Hot Brownian Colloids – talk

On 19th Jan 2023, I gave a ~40 min talk on “Hot Brownian Colloids in Structured Optical Tweezers” in a very interesting conference on Frontiers in Non-Equilibrium Physics (FNEP) held at Institute of Mathematical Sciences, Chennai.

I mainly spoke about emergent Brownian dynamics of laser-heated colloids under optical confinement. Below is the link to the talk.

I concluded my talk quoting P W Anderson’s essay “More is Different

“The constructionist hypothesis breaks down when confronted with the twin difficulties of scale and complexity.  The behavior of large and complex aggregates of elementary particles, it turns out, is not to be understood in terms of a simple extrapolation of the properties of a few particles.

Instead, at each level of complexity entirely new properties appear, and the understanding of the new behaviors requires research which I think is as fundamental in its nature as any other.”

P.W. Anderson  ‘More is Different’
Science, 177, 4047 (1972)

More is not only different, but also wonderful !

My talk at ICTS

On 1st Dec 2022, I gave a talk on “Structured-Light Scattering : Implications in Momentum Space” as part of a discussion meeting on STRUCTURED LIGHT AND SPIN-ORBIT PHOTONICS held at International Center of Theoretical Sciences, Bangalore.

I mainly spoke about topological light scattering in the frame work of angular momentum of light and absorptive effects in optothermal tweezers created by structured light.

Below is the embedded video link to my talk. The playlist also has many other interesting talks related to the topic.