Sivarama Krishnan Email & Phone Number

Chennai, Tn, In

Chennai Area, India

I am involved in education and research in physics at IIT-Madras at the Department of Physics. I am focused on research involving femto- and sub-femtosecond dynamics of nanoscale atomic systems, nanoscale superfluid systems, EUV physics with synchrotrons and table-top laser sources and I have interests in technologies involving photonic devices and photolithography at deep-UV and EUV wavelengths. I am passionate about physics in general and bring that to the fore in my day to day activities finding appealing ways to convey the subject and concepts in the lecture hall and laboratory, as well as by innovations and creativity in scientific and technological research.

Chennai Area, India

I am involved in education and research in physics at IIT-Madras at the Department of Physics. I am focused on research involving femto- and sub-femtosecond dynamics of nanoscale atomic systems, nanoscale superfluid systems, EUV physics with synchrotrons and table-top laser sources and I have interests in technologies involving photonic devices and photolithography at deep-UV and EUV wavelengths. I am passionate about physics in general and bring that to the fore in my day to day activities finding appealing ways to convey the subject and concepts in the lecture hall and laboratory, as well as by innovations and creativity in scientific and technological research.

Hyderabad Area, India

I developed an experimental end-station for work on micro- and nano-scale targets using intense- and super-intense femtosecond laser pulses.

I worked on optical lithography (computation and physics) in the development of technology for the 14nm and 10nm nodes.I was involved in innovations on sources for EUV lithography which led to a US patent - US 9,301,381, 2016.

Heidelberg, Germany

▪ Scientist, Max Planck Institute for Nuclear Physics, Heidelberg, Germany▪ Working on:"Ultrafast femtosecond dynamics of plasmons in gas-phase nanoparticles";▪ Delivered a complete self-contained workstation for ionization studies with femtosecond lasers and synchrotron pulses (EUV, soft- x-ray);▪ Designed & built set-ups for experiments on nanoparticles with intense 5-fs IR pulses;▪ Implemented interferometric diagnostics for IR fs pulses; Maintained fs laser systems;▪ Devised electromagnetic particle detection schemes for ions: time-of-flight spectrometers;▪ Improved and optimized alkali sensors (Langmuir-Taylor); Solid-state X-ray detectors;▪ Extensive experience with design tools: Electromagnetics – SIMION, Mechanics – SolidWorks;▪ Electronic instrumentation: fast-amplifiers, data-acquisition; Labview hardware interfaces.▪ Numerical simulation in Matlab & C++; Developed physics models for femtosecond dynamics.▪ Piloted a cross-functional collaboration across 4 major institutes in Germany & India ▪ Associated skills:- Programming in Matlab, LabView, C++ and some PERL scripting; A working knowledge of Mathematica,- Femtosecond laser ionization source and associated optics;- Time-of-flight mass spectrometry;- Sensor and detector development, optimization and validation: ions, x-rays, molecules and large nanoparticles;- Imaging and interferometry;- He nanodroplet (cryogenic) and rare-gas cluster sources;- Ion, electron and X-ray detection;▪ Honors:- Scholarship of International Max Planck Research School for Quantum Dynamics, Germany, 2008 - 2012.▪ Publications:S. R. Krishnan et al., Dopant-induced ignition of He nanodroplets in Intense Few-cycle IR pulses, Physical Review Letters 107, 173402 (2011).

Anantapur, India

Engaged in research and instruction:• Developed schemes for all-optical image processing: Fourier techniques and spatial-filtering;• Implemented workbenches for nonlinear- and thermo-optic measurements: Z-scan, Four-wave mixing, Mach-Zehnder interferometers;• Delivered product-prototypes for optical limiting based on nonlinear and thermo-optic effects in nanomaterials;• Operated several pulses laser systems and optical spectrometers;• Delivered an indigenous chemical vapor deposition system for the synthesis of carbon nanotubes and inorganic nanowires.• Implemented - user-friendly data analysis consoles MATLAB and C++, with complete GUI;- hardware control using LabView, MATLAB and C++.▪ Courses taught - Optics, Lasers and Nonlinear optics (advanced), Numerical techniques in Physics using Matlab (advanced);▪ Certified for instructor by the University Grants Commission, India in 2001; supervised Four Masters’ theses.▪ Obtained funding and delivered two successful research projects (5,000,000 INR):(i) “Innovative programme for education, training and research,” Agency: University Grants Commission, India; Year: 2007.(ii) “Development of Nanostructured Materials for Optical Limiting,” Agency: Naval Research Board, India, Year: 2007.• Co-organizer in two international workshops:(a) "Science and Applications of Nanostructured Materials," February 2004;Role: Co-organizer, international coordination and secured funding from Department of Science and Technology, Government ofIndia and University Grants Commission, India.(b) "Non-Linear Optical Effects in Fibers, Waveguides and other Media," 5-7 December, 2003; Role: Co-organizer, international coordination and secured funding from University Grants Commission, India.

Mumbai, India

▪ Novel optical solution for plasma thermal profile imaging with an alignment-free wavefront shearing interferometer.▪ Investigated super-continuum emission from fs pulses using optical spectroscopy.▪ Numerical simulation (Matlab): intense fs laser beam propagation; developed physics models.Resulting publications:1) P. P. Kiran, S. Bagchi, Siva Rama Krishnan, C. L. Arnold, G. R. Kumar, and A. Couairon, Focal dynamics of multiple filaments: Microscopic Imaging and Reconstruction, Phys. Rev. A 82, 013805 (2010).2) P. Prem Kiran, Suman Bagchi, Cord L. Arnold, Siva Rama Krishnan, G. Ravindra Kumar, and Arnaud Couairon, Filamentation without intensity clamping, Optics Express 18, 21504 (2010).

Doctor Of Philosophy (Ph.D.), Laser-Matter Interaction, Magne-Cum-Laude

M.Sc., Physics

Activities and Societies: Education at the Masters' level and research in photonics with nanoscale systems.I was engaged in research.

All India Senior School Certificate, Central Board Of Secondary Education

Activities and Societies: Debate team, Quiz team, Cricket team.