Laboratory of Laser Technologies
The laboratory carries out research by means of Raman spectroscopy on solid, liquid and gaseous samples. It provides analysis at various temperatures and pressures, applicable in materials science, physics, chemistry, biology and cultural heritage.
Description of Activities
Description of Services
Measurement of Raman spectra with an argon (Ar) laser
Detailed description of the service: The study is carried out using an Ar laser (wavelength 515, 488 or 458 nm), a high-pressure optical cell and a microcryostat. The equipment enables studies of the Raman spectra of liquids, powder and crystalline samples, as well as measurements at high pressure up to 30 GPa and in the temperature range 77 K – 500 K.
| Services offered | Price in EUR * |
| Measurement of an unpolarised Raman spectrum with a He-Ne laser (wavelength 633 nm) of a powder or crystalline sample at a fixed point on the specimen | 79 |
| Measurement of a polarised Raman spectrum with a He-Ne laser (wavelength 633 nm) of a crystalline sample at a fixed point on the specimen | 79 |
| Measurement of a Raman spectrum with a He-Ne laser (wavelength 633 nm) of a sample over a large rectangular area (Raman mapping) | 79 |
| Measurement of a Raman spectrum of liquids with a He-Ne laser (wavelength 633 nm) | 79 |
| Measurement of an unpolarised Raman spectrum with an Ar laser (wavelength 515, 488 or 458 nm) of a powder or crystalline sample at a fixed point on the specimen | 79 |
| Measurement of a polarised Raman spectrum with an Ar laser (wavelength 515, 488 or 458 nm) of a powder or crystalline sample at a fixed point on the specimen | 79 |
| Measurement of a Raman spectrum with an Ar laser (wavelength 515, 488 or 458 nm) of a sample over a large rectangular area (Raman mapping) | 79 |
| Measurement of a Raman spectrum of liquids with an Ar laser (wavelength 515, 488 or 458 nm) | 79 |
| Measurement of a Raman spectrum at high pressure up to 30 GPa | 79 |
| Measurement of a Raman spectrum in the temperature range 77 K – 500 K | 79 |
| Data interpretation | 24 |
* The prices indicated are approximate and depend on the scope of the research. They include VAT at the rate of 20%.
Equipment
Raman spectroscopy, a non-destructive and non-contact method, is widely used in various fields such as physics, chemistry, geology, mineralogy, biology, pharmacy and forensic science, as well as in modern materials science – in the study of carbon nanotubes, graphene, diamond-like coatings, polymers, semiconductors, high-temperature superconductors and many others. Raman spectroscopy makes it possible to study:
- carbon materials (graphene and nanotubes);
- transition metal oxides;
- minerals;
- biophysical samples;
- materials for catalysis;
- materials with interesting magnetic properties;
- nano-objects;
- semiconductors;
- objects of archaeological and artistic value.
Contacts
Head: Prof. Miroslav Abrashev, mvabr@phys.uni-sofia.bg
Access to the Laboratory of Laser Technologies
The Laboratory of Laser Technologies is part of the research infrastructure of the National Centre of Excellence “Mechatronics and Clean Technologies” and is located on the Lozenets campus. Requests for access and for joint research are therefore processed centrally – see Contacts. In addition, a full overview of the Centre’s other laboratories is available on the Infrastructure and Laboratories page.
The laser technology equipment was established under project BG16RFPR002-1.014-0006, funded by the Research, Innovation and Digitalisation for Smart Transformation Programme 2021–2027, co-financed by the European Union through the European Regional Development Fund.