A5069128693- Cultural Heritage Materials Analysis
- Laser-induced spectroscopy and plasma
- Building materials and conservation
- Analytical chemistry methods development
- Mineralogy and Gemology Studies
- Conservation Techniques and Studies
- Mercury impact and mitigation studies
- Quantum optics and atomic interactions
- Photochemistry and Electron Transfer Studies
- Laser Material Processing Techniques
- Random lasers and scattering media
- Semiconductor Lasers and Optical Devices
- Nonlinear Optical Materials Studies
- Ocular and Laser Science Research
- Orbital Angular Momentum in Optics
Georgi Nadjakov Institute of Solid State Physics
2016-2024
Bulgarian Academy of Sciences
2016-2024
Throughout history, ceramics have been the most abundant artifacts in archaeological discoveries. Within Neolithic period present-day Bulgaria, skilled artisans applied additional materials to decorate their pottery, evolving composition and application techniques such as painting or incrustation. This study is focused on investigation of white pigments used decorating Early Late pottery from Madzherito, Kaloyanovets, Hadzhidimitrovo—archaeological sites located Thracian Valley, Central...
In the presented work, a total of 60 bronze artefacts from prehistoric settlement Baley, Bulgaria were analyzed by means laser-induced breakdown spectroscopy (LIBS) and X-ray fluorescence (XRF). The archaeological finds excavated three levels, with time span 15th century BC to first half 11th BC. obtained analytical information was used for quantitative estimation amount tin, lead arsenic, which determine mechanical properties alloy manufacturing technology. Based on estimated quantities...
This report presents pilot research of archaeological pottery excavated in the Early-Neolithic settlement Chavdar located Pirdop-Zlatitsa field, Bulgaria (first half VI mill BC). The object investigation is a red-slipped ceramic fragment decorated on both sides with white paint. A multi-analytical approach including optical microscopy, laser-induced breakdown spectroscopy, X-ray fluorescence and Fourier-transform infrared spectroscopy was undertaken to obtain comprehensive information...
In this work, laser-induced breakdown spectroscopy was applied to determining the elemental composition of a set ancient bronze artefacts dated from Late Bronze Age and Early Iron (14th – 10th century BC). We used Nd:YAG laser at 1064 nm with pulse duration 10 ns energy mJ determined alloy that in manufacturing samples under study. The concentrations tin lead bulk examined materials estimated after generating calibration curves for four standard samples. preliminary results analysis will...
Laser-induced breakdown spectroscopy (LIBS) is an analytical technique for qualitative and quantitative elemental analysis of solids, liquids gases. In this work, the method was applied investigation archaeological bronze objects. The information obtained by LIBS used determination elements in material manufacturing objects under study. Quantitative chemical also performed after generating calibration curves with standard samples similar matrix composition. estimation concentration bulk...
In the present contribution, we report results from a study on ancient technology used to create decorative color plasters in Thracian tomb near village of Alexandrovo, Bulgaria. A series fragments red, black, grey, white and brown colored lime dromos funeral chamber were investigated by laser-induced breakdown spectroscopy, X-ray diffraction analysis, infrared paramagnetic electron resonance spectroscopy differential scanning calorimetry. Based combined analytical data, it was possible...
In the prehistoric period on Balkan Peninsula, technology of white decoration underwent a drastic change. At beginning Neolithic pigment was applied as paint polished surface. end epoch, paste inlaid in incised channels surfaces vessels. This study is focused identification mineral pigments used for and Chalcolithic pottery from territory Bulgaria. The aim this work to answer question whether composition varies according technique (paint inlay). A set 41 fragments 11 archaeological sites...
Abstract Laser-induced breakdown spectroscopy (LIBS) is a reliable, fast and micro-destructive diagnostic method for qualitative quantitative analysis of variety materials. In this paper, we report the results determination antimony in four archaeological bronze artefacts analyzed by means LIBS. For purpose study, an approach multi-elemental LIBS proposed, based on use element with known concentration as internal standard measurement spectral lines intensities unknown concentration. An...
The current work is a case study of ongoing in-depth extensive fundamental research on the plasma formation and relaxation dynamics in transparent media induced by mid- short-wavelength infrared laser pulses. experimental investigation performed 35 fs-laser system setup. working parameters such as energy number pulses are varied. measurements applied borosilicate glass samples doped with gold nanoparticles. effects their consequence laser-induced ablation damage thresholds investigated...
In the present work, we report on analysis of archaeological metal artefacts from Late Bronze Age, performed by means Laser Induced Breakdown Spectroscopy (LIBS). The experiment was carried out at ambient air and 1064 nm a Nd:YAG laser with pulse durations 10 ns energy mJ. analytical information obtained LIBS spectra used for qualitative determination elements in material manufacturing investigated objects. Quantitative estimation elemental concentration tin lead bulk samples done after...
The development of new materials for different optical applications is one the most important topics photonics industry. In present work we study properties a medium consisted an epoxy based polymer as matrix with dissolved binary solutions Rhodamine 6G and B. Detailed spectral dependence fluorescence has been performed. It was found that intensive follows dyes' transmission in interval 390 – 780 nm. medium's studied by means spectrofluorimeter FluoroLog 3-22. stimulated emission obtained...