Vineeth Francis Thalakottoor's Avatar

Vineeth Francis Thalakottoor

@vthalakottoor

A PHYSICIST, A WRITER, NOT PERFECT BUT HONEST. Post-doc at Ecole normale supérieure. https://github.com/VThalakottoor

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17.01.2025
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Latest posts by Vineeth Francis Thalakottoor @vthalakottoor

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PyOR/Examples/Photo_CIDNP/TR_CIDNP.ipynb at main · VThalakottoor/PyOR Python On Resonance (PyOR), a versatile NMR simulator - VThalakottoor/PyOR

Hello everyone, here is an example of a CIDNP simulation written by Marta Stefańska using PyOR. It is now possible to define your own Lindblad dissipators in PyOR.

Github: github.com/VThalakottoo...

#NMR #NMRchat

23.02.2026 10:14 👍 3 🔁 1 💬 0 📌 0
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After 6 years (PhD + postdoc), this chapter closes. From NMR-DNP masers, PyOR, probes & instrumentation → 2 papers (PCCP, PRL) + more coming. Grateful to my mentors & colleagues. Next week: Electronics Engineer at NIMBE-LSDRM (CEA Paris-Saclay) with CNRS #NMRChat #NMR

29.01.2026 12:43 👍 2 🔁 1 💬 0 📌 0
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PyOR/Examples/Pulsed_DNP/NOVEL.ipynb at main · VThalakottoor/PyOR Python On Resonance (PyOR), a versatile NMR simulator - VThalakottoor/PyOR

Here is the implementation of NOVEL (Nuclear Orientation via Electron Spin Locking) in PyOR. I thank the Pulsed DNP workshop Lyon 2026 team for the wonderful opportunity to learn about pulsed DNP.
github.com/VThalakottoo...
#NMR #NMRChat #PyOR

26.01.2026 14:35 👍 2 🔁 1 💬 0 📌 0
Jean Jeener, 1931 – 2023 – ISMAR

Remembering Jean Jeener, whom I never met but who deeply inspired me.
ismar.org/2023/07/24/j...

09.12.2025 05:52 👍 1 🔁 0 💬 0 📌 0
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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

09.12.2025 05:21 👍 3 🔁 1 💬 1 📌 1
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PyOR/Examples/Maxwell_Bloch_Simulations/SpinEcho.ipynb at main · VThalakottoor/PyOR Python On Resonance (PyOR), a versatile NMR simulator - VThalakottoor/PyOR

Starting as an electronics engineer (IE) at CEA Paris-Saclay in February, but I’ll keep developing PyOR into a solid teaching tool for beginners in NMR, EPR, and MRI.
Here’s a spin-echo simulation using the classical Bloch equations:
github.com/VThalakottoo...

#NMR #NMRchat #PyOR

28.11.2025 13:00 👍 5 🔁 2 💬 0 📌 0
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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

08.10.2025 10:39 👍 2 🔁 1 💬 0 📌 0
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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

02.10.2025 10:22 👍 3 🔁 1 💬 0 📌 0
PyOR: A Versatile Magnetic Resonance Simulator | Dr. Vineeth Francis Thalakottoor | Session 105
PyOR: A Versatile Magnetic Resonance Simulator | Dr. Vineeth Francis Thalakottoor | Session 105 YouTube video by Global NMR Discussion Meetings

Here is the link to the talk about PyOR, which I gave at the 105th Global NMR Discussion meetings: youtu.be/S45ps8uQJcc

#NMR #PyOR #NMRchat

29.09.2025 11:48 👍 1 🔁 1 💬 0 📌 0
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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

18.09.2025 12:37 👍 1 🔁 1 💬 0 📌 0

Here are the slides (link below) of the talk I gave at the 105th Global NMR Discussion Meeting. I thank the organizers for the opportunity to present PyOR.
github.com/VThalakottoo...
#NMR #PyOR #NMRchat

10.09.2025 08:36 👍 2 🔁 1 💬 0 📌 0
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Join us on Tuesday, September 9, at 5 PM Paris/ 11 AM Boston/8:30 PM Delhi for a talk by Dr. Vineeth Francis Thalakottoor: PyOR: A Versatile Magnetic Resonance Simulator for Learning and Teaching #NMR #NMRchat #ChemSky

05.09.2025 06:22 👍 4 🔁 3 💬 0 📌 0
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Join our Cloud HD Video Meeting Zoom is the leader in modern enterprise cloud communications.

Interested to know about PyOR (Python On Resonance)?
Attend the 105th Global NMR meeting.
Title: PyOR: A Versatile Magnetic Resonance Simulator for Learning and Teaching
Time: Tuesday, September 9th, 11:00 AM Boston/ 5:00 PM Paris/ 8:30 PM Delhi
Link: nyu.zoom.us/j/91419770855
#NMR #NMRchat

02.09.2025 09:49 👍 2 🔁 1 💬 0 📌 0
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The Bruker AU program sends instructions to the FPGA. #NMR #TopSpin #NMRchat

21.08.2025 16:34 👍 1 🔁 1 💬 0 📌 0

Hexadecimal values 7FFF, 8000, and 0000 correspond to 10V, 0V, and 5V, respectively.

20.08.2025 13:37 👍 1 🔁 0 💬 1 📌 0
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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

20.08.2025 13:36 👍 2 🔁 1 💬 1 📌 0

From bottom, 16-bit data (7F01), chip select, Enable input register of DAC, Enable D/A Latch (DAC), and SPI clock.

08.08.2025 09:40 👍 1 🔁 0 💬 0 📌 0
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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

08.08.2025 09:39 👍 3 🔁 1 💬 1 📌 0

abstract: euromar2025.org/assets/pdf/E...
#NMR #NMRchat

03.07.2025 09:40 👍 1 🔁 0 💬 0 📌 0

I will be presenting a poster at EUROMAR 2025 in Oulu on the topic of NMR masers and PyOR:
“NMR Masers: From Single-Mode DNP Hyperpolarization at 1.2 K to Multimode Masers in Solution via Electronic Control of Radiation Feedback.”
poster: HYP 008
#NMR #NMRchat

03.07.2025 09:39 👍 5 🔁 1 💬 1 📌 0
Home An educational platform for learners, by learners for magnetic resonance, quantum information sciences, and education (MARQUISE)

Here is my second post about "Simulating a Spectrum" with PyOR, on MARQUISE - Magnetic Resonance
Quantum Information
Science and Education (quantum-resonance.org): quantum-resonance.org/introduction...
Follow MARQUISE: www.linkedin.com/company/marq...

#NMR #NMRchat

09.06.2025 08:17 👍 3 🔁 1 💬 0 📌 0
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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

22.05.2025 17:34 👍 1 🔁 1 💬 0 📌 0
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MARQUISE Education | LinkedIn MARQUISE Education | 75 followers on LinkedIn. A platform for learners, by learners in Magnetic Resonance Quantum Information Science and Education | Our mission is to develop and distribute education...

In this first post, I introduce some key features of PyOR and the concept of "Quantum Objects." Curious about how quantum objects are created in PyOR? Check out the link — and don’t forget to follow MARQUISE Education (www.linkedin.com/company/marq...) for my future posts!

#NMR #NMRchat

16.05.2025 07:16 👍 1 🔁 1 💬 0 📌 0
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Introduction to PyOR: A versatile NMR Simulator his post introduces PyOR (Python On Resonance) — a versatile NMR simulator designed to address a wide range of magnetic resonance problems.

Hello everyone! I’m excited to share that I had the wonderful opportunity to write about PyOR (Python On Resonance) through MARQUISE — a platform by learners, for learners in Magnetic Resonance Quantum Information Science and Education.
quantum-resonance.org/introduction...

#NMR #NMRchat

16.05.2025 07:15 👍 1 🔁 1 💬 1 📌 0
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GitHub - VThalakottoor/Serial_Bruker_AUprogram_Arduino Contribute to VThalakottoor/Serial_Bruker_AUprogram_Arduino development by creating an account on GitHub.

For anyone interested in implementing serial and VISA communication in Bruker's AU programs to automate NMR experiments with external instruments, here are the programs I made:

1. Serial: github.com/VThalakottoo...

2. Visa: github.com/VThalakottoo...

#NMR #NMRchat

13.05.2025 09:24 👍 4 🔁 1 💬 0 📌 0
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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

25.04.2025 11:58 👍 3 🔁 1 💬 0 📌 0
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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

24.04.2025 06:21 👍 4 🔁 2 💬 0 📌 0
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GitHub - VThalakottoor/PyOR: Python On Resonance (PyOR), a versatile NMR simulator Python On Resonance (PyOR), a versatile NMR simulator - VThalakottoor/PyOR

I am excited to announce the first major release of PyOR (Python On Resonance)!

PyOR is now modular: github.com/VThalakottoo...

Download & cite: doi.org/10.5281/zeno...

Here is a powder-averaged spectrum (CSA) simulated using PyOR: github.com/VThalakottoo...

#NMR #NMRchat

21.04.2025 12:13 👍 5 🔁 1 💬 0 📌 0
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PyOR/Examples/Hamiltonians/DipolarHamiltonian.ipynb at main · VThalakottoor/PyOR Python On Resonance (PyOR), a versatile NMR simulator - VThalakottoor/PyOR

PyOR is making small steps to do solid-state NMR. Look at this example about dipolar Hamiltonian and interaction tensor, Euler and Wigner rotation, and Wigner matrix. If you find something is wrong write to me. #NMR #NMRchat

github.com/VThalakottoo...

10.04.2025 17:11 👍 2 🔁 2 💬 0 📌 0
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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

10.04.2025 09:39 👍 1 🔁 1 💬 0 📌 0