
Quantum chemistry, molecular dynamics and molecular mechanics calculations (consultations, calculations, research with the legal programmes on a supercomputer)
Quantum chemistry and molecular mechanics calculations, using Gamess, NwChem, Dalton, Gausian09, Amber12, Crystal, VASP software. Consultations on using the applied programmes on a supercomputer.
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Support and consulting on using OAC compilers, debugging and compiling programmes, testing, consultations
Support and consultations on using OAC compilers, debugging programmes. PGI and Intel compilers, MPI and OpenMP programming systems.le. Consultations on using the applied programmes on a supercomputer.
Read moreMatlab calculations (consultations on work with applied programmes on a supercomputer)
Matlab calculations using Matlab packages (MATLAB, Simulink, Parallel Computing Toolbox, Symbolic Math Toolbox) in Linux environment, utilising up to 224 computing cores. Consultations on work with applied programmes on a supercomputer.
Read moreMeasurements of ionization potentials and HOMO energy levels using cyclic voltammetry method
Cyclic voltammetry is dynamic potentiostatic tool for analysis of electrochemical reactions in solution. Principle of the method: changing potential of one of the electrodes in the three electrode system the relative current is measured.
Read moreDetermination of the concentration at which fluorescence quenching starts
Research of fluorescence quenching of organic compounds by incorporating molecules into polystyrene matrix of different weight percentages and measuring optical properties such as fluorescence spectra, fluorescence quantum yield and lifetime.
Read moreExciton diffusion coefficient and diffusion length determination in organic compounds
Exciton diffusion coefficient and diffusion length is determined by measuring fluorescence transients of samples with different concentration of fluorescence quencher (PCBM-fullerene derivative) and performing Monte Carlo simulation of 3D exciton diffusion in the investigating medium with a randomly distributed fluorescence quenchers.
Read moreExpert consultation of technological companies on issues related to synthesis and characterization of organic compounds
Application. Expert consultation of technological companies on issues related to synthesis and characterization of organic compounds would help to find new chemical routes for the synthesis of new materials with preferable photophysical properties in the shortest time.
Read moreSample preparation for optical measurements
Preparation of films and solutions of organic compounds for optical measurements. Spin-coating of films from solutions. Weighing of materials and preparation of solutions with preferable concentration. Cleaning of substrates with UV-ozone, plasma, organic solvents.
Read moreSpatial chemical composition analysis with energy dispersive X-ray spectrometer
Spatial chemical composition analysis of solid state samples with energy dispersive X-ray spectrometer (EDX/EDS) of a scanning electron microscope (EMS) CamScan Apollo 300. Mapping of spatial distribution of chemical elements on the surface of the investigated sample.
Read moreElectron beam induced current measurements (EBIC)
Invesitigation of carrier diffusion length, spatial distribution of defects by GATAN SmartEBIC equipment. The equipment is designed for investigating the electrical properties of semiconductor materials and p-n junctures (measurement of diffusion distance distances, coupling, or surface electrical conductivity mapping).
Read moreThe combined examination of current and capacitance characteristics for control of junction structures and measurements of the main operational parameters
Computer controlled temperature scanner of the current-voltage and capacitance-voltage characteristics, produced at Vilnius University, measures in the range of 0 – 600 V bias voltage and of 100-300 K temperatures. The C-V characteristics are measured in the range of 10-2´106 Hz using small test signals (20-100 mV).
Read moreMeasurements of the barrier parameters in junction structures and devices made of Si, Ge, GaAs, GaN, Cu-CdS and Si solar-cells
Measurement are carried out by using the BELIV-VU instrument which consists of pulsed generator of the linearly increasing voltage of a type RIGOL DG1022, an oscilloscope of a type Agilent Technologies DS05032A and PCB for sample mounting.
Read moreTemperature and spectral scans of the barrier parameters in junction structures and devices made of Si, Ge, GaAs, GaN, Cu-CdS and Si solar-cells
These measurements are addressed to control of spatial, spectral and temperature changes of the barrier parameters in junction structures due to doping and formation of technological as well as heat treatment defects.
Read moreMeasurements of carrier lifetime and its lateral as well as depth distribution in semiconductor materials
Determination of carrier lifetime in semiconductor materials. Lifetime measurement up to 1 ns, microwave response sensitivity ~ 0.5 mV. One sample at a time. Computer controlled measurements.
Read moreMeasurements of carrier lifetime and its temperature as well as bias illumination dependent variations
The microwave probed photoconductivity transients are recorded under temperature and bias illumination changes. Alternatively, carrier lifetime variations n-situ during irradiation of high energy particles are examined.
Read moreSpatially-resolved photoluminescence measurements by scanning near-field optical microscope (SNOM)
Scanning near-field optical microscope (SNOM) is used to study spatial distribution of photoluminescence. The SNOM probe with the aperture smaller than the wavelength is placed in contact with the sample.
Read moreMeasurements of luminescence under stationary and quasistationary conditions and with nanosecond time resolution in UV-VIS spectral region
The nanosecond luminescence spectroscopy setup is used for luminescence measurements in UV-VIS spectral regions. Luminescence measurements under stationary and quasi-stationary conditions, and with nanosecond time resolution in a spectral range of 180-850 nm can be performed using this setup.
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NMR and EPR spectrum registration and research
Application. Studies of organic molecular structure. Study of metastable defects in crystals. Identification of technological point defects and investigation of evolutionary heat treatments. Studies of Spin-labeled compounds, important in biomedical physics. Monitoring of free radicals and radioactive contamination.
Read moreAbsolute impedance spectrometry of dielectric and semi conductive passive elements
Application. Measurement of electric parameters of various radio circuits, passive and active components (e.g. capacitor capacity and loss tangent, suppression coefficient of coaxial cables, generator's signal generation level, etc.) in a frequency range from 10 μHz to 40 GHz. Determination of electrical parameters of various materials in a frequency range from 10 μHz to 3 THz.
Read moreRecording and research of absorption in wide spectral range (UV-FIR), Raman scattering spectra and chemical image of the surfaces
1. Recording of permeability (absorption) spectra of liquid samples in the UV-NIR range and qualitative and quantitative spectral analysis of such samples. Determination of reflection coefficients of mirror surfaces in the UV-NIR range.
Read moreEvaluation of total surface roughness of different optical elements designed for 1064 nm, 532 nm and 355 nm laser radiation from scattering measurements
The measurements are performed using the total integrated scattering measurement station with an Ekspla NL202 nanosecond laser. Scatter is measured in relation to the OceanOptics standard.
Read moreMeasurements with the laser-induced damage threshold (LIDT) test station No.2
A laser source is needed for the measurements. The LIDT station can be used at a laser pulse repetition rate from 1 Hz to 10 kHz. Measurements can be performed for laser radiation of 760 – 840 nm, 380 - 420 nm wavelengths. Automated positioning of the sample in X and Y directions in the target plane (range of positioning ≥ 70 mm).
Read moreMeasurements of the laser-induced damage threshold of optical elements with the nanosecond diode-pumped Nd:YAG laser
Measurements are performed with the laser-induced damage threshold (LIDT) test station, nanosecond Nd:YAG laser with single longitudinal mode and the equipment set for measuring laser radiation temporal, spatial and energetic parameters.
Read moreQuantitative and qualitative analysis of organic compounds using gas chromatography-mass spectrometry method
Identification of various organic compounds and determination of concentration in environmental, biomedical and other objects.
Application. Preparation of samples for analysis, analysis, interpretation of data, consultations.
Read moreVolume visualization of marked cells and other transparent objects
Visualization of cells and other biological objects with a laser scanning confocal microscope, consisting of: an inverted microscope of an infinite tubular optic system; 100 W halogen lamp for illumination; FV10i - W, Olympus.
Read moreSurface analysis with scanning electrochemical microscope
Research of surface electrochemical properties using scanning electrochemistry-microscopy equipment SECM-030, SENSOLYTICS (Germany), which consists of: atomic force (and / or tunneling) microscopy and electrochemical process control instruments.
Read moreFour point probe resistance measurements
Sheet resistance and bulk resistance measurements by four point probe method and determination of the type of conductivity of the sample. A wide range of parameters and the abscence of contact resistance ensures accurate results and simplifies the measurement procedure.
Read moreMass spectrometric proteome analysis (protein identification by peptide mass spectrometry (MS/MS); searching and identification of protein modifications; peptide sequence determination (sequencing) de novo; determination of protein molecular weight)
Protein identification by mass spectrometry,Identification of protein posttranslational modifications,De novo peptide sequencing,Identification of protein molecular weight.
Read moreProtein analysis. Determination of molecular mass
Liquid chromatography mass detector Agilent 6410 Triple Quadrupole. The new generation of the device, allowing an initial effective biomolecules and synthetic organic compounds characterization analysis of chromatographic and capillary electrophoresis.
Read moreCharacterisation of prooxidative or antioxaditave features of redox active medicals, environmental pollutants and food supplements (chinones, nitroaromatic formations, polyphenols)
Tiriama redoks aktyvių junginių oksidacijos arba redukcijos kinetika fermentais, redoks baltymais, arba modeliniais organiniais ir neorganiniais reagentais. Taip pat tiriami jų fotoindukuoti virsmai.
Read moreMeasurements and research with high intensity facility
The whole or a part of facility can be used (depending on the kind of study). Facility consists of:
1) Light Conversion femtosecond Yb:KGW oscillator with amplifier Pharos. 6W average power diode-pumped high repetition rate femtosecond Yb:KGW laser. Maximum repetition rate is 200 kHz. Central wavelength 1030 nm, pulse duration 300 fs.
Detection of 1 nm - 310 nm radiation
Service is performed using the XUV detection set, which consists of: 1) UV detection and registration system. Spectral range is 1-310 nm, resolution 0.1 nm. 2) Vacuum chamber with a pump. Inner chamber dimensions are 610×810×175 mm. The pressure is maintained in the 1x10-7 - 1000 mbar range.
Read moreUltrafast spectroscopy research: femtosecond multi - pulse absorption spectroscopy
The equipment set consists of: 1) Regenerative Ti:sapphire amplifier of femtosecond pulses with 30W solid-state pump laser Libra-USP-HE and unique set of spectroscopy equipment and diagnostic. Central wavelength of the amplified pulses is 800 nm, maximum pulse repetition rate 1 kHz, pulse duration < 50 fs. Pulse energy at 1 kHz repetition rate is > 3.5 mJ. It has an option of switchover between 505 fs pulse and 11010 fs pulse amplification modes.
Read moreUltrashort pulses investigation with nonlinear methods
Measurement are performed using Spectra Physics Ti:sapphire femtosecond system with noncollinear parametric amplifier, ultrashort pulses IR radiation source, high dynamic range Andor CCD camera, pulses duration meter Grenouille and unique set of diagnostic for space -time and spectral characteristics.
Read moreLaser nanophotonics research and services using femtosecond laser system Pharos
Research and services are carried out by using:
1. Light conversion femtosecond laser system Pharos. 6W average power diode-pumped high repetition rate femtosecond Yb:KGW laser. Maximum repetition rate is 200 kHz. Central wavelength 1030 nm, pulse duration 300 fs, pulse energy to 0.4 mJ.
Measurements and research using femtosecond Ti:sapphire laser complex
The whole or a part of facility can be used (depending on the kind of study). Facility consists of: 1) Femtosecond Ti:sapphire laser system. The system generates radiation of 800 nm central wavelength. Pulse energy at 1kHz repetition rate is 10 mJ. Duration of pulse is ̴ 40 fs.
Read moreConsulting on business start-up and development issues
Feasibility analysis in business start-ups, advantages and disadvantages;
Planning business enterprise, business plan;
Financial business development plan;
Evaluation of particular product development (service, product) for the enterprise.
Read moreConsulting on business competitiveness issues
The evaluation of external environment factors on impact towards company‘s activities, according to influencing factors on evaluation weight and significance;
The emphasis of external barriers which would stop company’s development and progress; the identification of environment changes damaging company’s activities;
Read moreApplication of the methods of management accounting (cost management, budgets management and control, evaluation of investment projects and efficiency of activity, etc.) in enterprises and organizations
Consultations, instructions, application of the methods of management accounting (cost management, budgets management and control, evaluation of investment projects and efficiency of activity, etc.) in enterprises and organizations.
Read moreIdentification of companies‘ problematic areas
Analysis of company's financial, taxation processes and operative activities in order to determine the company's problematic areas and potential threats. We make proposals how to solve problems, how much does it cost and we estimate how it effects the results of a company‘s activities.
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Super-Resolution Imaging Facility
Super-resolution imaging facility has recently acquired a Leica TCS SP8 confocal scanning microscope, equipped with motorized xy-stage 12 kHz tandem scanner, field of view scanner, gated HyD™ detection system, white light laser as well as LIGHTNING, FALCON and STED 3x modules.
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