Advisors: dr Tomasz Jakubczyk & Nilesh Dalla, MSc

Proposed topics of the internship:
Open tunable optical microcavities, single-photon emitters, finesse, Q factor of a microcavity

More information
List of publications: Tomasz Jakubczyk
Homepage: https://www.fuw.edu.pl/~tojaku/
Laboratory website: http://lumnp.fuw.edu.pl/?lang=en

Advisors: dr Michał Karpiński & Ali Golestani, MSc

Proposed topics of the internship:
Experiments and/or numerical modelling for quantum temporal optics
You will work in a modern quantum optical laboratory, where we study the encoding of quantum information in the time-frequency degree of freedom of light. We work with pulsed fs and ps lasers, photon-pair sources, single-photon detectors, single-photon spectrometers, free-space, and fiber optics. Within the internship you may construct a new part of our experimental apparatus or add new functionality to an existing one – for example: build or modify an entangled photon pair source, an automated delay line, an interferometer, a tunable spectrum filter, a fiber examining bench. We also offer projects based on numerical simulation of quantum or nonlinear optical phenomena. You could also work on a set of 3D printed optomechanical elements and characterize their performance with the goal of lowering the access threshold to the experimental optics for students from developing countries. The result of your work will most likely be incorporated into one of our research projects.

More information
Laboratory website: http://photon.fuw.edu.pl

Advisors: prof. dr hab. Piotr Kossacki & dr hab. Jacek Kasprzak

Proposed topic of the internship:
The intern will participate in building the experimental setup for four-wave-mixing spectroscopy of the nanostructures.

More information
List of publications: Piotr Kossacki, Jacek Kasprzak
Laboratory website: http://lumnp.fuw.edu.pl/?lang=en

Advisors: dr hab. Jan Suffczyński & mgr Tomasz Fąs

Proposed topics of the internship:
1. Subwavelength diffraction gratings for lasing semiconductor structures

Subwavelength optics explores the interaction of light with objects smaller than its wavelength. An example of such objects is the subwavelength diffraction grating consisting of dielectric stripes arranged periodically in the form of a one-dimensional structure. The aim of the research will be to use the optical modes of the subwavelength diffraction grating to enhance emissions from semiconductor layers such as transition metal dichalcogens or perovskites.

2. Raman scattering studies of the layered antiferromagnets
Raman scattering measurements allow to obtain a lot of data about the properties of the tested material. The aim of the research will be to use Raman spectroscopy to obtain infromation about the magnetic structure and phase transitions in antiferromagnetic layered and volumetric materials.

More information
List of publications: Jan Suffczyński
Homepage: https://www.fuw.edu.pl/~jass/
Laboratory website: http://lumnp.fuw.edu.pl/?lang=en

Advisors: dr hab. Michał Tomza, prof. UW & member of the Quantum Molecular Systems group

Proposed topics of the internship:
Theory of ultracold atom, ultracold molecules, ultracold collisions, quantum dynamics, quantum simulation, molecular electronic structure

More information
Group website: http://quantmol.uw.edu.pl/

Advisors: prof. dr hab. Andrzej Wysmołek & dr Johannes Binder

Proposed topic of the internship:
The topic of the internship will be the study of photonic structures made with the use of hexagonal boron nitride grown in our laboratory. The Intern will learn the MOVPE technology and various methods of characterization of semiconductor nanostructures such as: Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), photoluminescence and other optical methods.

Publications
1. “Heteroepitaxial Growth of High Optical Quality, Wafer-Scale van der Waals Heterostrucutres”, K. Ludwiczak et al. ACS Applied Materials & Interfaces, 13, 47904-47911, (2021)
2. “Suspended graphene on germanium: selective local etching via laser-induced photocorrosion of germanium”, J. Binder et al. 2D Materials 8 035043 (2021)
3. “Two stage epitaxial growth of wafer-size multilayer h-BN by metal-organic vapor phase epitaxy – a homoepitaxial approach“, A. K Dąbrowska et al. 2D Materials 8, 015017 (2020)
4. “Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures”, J. Binder et al. Nature Communications 10, 2335 (2019),