Prof. Ivan Buchvarov Profile

Prof. Ivan Buchvarov

Associate Professor at Sofia Univ "St Kliment Ohridski"

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Author

Publications (19)

Proceedings Article | 30 December 2019 Paper

Laser-induced break down spectroscopy for quantitative analysis of electrolytes (Na, K, Ca, Mg) in human blood serum

Krum Bardarov, Ivan Buchvarov, Tanya Yordanova, Peter Georgiev

Proceedings Volume 11332, 113320A (2019) https://doi.org/10.1117/12.2552209

KEYWORDS: Sodium, Laser induced breakdown spectroscopy, Calcium, Magnesium, Blood, Statistical analysis, Calibration, Chemical elements, Liquids, Laser spectroscopy

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Proceedings Article | 17 February 2017 Paper

Continuous wave operation of Nd:CaYAlO4 and Nd:ScYSiO5 lasers with hot band diode-pumping

T. Waritanant, V. Aleksandrov, J. Xu, X. Xu, I. Buchvarov, A. Major

Proceedings Volume 10082, 100821S (2017) https://doi.org/10.1117/12.2249948

KEYWORDS: Neodymium lasers, Absorption, Continuous wave operation, Neodymium, Solid state lasers, Solid state physics, High power lasers, Thermal effects, Laser crystals, Output couplers, Fiber lasers, Physics

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Proceedings Article | 5 January 2017 Paper

Morphological characterization of chitosan biopolymer thin films modified via fs irradiation and its potential application as functional surfaces in regenerative medicine

A. Daskalova, I. Bliznakova, A. Trifonov, I. Buchvarov, C. Nathala, W. Husinsky

Proceedings Volume 10226, 1022607 (2017) https://doi.org/10.1117/12.2262679

KEYWORDS: Biopolymers, Regenerative medicine, Thin films, Femtosecond phenomena, Laser ablation, Laser damage threshold, Pulsed laser operation, Matrices, Scanning electron microscopy, Laser systems engineering

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Proceedings Article | 4 March 2014 Paper

Efficient tissue ablation using a laser tunable in the water absorption band at 3 microns with little collateral damage

Alexandra Nierlich, Danail Chuchumishev, Elizabeth Nagel, Kristiana Marinova, Stanislav Philipov, Torsten Fiebig, Ivan Buchvarov, Claus-Peter Richter

Proceedings Volume 8926, 89262H (2014) https://doi.org/10.1117/12.2049339

KEYWORDS: Laser ablation, Tissues, Laser tissue interaction, Laser dentistry, Cartilage, Tunable lasers, Skin, Absorption, Optical filters, Near infrared

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Proceedings Article | 15 February 2012 Paper

Sub-nanosecond, 1-kHz, low-threshold, non-critical OPO based on periodically-poled KTP crystal pumped at 1064 nm

Georgi Marchev, Valentin Petrov, Aleksey Tyazhev, Valdas Pasiskevicius, Nicky Thilmann, Fredrik Laurell, Ivan Buchvarov

Proceedings Volume 8240, 82400D (2012) https://doi.org/10.1117/12.907360

KEYWORDS: Optical parametric oscillators, Crystals, Quantum efficiency, Nonlinear crystals, Energy efficiency, Ferroelectric materials, Nonlinear optics, Mirrors, Amplifiers, Power meters

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Proceedings Article | 15 February 2012 Paper

1.34 μm Nd:YVO4 laser mode-locked by a single-walled carbon nanotube saturable absorber

Hristo Iliev, Ivan Buchvarov, Sun Young Choi, Kihong Kim, Fabian Rotermund, Valentin Petrov

Proceedings Volume 8235, 82350I (2012) https://doi.org/10.1117/12.907267

KEYWORDS: Mode locking, Neodymium lasers, Picosecond phenomena, Pulsed laser operation, Semiconductor lasers, Mirrors, Reflectivity, Single walled carbon nanotubes, Absorption, Diodes

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Proceedings Article | 16 February 2011 Paper

Steady state mode-locking of the Nd:YVO4 laser operating on the 1.34 µm transition using intracavity SHG in BIBO or PPMgSLT

Hristo Iliev, Ivan Buchvarov, Veselin Alexandrov, Sunao Kurimura, Valentin Petrov

Proceedings Volume 7912, 79120T (2011) https://doi.org/10.1117/12.879179

KEYWORDS: Mode locking, Neodymium lasers, Picosecond phenomena, Second-harmonic generation, Nonlinear crystals, Crystals, Semiconductor lasers, Mirrors, Laser resonators, Continuous wave operation

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Proceedings Article | 13 February 2008 Paper

The application of the monoclinic BiB3O6 nonlinear crystal in ultrafast laser technology

Valentin Petrov, Alexander Gaydardzhiev, Ivailo Nikolov, Ivan Buchvarov, Pancho Tzankov, Frank Noack

Proceedings Volume 6875, 68750X (2008) https://doi.org/10.1117/12.761019

KEYWORDS: Crystals, Nonlinear crystals, Second-harmonic generation, Femtosecond phenomena, Dispersion, Terahertz radiation, Laser crystals, Laser applications, Spectroscopy, Indium gallium arsenide

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Proceedings Article | 5 March 2007 Paper

Nonlinear X2 and X3 spectroscopy of magnesium sulfite hexahydrate single crystal

L. Pavlov, G. Hadjichristov, S. Ts. Lazarov, V. Kovachev, Z. Bunzarov, I. Buchvarov, I. Nikolov, M. Iliev

Proceedings Volume 6604, 66041P (2007) https://doi.org/10.1117/12.727121

KEYWORDS: Crystals, Nonlinear optics, Second-harmonic generation, Nonlinear crystals, Magnesium, Nd:YAG lasers, Laser crystals, Raman spectroscopy, Spectroscopy, Four wave mixing

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Proceedings Article | 14 February 2007 Paper

Optical parametric generation of high-energy femtosecond pulses in the 1-3 µm spectral range using BiB3O6

Valentin Petrov, Masood Ghotbi, Pancho Tzankov, Frank Noack, Ivailo Nikolov, Ivan Buchvarov, Majid Ebrahim-Zadeh

Proceedings Volume 6455, 64550C (2007) https://doi.org/10.1117/12.700094

KEYWORDS: Crystals, Femtosecond phenomena, Nonlinear crystals, Optical amplifiers, Energy efficiency, Dispersion, Polarization, Prisms, Nonlinear optics, Gaussian pulse

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Proceedings Article | 3 June 2005 Paper

Temperature dependent solvation dynamics of electrons after one-photon detachment in aqueous iodide

H. Iglev, A. Trifonov, I. Buchvarov, T. Fiebig, A. Laubereau

Proceedings Volume 5826, (2005) https://doi.org/10.1117/12.605137

KEYWORDS: Electrons, Absorption, Picosecond phenomena, Temperature metrology, Chemical species, Diffusion, Data modeling, Quantum efficiency, Molecules, Halogens

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Proceedings Article | 4 November 2003 Paper

Cavity design for diode end-pumped passive mode-locked solid state laser

Ivaylo Nikolov, Tenio Popmintchev, Ivan Buchvarov, Anton Trifonov

Proceedings Volume 5226, (2003) https://doi.org/10.1117/12.518953

KEYWORDS: Resonators, Mode locking, Mirrors, Solid state lasers, Laser resonators, Diodes, Diode pumped solid state lasers, Thermal effects, Nd:YAG lasers, Semiconductor lasers

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Proceedings Article | 9 April 2001 Paper

Passive mode-locking and pulse-shortening capabilities of frequency doubling polarization mirror

N. Nikolov, T. Popmintchev, Ivan Buchvarov, Solomon Saltiel

Proceedings Volume 4397, (2001) https://doi.org/10.1117/12.425180

KEYWORDS: Second-harmonic generation, Nonlinear crystals, Mirrors, Dielectric polarization, Crystals, Polarizers, Phase shifts, Mode locking, Birefringence, Wave plates

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Proceedings Article | 9 April 2001 Paper

New method for laser giant pulsing by type II intracavity frequency doubling

Ivan Buchvarov, N. Nikolov

Proceedings Volume 4397, (2001) https://doi.org/10.1117/12.425169

KEYWORDS: Second-harmonic generation, Nonlinear crystals, Phase shifts, Crystals, Polarizers, Mirrors, Q switching, Polarization, Q switches, Pulsed laser operation

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Proceedings Article | 9 April 2001 Paper

Laser restoration of ceramic artifacts with archeological value

I. Nikolov, T. Popmintchev, T. Todorova, Ivan Buchvarov, M. Surtchev, S. Tzaneva

Proceedings Volume 4397, (2001) https://doi.org/10.1117/12.425162

KEYWORDS: Ceramics, Fungi, Nd:YAG lasers, Laser ablation, Laser processing, X-rays, Q switching, Laser scattering, Q switched lasers, Surface finishing

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Proceedings Article | 9 April 2001 Paper

High-power Nd:YAG laser with variable reflectivity mirrors

I. Nikolov, Ivan Buchvarov, L. Gubanova, Eduard Putilin

Proceedings Volume 4397, (2001) https://doi.org/10.1117/12.425158

KEYWORDS: Resonators, Mirrors, Reflectivity, Nd:YAG lasers, Diffraction, High power lasers, Laser resonators, Output couplers, Dielectric mirrors, Energy efficiency

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Proceedings Article | 27 December 1996 Paper

Analytical description of the process of nonlinear phase shift due to cascade second-order processes

Ivan Buchvarov, Solomon Saltiel, Christo Iglev, Kaloyan Koynov, Pancho Tzankov

Proceedings Volume 3052, (1996) https://doi.org/10.1117/12.262921

KEYWORDS: Second-harmonic generation, Phase shifts, Nonlinear crystals, Crystals, Polarization, Harmonic generation, Analytical research, Solids, Nonlinear optics, Polarizers

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Proceedings Article | 11 April 1996 Paper

Simultaneous shaping and shortening of nanosecond pulses

Ivan Buchvarov, Aleksander Dreischuh, A. Iliev, Stoyan Dinev, Solomon Saltiel

Proceedings Volume 2772, (1996) https://doi.org/10.1117/12.238094

KEYWORDS: Laser beam diagnostics, Sensors, Nd:YAG lasers, Spatial filters, Photodiodes, Numerical simulations, Beam shaping, Q switched lasers, Ultrafast phenomena, Picosecond phenomena

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Proceedings Article | 30 November 1992 Paper

Passive feedback control of actively mode-locked pulsed Nd:YAG laser

Ivan Buchvarov, Solomon Saltiel

Proceedings Volume 1842, (1992) https://doi.org/10.1117/12.131865

KEYWORDS: Mirrors, Mode locking, Nonlinear crystals, Nd:YAG lasers, Second-harmonic generation, Feedback control, Crystals, Lamps, Reflectivity, Picosecond phenomena

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Showing 5 of 19 publications

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