Research Groups

Ultrafast Phenomena Lab

Ultrafast Phenomena Lab

Ultrafast Phenomena Lab, headed by prof. Czesław Radzewicz, is a multi-disciplinary group where generation, diagnostics and application of femtosecond laser pulses are studied. The research areas cover:

- nonlinear optical phenomena for applications in experimental quantum optics,

- development of sub-diffraction-limited fluorescence microscopy schemes, such as STED,

- femtochemistry – dynamics of organic molecules at the femtosecond time scale,

- femtosecond optical amplifiers (laser and parametric) up to multi-terawatt power scale,

- nonlinear optical interactions on surfaces,

- time and frequency metrology – development of the optical frequency comb for applications in optical atomic clocks,

- novel techniques of ultrashort laser pulse diagnostics,

- new sources of ultrashort laser pulses, fiber- and crystal-based.

People: prof. Czesław Radzewicz, Piotr Fita, Piotr Ciąćka, Piotr Kasprzycki, Joanna Oracz

Quantum Memories Laboratory

Quantum Memories Laboratory

Quantum Memories Laboratory was founded within the POIG Project "National Laboratory of Quantum Technologies" in 2010. We study fundamental physical limitations of multimode photon-atom interfaces based on Raman interactions in room-temperature atomic vapors. A state-of-the-art experimental setup allows to control scattering processes at a single photon level, with EMCCD camera for precise characterization of the quantum spatial properties of the light and specialized FPGA card to control the laser beams and react to photocounts in tens of nanoseconds. We work in close cooperation with the theory group and develop experiment-oriented full-3D models of the interactions, encompassing both quantum nature of the collective scattering and decoherence.

More at psi.fuw.edu.pl

People: Wojciech Wasilewski, Radosław Chrapkiewicz, Michał Dąbrowski, Michał Parniak, Adam Leszczyński

Laboratory of Molecular Structure and Dynamics

Laboratory of Molecular Structure and Dynamics

Laboratory of Molecular Structure and Dynamics follows two closely connected research topics. The first one is investigation of electronic structure of diatomic molecules by laser spectroscopy techniques. In particular, the method of polarisation labelling spectroscopy is employed with an emphasis on molecules and their electronic states important in cold matter experiments. The second one is the investigation of ultracold quantum matter. Presently a new experimental facility is under construction under the EU POIG programme "Physics at the foundations of new technologies" that will enable formation of ultracold molecules by photoassociation technique and studies of their properties, with possible applications to ultracold chemistry and quantum computing.

http://dimer.fuw.edu.pl

People: prof. Paweł Kowalczyk

LIDAR Laboratory

LIDAR Laboratory

Lidar Laboratory has been operating since 1995. Initially its basic equipment was a DIAL system. Around the year 2000 it was converted to a mobile, multispectral aerosol lidar based on Nd:YAG laser. The apparatus was accomplished recently by a three-wavelength micropulse lidar and a polarization lidar. Scientific activity is mainly focused on development of novel techniques of remote atmospheric aerosol investigation. Original methods of retrieval of aerosol distribution, solid state particles as well as aerosol particle size distribution were elaborated. Almost every year the laboratory is involved in field campaigns organized together with Institute of Geophysics. Recent experiments concern investigation of aerosol processes under convection clouds.

People: prof. Tadeusz Stacewicz

Laser Spectroscopy Laboratory

Laser Spectroscopy Laboratory

Laser Spectroscopy Laboratory continues a long tradition in this field of research in the Division of Optics. Recent activity is focused on development of ultrasensitive matter detection with Cavity Ring-Down Spectroscopy. Optoelectronic sensors of nitrogen dioxide with blue-violet laser diodes were designed and biut, reaching sensitivity higher than 5 ppb. Detection of fluorine and chlorine involves CRDS technique and microwave plasma methods - the fluorine and chlorine compounds are dissociated in the plasma which produces atoms in metastable levels; these are detected by CRDS. Forthcoming investigation will concern ultrasensitive detection of H2O molecules by absorption detection at vibronic transitions in the near infrared.

People: prof. Tadeusz Stacewicz

Photonic Nanostructure Facility (PNaF)

Photonic Nanostructure Facility (PNaF)

Photonic Nanostructure Facility was founded in 2010 within the POIG Project „Physics at the foundations of new technologies”. We focus on design, fabrication and characterization of micro- and nanostructures for potential applications in photonics, optoelectronics, telecommunications and analytical chemistry. 3D photolithography workstation is used for making waveguides, couplers, microresonators, lab-on-chip devices and components. Fiber pulling device has been designed to allow us tapering the optical fibers to a desired profiles. With optical and electron microscopes we characterize the optical and topographic properties of the devices at different scales. 3D photolithography combined with Liquid Crystal Elasometrs (LCEs) have led to demostration of miniature light-driven robots in micrometer and miilmeter length scales.

More at photonics.fuw.edu.pl

People: Piotr Wasylczyk, Michał Nawrot, Łukasz Zinkiewicz

Femtosecond infrared spectroscopy of aqueous polymer solutions

Femtosecond infrared spectroscopy of aqueous polymer solutions

In the frame of the project we are trying to understand intermolecular interactions in aqueous solutions of “smart” polymers. In these systems polymer chains undergo very fast conformational change in response to an external stimulus (eg. change in temperature or pH). As a result the macroscopic phase separation in those systems is observed. Using the femtosecond infrared spectroscopy we hope to observe early (of the order of picoseconds) stages of that type of phase transition.

People: Marcin Pastorczak

Biomedical Optics

Biomedical Optics

Research conducted by the Biomedical Optics Group covers different areas of photonic technology for medical and biological applications. The main area of interest includes different aspects of chemical and bio-chemical sensing based on integrated optics technology. The possible applications varies from optical detection of poisonous gases to multichannel Lab-on-a-Chip detection of biological markers.

People:

Quantum Photonics Laboratory

Quantum Photonics Laboratory

We investigate quantum properties of light and their use in communications and metrology. In particular we explore the use of temporal and spectral multiplexing techniques to enable creation of ultrafast quantum communications and metrology protocols as well as highly multimode quantum states of light. We are investigating photonics links for large-scale quantum networks. In our research we employ nonlinear optical techniques, including waveguided nonlinear optics as well as state-of-the art electro-optic modulation methods. Here's a link to the group website.

People: Michał Karpiński, Michał Jachura, Filip Sośnicki
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