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Article: Spin-lattice relaxation of (Cd,Mn)Te co-doped with Co ions

 The study investigates the effect of cobalt ion addition on the spin-lattice relaxation rate in the (Cd,Mn)Te system. Measurements using...

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SpectroCalc update

SpectroCalc is a project of mine that I have been developing since 2017. It is a free Android app designed by physicist for physicists, to make our...

Read more
Postdoc

Ladies and Gentleman, I am thrilled to announce that since the 1st of February, I have been a Postdoctoral Researcher at the Technical...

Read more
Article: Single vanadium ion magnetic dopant in an individual CdTe/ZnTe quantum dot

 The application of quantum technologies such as spintronics, solotronics, and quantum computing is highly promising when it comes to...

Read more
Article: Carrier localization in defected areas of (Cd, Mn)Te quantum well investigated via Optically Detected Magnetic Resonance employed in the microscale

 The object of examination is the effect of carrier localization on three properties sensitive to carrier gas density at the micrometer scale:...

Read more
Article: Spin-lattice relaxation of (Cd,Mn)Te co-doped with Co ions

 The study investigates the effect of cobalt ion addition on the spin-lattice relaxation rate in the (Cd,Mn)Te system. Measurements using...

Read more
SpectroCalc update

SpectroCalc is a project of mine that I have been developing since 2017. It is a free Android app designed by physicist for physicists, to make our...

Read more
Postdoc

Ladies and Gentleman, I am thrilled to announce that since the 1st of February, I have been a Postdoctoral Researcher at the Technical...

Read more
Article: Single vanadium ion magnetic dopant in an individual CdTe/ZnTe quantum dot

 The application of quantum technologies such as spintronics, solotronics, and quantum computing is highly promising when it comes to...

Read more
Article: Carrier localization in defected areas of (Cd, Mn)Te quantum well investigated via Optically Detected Magnetic Resonance employed in the microscale

 The object of examination is the effect of carrier localization on three properties sensitive to carrier gas density at the micrometer scale:...

Read more
Article: Spin-lattice relaxation of (Cd,Mn)Te co-doped with Co ions

 The study investigates the effect of cobalt ion addition on the spin-lattice relaxation rate in the (Cd,Mn)Te system. Measurements using...

Read more

You can read my Ph. D. thesis here:

  • UW REPOSITORY

1.3.25

Article: Single vanadium ion magnetic dopant in an individual CdTe/ZnTe quantum dot

 The application of quantum technologies such as spintronics, solotronics, and quantum computing is highly promising when it comes to miniaturization in modern technology. In order to achieve effective devices, there is a need to investigate the spin properties of impurity interacting with the semiconductor lattice and confined carriers. Epitaxial...
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on 1.3.25
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7.1.25

Article: Carrier localization in defected areas of (Cd, Mn)Te quantum well investigated via Optically Detected Magnetic Resonance employed in the microscale

 The object of examination is the effect of carrier localization on three properties sensitive to carrier gas density at the micrometer scale: the oscillator strength of charged excitons, local free carrier conductivity, and the Knight shift. The latter two are measured through a micrometer-scale, spatially resolved optically detected magnetic...
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on 7.1.25
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7.1.25

Article: Spin-lattice relaxation of (Cd,Mn)Te co-doped with Co ions

 The study investigates the effect of cobalt ion addition on the spin-lattice relaxation rate in the (Cd,Mn)Te system. Measurements using time-resolved spectroscopy of single (Cd,Mn,Co)Te/(Cd,Mg)Te quantum wells under a magnetic field reveal that even a small cobalt admixture significantly reduces the Mn relaxation time. The results indicate that...
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on 7.1.25
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6.5.24

SpectroCalc update

SpectroCalc is a project of mine that I have been developing since 2017. It is a free Android app designed by physicist for physicists, to make our lives easier :)SpectroCalc is a tool that seamlessly converts between different units in spectroscopy. Whether you're analyzing a spectrum and need to know the equivalent wavelength in energy (eV), or if...
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on 6.5.24
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1.5.24

Postdoc

Ladies and Gentleman, I am thrilled to announce that since the 1st of February, I have been a Postdoctoral Researcher at the Technical University of Denmark! The project that stole my heart is QPIC1550, which is focused on integrating quantum light sources like single-photon emitters and detectors with photonic integrated circuits (PICs). This...
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on 1.5.24
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8.11.23

My Ph. D. Thesis

For a long time in the industry of electronics, the goal of increasing the efficiency of a device was as important as decreasing its size. The ultimate limit of miniaturization in semiconductor technology is a single atom device. However, for any potential application of a given system, it is necessary to have a fundamental understanding of its various...
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on 8.11.23
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17.5.23

Article: Coherent imaging and dynamics of excitons in MoSe2 monolayers epitaxially grown on hexagonal boron nitride

The technology of preparing heterostructures made of semiconducting transition metal dichalcogenides (TMDs) is based on the exfoliation of thin films from van der Waals bulk crystals. While the nonscalability of the exfoliation top-down approach is not an issue in the fundamental research, for which the proof-of-principle demonstrations are essential,...
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on 17.5.23
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Karolina Ewa Połczyńska

K. E. Połczyńska
Ph. D. in Physics. MBE grower. Quantum dot's enthusiast specialized in solotronics.

Check out my work

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My free android app

SpectroCalc
Introducing SpectroCalc: your go-to tool for seamlessly converting between different units in spectroscopy! Whether you're analyzing a spectrum and need to know the equivalent wavelength in energy (eV), or if you're in a lecture and the presenter is using wavenumbers (1/cm) but you prefer to think in nanometers, SpectroCalc has got you covered!

Ph. D. thesis

Ph. D. thesis

Twitter

Finally, the thesis has been submitted, and all exams have been successfully completed. Now awaiting the reviews... Exciting times as the day of defense approaches this autumn! Fingers crossed for a positive outcome. Enjoy the attached cover below! pic.twitter.com/ByoZmYADjf

— Karolina Połczyńska (@kepolczynska) July 7, 2023

Web of Science

Web of Science ResearcherID
Karolina Ewa Polczynska
RID: AEE-3218-2022
Faculty of Physics, University of Warsaw

Most cited publications:

1. Narrow Excitonic Lines and Large-Scale Homogeneity of Transition-Metal Dichalcogenide Monolayers Grown by Molecular Beam Epitaxy on Hexagonal Boron Nitride

Times Cited: 53 (Web of Science Core Collection®)


2. Local field effects in ultrafast light-matter interaction measured by pump-probe spectroscopy of monolayer MoSe2

Times Cited: 9 (Web of Science Core Collection®)


3. Angle-resolved optically detected magnetic resonance as a tool for strain determination in nanostructures

Times Cited: 4 (Web of Science Core Collection®)


View Karolina's complete profile on the Web of Science
Follow @kepolczynska

Ph. D. Students Council

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  • My Ph. D. Thesis
    For a long time in the industry of electronics, the goal of increasing the efficiency of a device was as important as decreasing its size. T...

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Popular posts

  • My Ph. D. Thesis
    For a long time in the industry of electronics, the goal of increasing the efficiency of a device was as important as decreasing its size. T...
  • Postdoc
    Ladies and Gentleman,  I am thrilled to announce that since the 1st of February, I have been a Postdoctoral Researcher at the Technical Univ...
  • Article: Coherent imaging and dynamics of excitons in MoSe2 monolayers epitaxially grown on hexagonal boron nitride
    The technology of preparing heterostructures made of semiconducting transition metal dichalcogenides (TMDs) is based on the exfoliation of t...

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