of the world’s biggest challenges.
  • Take in some tunes: Soak up the Festival atmosphere in the Music Tent, with performances from musicians including popular geek-pop singer Jonny Berliner and the Imperial College String Ensemble.
  • Leading lights: Drop into the Light Zone to try your hand at presenting in the Performance Simulator, a portable recreation of a concert hall, and then turn yourself invisible.

See for more information!

The London Plasmonics Forum

Below is an invitation to attend the London Plasmonics Forum which will be held in June at Kings College London. It should be a great meeting and of interest to members of the OSA London Local Section.


We, Prof. Anatoly Zayats and Prof. Stefan Maier, would like to invite you to The London Plasmonics Forum on the 18th of June 2015. It is open to all researchers and companies and this time will run together with the final Active Plasmonics Programme grant meeting. Everyone is invited to attend and present a poster. The registration is free but please register using the link below for logistic purposes (you will also find there a tentative programme for the day). Please feel free to forward this invitation to your colleagues and students. We hope The London Plasmonics Forum will become a regular exciting event.

We are looking forward to seeing you in London on 18 June.


Optical wave and waveguide theory and numerical modelling (OWTNM) workshop


The OSA London Local Section is co-sponsoring the welcome reception on Thursday 16th April 6pm to 8pm at the Optical wave and waveguide theory and numerical modelling (OWTNM) workshop being held at City University.

The yearly OWTNM workshop has, since 1992, provided a forum for lively debates, intended to bring forward new ideas in the field of theoretical and computational photonics.

Basic physics and novel applications, artificially structured materials and new devices, elegant mathematical techniques and efficient numerical methods to tackle the Maxwell equations form the constantly evolving subjects. These are discussed in a traditionally open and relaxed atmosphere.

OSA members are encouraged to attend the welcome reception and should email Dr Arti Agrawal on

Prof. Claude Cohen-Tannoudji, Imperial College London

Professor Claude Cohen-Tannoudji (Collège de France and Laboratoire Kastler Brossel), Nobel Laureate in Physics 1997 & CNRS Gold Medal winner in 1996, will give a lecture on ‘Dark States: From Quantum Optics to Ultracold Atoms and Molecules’ on Wednesday 25th March at 4pm in Lecture Theatre 1, The Blackett Laboratory at Imperial’s South Kensington Campus. This event has been organised by Dr Roland Guichard (AMOPP Group, UCL) & Dr Amelle Zair (Imperial).