Bilde av Zakoldaev, Roman
Bilde av Zakoldaev, Roman
Researcher / Ultrasound, microwaves and optics Department of Physics and Technology roman.zakoldaev@uit.no Tromsø You can find me here

Roman Zakoldaev


Job description

Designing photonic components and laser technologies for spectroscopic analysis, with a focus on detecting gases and biomolecules at ultra-low concentrations.

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Publications outside Cristin

Google Scholar: click me

Interesting to check out:

1. A nanophotonic waveguide was developed to detect CO₂ at one molecule per billion with isotope ratio precision matching high-end instruments, advancing climate and bio-science applications.

Jehona Salaj, Marek Vlk, Roman Zakoldaev, Ragnar Seton, Jiri Ctyroky, Sebastian Alberti, Astrid Aksnes and Jana Jágerská. Suspended Nanophotonic Waveguide for Isotope-Specific CO₂ Detection OPTICA - 2024

2. We developed a nanophotonic waveguide achieving 0.3 ppm methane detection, surpassing current on-chip spectroscopy limits and enabling highly sensitive, reliable sensors for climate and industry.

Yallew HD, Vlk M, Datta A, Alberti S, Zakoldaev RA, Høvik J, Aksnes A, Jágerská J. Sub-ppm Methane Detection with Mid-Infrared Slot Waveguides ACS photonics - 2023

3. We demonstrated femtosecond laser writing of optofluidic elements in a nanoporous silicate matrix, enabling barriers, waveguides, and microchannels with precise control over geometry and functionality.

Shishkina A.S., Yandybaeva Y.I., Yakimuk V.A., Alsaif Y., Zakoldaev, R.A. Direct Laser Writing and Investigation of Optofluidic Elements inside Nanoporous Silicate Matrix Optics and Spectroscopy - 2023


Research interests

My research focuses on photonics, laser technologies and nanomaterials. I developed a nanofluidic elements, resulting in a patented photonic gas sensor.

Within my team in 'Direct Laser Writing in Glass' we pushed the boundaries of sub-micron structuring for applications in augmented reality, microfluidics, and bulk waveguides.

Since moving above the Arctic Circle, I have been advancing waveguide-based sensors for greenhouse gases. Recently, our team demonstrated a nanophotonic waveguide engineered to ‘localize light in air,’ enabling CO₂ detection at the level of a single molecule in a billion and achieving the first real-time stable isotope ratio measurements.

Currently, I'm working on the photonics biosensing platform for protein analysis. This technology aims to transform how protein misfolding is monitored, providing earlier and more reliable Alzheimer's diagnoses.

I’m excited to welcome collaborators to join me on this journey. 

Find me on LinkedIn: click here

 


Member of research group / centre


CV

EDUCATION
2015 – 2018
Ph.D. in Quantum Electronics
Project:
Laser modification of porous glass: physical and technological fundamentals and applications

2013 – 2015
MS in Laser technologies
Project:
Laser micro-plasma for micro-optical elements fabrication

2009 – 2013
BS Technical Physics
Project:
Laser-induced internal modification of porous glass


Teknologibygget Tromsø 3.044


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