நேறியல் இல்லாத (Nonlinear) ஃபைபர் ஆப்ட்டிக்ஸ் என்றால் என்ன?

2012 இல் ஆஸ்டன் பல்கலைக்கழகம் ஏற்பாடு செய்த “தகவல்தொடர்புகளில் சிறப்பானது” என்ற போட்டியில் பரிசு வென்ற நுழைவு பின்வருமாறு. பரிசு வென்ற அனைத்து உள்ளீடுகளையும் இங்கே காணலாம். Translated by N. Sugavanam/ மொழிபெயர்ப்பு: திரு. என். சுகவனம். அனைத்து பொருட்களையும் திருகு சுருள் வில்(spring) மற்றும் திருகு சுருள் வில்லின் நெட்வொர்க்குகள் என்று கற்பனை செய்து பாருங்கள். உதாரணமாக, நீங்கள் ஜெல்லியின் ஒரு குமிழை ஒரு அசைவு கொடுத்தால், அது கொஞ்சம் கொஞ்சமாக அசைந்து, பின்னர்…
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Bar-time Dynamics II – Making waves

Of Fourier transforms and spectro-temporal dynamics In my previous blog Bar-Time Dynamics, I had taken an audio file of a song, and applied my methods of laser analysis – spatio-temporal dynamics – to it. It became a visual representation of the song structure, and with a nifty phase-flip also revealed the differences in the way…
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Bar-time Dynamics

Spatio-temporal dynamics… of an ARR song?

Adiabatic steps

Constraint is good fodder for creativity. Masayoshi Fujita makes the most of it.

What could a Space Colonisation-101 course look like?

The prospect of colonising space is no longer a pipe dream. But, are we prepared for it?

This is Photonics.

The endeavour of measurement is integral to the construction of knowledge in the natural sciences. The finer and more reliable our measuring ruler is, the more confident we can be about the evidence we present and the worldview we construct. Light provides us with such a precise ruler. It is an established fact that the…
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What Andrew Ng’s Machine Learning course teaches about Online Course design

I had been wanting to do Andrew Ng’s foundational course on Machine Learning for quite some time. I was mostly indoors over Christmas, so I thought it was good time to finally dip my toes in it. My primary apprehension was whether I would be able to complete the three-month long course given my existing…
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Stretching it a bit – Nonlinear Fibre Optics

The following is a prize-winning entry in the competition “Excellence in Communication” organised by Aston University in 2012. You can find all the prize winning entries here. Imagine that all materials are made of springs, and networks of springs. For example, if you give a blob of jelly a nudge, it wobbles around a bit and…
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The Academic Workshop Organiser’s Checklist

#PhoMedDia2018 A bit late than never! Finally found time to upload some pics taken at the #GCRF @AIPTMultiply Photonics for Medical Diagnostics Workshop at Aston University this September. It was a great learning experience, met some lovely people, and in all had fun! Till soon! — Srikanth Sugavanam (@Srikanthislive) 6 October 2018 It’s been…
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Rediscovering Chopin

Chopin Monument in Warsaw with the permission of the authors Marek and Ewa Wojciechowscy (from Wikipedia).   Literally a stone’s throw away from Aston University, the Royal Birmingham Conservatoire makes for a much needed pit stop from my weekly grind. It is a reassuring sight to see scores of eager young individuals immersing themselves in music and honing…
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