Vineeth Francis Thalakottoor
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vthalakottoor.bsky.social
Vineeth Francis Thalakottoor
@vthalakottoor.bsky.social
58 followers 72 following 42 posts
A PHYSICIST, A WRITER, NOT PERFECT BUT HONEST.
Post-doc at Ecole normale supérieure.
https://github.com/VThalakottoor
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vthalakottoor.bsky.social
Here are PyOR tutorials on COSY (States-Haberkorn-Ruben and TPPI methods) by John Price @jpricephysics.bsky.social (Q Magnetics).

github.com/VThalakottoo...

If anyone is interested in making PyOR tutorials about NMR experiments, you are always welcome.

#NMR #NMRchat #PyOR
December 9, 2025 at 5:21 AM
vthalakottoor.bsky.social
Effect of vibration of NMR probe (400 MHz): checking how the impedance of the resonator is affected by the vibration created by a mobile phone. Plot: phase modulation with and without vibration.

#NMR #NMRchat
October 8, 2025 at 10:40 AM
vthalakottoor.bsky.social
Digital control of feedback phase to control radiation damping in water: a project I started from level zero and finally completed. Now the Bruker AU program is capable of finding the radiation damping suppression phase fully automatically.
#NMRchat #NMR
October 2, 2025 at 10:23 AM
vthalakottoor.bsky.social
Finally, the digitization of the Radiation damping control unit is done. Bruker AU program for automating NMR experiments by digitally controlling the radiation feedback field phase.

#NMR #NMRchat
September 18, 2025 at 12:39 PM
vthalakottoor.bsky.social
The Bruker AU program sends instructions to the FPGA. #NMR #TopSpin #NMRchat
August 21, 2025 at 4:34 PM
vthalakottoor.bsky.social
Finally, the 16-bit digital-to-analog converter (DAC714) is working. In a few weeks, Bruker Topspin will take control of the DAC via FPGA (UART and SPI). And then the phase shifter of the radiation damping control unit.
#NMR #FPGA #NMRchat
August 20, 2025 at 1:36 PM
vthalakottoor.bsky.social
The FPGA programming is completed for controlling a voltage-controlled phase shifter via a 16-bit DAC (DAC714) using SPI for a digitalized radiation damping control unit for doing feedback-based Maser/Raser experiments.

##NMR #NMRchat
August 8, 2025 at 9:40 AM
vthalakottoor.bsky.social
Here’s a one-page story. If you find it meaningful, share it with a friend pursuing a PhD who might be going through some small struggles.

#NMR #PHD #NMRchat
May 22, 2025 at 5:34 PM
vthalakottoor.bsky.social
Here is an example of magic angle spinning (CSA) in PyOR. The next implementation will be hyperpolarization + EPR.

Visit GitHub: github.com/VThalakottoo...

Example MAS: github.com/VThalakottoo...

#NMR #NMRchat
April 25, 2025 at 11:58 AM
vthalakottoor.bsky.social
Python On Resonance (PyOR)
"Everybody can simulate NMR"

Here is the PyOR's documentation page: vthalakottoor.github.io/PyOR/

Github: github.com/VThalakottoo...

DOI: doi.org/10.5281/zeno...

#NMR #NMRchat
April 24, 2025 at 6:21 AM
vthalakottoor.bsky.social
It was worth building a 285 MHz resonator to spin the protons at 1.2 K for an extended period. NMR Maser from frozen water via DNP. #NMR #NMRchat
April 10, 2025 at 9:39 AM
vthalakottoor.bsky.social
I have attended all summer schools (2020, 2023 to 2025) at Schloss Windischleuba (a beautiful castle) in Germany, organized by Jörg Matysik (Uni. of Leipzig). These schools have been my only classroom experience in learning NMR. Feel free to explore them yourself.
#NMR #NMRchat
March 24, 2025 at 8:19 AM
vthalakottoor.bsky.social
Here is an equation I derived for the vibration effect in NMR spectra. It is very similar to EOM (electro-optic modulator) in optics #NMR #NMRchat
March 21, 2025 at 7:59 AM
vthalakottoor.bsky.social
I was thinking of using the Bruker AU program to communicate with a wide range of instruments during my PhD days onwards. Today I established communication with an oscilloscope via "visa", a small move but may (will) be helpful for many NMR instrumentation people
#NMR #NMRchat
February 20, 2025 at 2:20 PM
vthalakottoor.bsky.social
I have uploaded a new version of PyOR (Python On Resonance) which is more user-friendly with more functionalities. I will upload more examples in the coming days. Looking forward to your feedback.

github.com/VThalakottoo...

#NMR #NMRchat
February 17, 2025 at 9:23 AM
vthalakottoor.bsky.social
India has two classical music traditions: Hindustani & Carnatic. Just heard Garaj Garaj... in Raga Megh Malhar, such a beautiful song with deep meaning!
www.youtube.com/watch?v=DkgN...
February 14, 2025 at 9:54 AM
vthalakottoor.bsky.social
Simulating Mz profile (Rsnob.1000) using PyOR and comparing with shape Tool of Bruker Topspin.
(PyOR can take Bruker shape file for simulation)
#NMR #NMRchat
February 11, 2025 at 5:44 PM
vthalakottoor.bsky.social
ON and OFF, the LED on an Arduino via TopSpin AU Program. The first stage to control the radiation-damping control unit from Topspin.
#NMR #NMRchat
February 6, 2025 at 6:19 PM