Defended theses

Doctoral Thesis

Summary of written and defended Doctoral thesis in ISSP UL.

	Author	Title	Supervisor
2025	E. Ļetko	Lossy mode resonance phenomenon in photonic integrated circuits	Dr. sc.ing. Gatis Mozoļevskis
2025	A. Trausa	Probing metal and metal oxide nanowire physical properties using in situ microscopy nanomanipulation techniques	Dr. phys. Edgars Butanovs
2025	A. Knoks	Enhancement of photocatalytic properties of nanostructured TiO2 coating for degradation of pollutants	Dr. phys. Jānis Kleperis
2025	K. Kadiwala	Exploring Novel Synthesis Methods For Transition Metal Dichalcogenides and Investigating Their Properties	Dr. phys. Boriss Poļakovs
2025	J. Čipa	Integrated microfluidic device for rapid mixing and magnetic separation of prostate cancer extracellular vesicles	Dr. phys. Roberts Rimša
2025	H. Arslan	Mechanism of photochromism in yttrium oxyhydride and growth kinetics of yttrium oxide thin films	Dr. habil. phys. Juris Purāns, Dr. habil. phys. Smagul Karazhanov
2024	K. Laganovska	Defects and optical properties of undoped and rare-earth doped HfO2/ZrO2	PhD. Phys. Krišjānis Šmits
2024	K. Kaprāns	The study of transition metal oxide electrode materials for applications in lithium - ion batteries	Dr.chem. Gunārs Bajārs
2024	L. Jasulaņeca	On-chip nanoelectromechanical switches for operation at room and cryogenic temperatures	Prof. Dr. chem. Donats Erts
2023	A. Platoņenko	First principles modelling and characterization of radiation point defects in α-Al2O3 and MgAl2O4 crystals	Dr. rer. nat. Deniss Grjaznovs
2023	M. Ķemere	Luminescence and energy transfer of rare earth ions in co-doped oxyfluride glasses and glass-ceramics	Dr. habil. phys. Uldis Rogulis
2023	A. Česnokovs	The e ect of point defects and their local structure on the conductivity of wide-gap materials: cases of CeO2 and ZnO	Dr. Rer. Nat. Deniss Grjaznovs
2023	G. Doķe	Red and near infra-red persistent luminescence of transition metal activated germanate materials	Dr. phys. Anatolijs Šarakovskis
2022	J. Perveņecka	Investigation of optical properties and amplified spontaneous emissions of amorphous thin films forming organic compounds for possible applications in organic solid state lasers	Dr. phys. Aivars Vembris
2022	A. Ozols	Optimization of materials, design and production technology of multifocal liquid crystal diffuser for augmented reality displays	Dr. phys. Mārtiņš Rutkis
2022	I. Pudža	Impact of the local structure on the thermochromic properties of copper molybdate and its solid solutions	Dr. phys. Aleksejs Kuzmins
2021	A. Zolotarjovs	Optical properties of plasma electrolytic oxidation coatings on aluminium alloy surface	Dr. phys. Krisjanis Smits
2020	A. Bundulis	Inquiry of the Kerr effect origins in organic materials: experimental assessment by Z-scan method	Dr. phys. Mārtiņš Rutkis
	G. Krieķe	Erbium upconversion luminescence in transparent glass ceramics containing ternary fluoride nanocrystals	Dr. phys. Anatolijs Šarakovskis
	E. Butanovs	Synthesis and properties of nanowire and transition metal dichalcogenide core-shell heterostructures	Dr. phys. Boriss Poļakovs
	A. Gopejenko	First Principles Simulations on Yttrium and Oxygen Precipitation Inside Fcc-Fe Lattice	Dr. chem. Yuri Zhukovskii
2019	R. Grzibovskis	Requirements for energy level determination of organic materials using photoelectron yield spectroscopy and scanning Kelvin probe	Dr. phys. Aivars Vembris
	V. Vitola	Electronic excitations and processes in long lasting luminescence material SrAl2O4	Dr. phys. Krisjanis Smits
	K. Pudzs	Study of electrical and thermoelectrical properties of organic thin films with different morphology	Dr. phys. Aivars Vembris
2018	J. Mikelsone	Holographic recording and surface relief grating formation in azobenzene compounds	Dr. phys. Janis Teteris
	M. Zubkins	Development of transparent conducting ZnO based films deposition process and films characterization	Dr. habil. phys. Juris Purans
2017	G. Mozolevskis	Dielectric breakdown of high voltage liquid crystal displays	Prof. Dr. habil.phys. Arturs Medvids Dr. phys. Martins Rutkis
	A. Antuzevics	Local structure of s-state rare earth ions in fluorides and oxyfluoride glass ceramics	Prof. Dr. habil. phys. U. Rogulis
	L. Shirmane	Vacuum ultraviolet excitation spectroscopy of nanostructured complex oxide phosphors	Dr. phys. Vladimirs Pankratovs
2015	K. Jurasevska	Development of psychophysical pseudoisochromatic test and evaluation of color discrimination threshold	Prof. Dr. habil. phys. M. Ozolins
	E. Nitiss	Investigations of nonlinear optical organic glass waveguides and their applications	Dr. phys. M. Rutkis
	G. Kucinskis	The study of nanostructured bulk and thin film LiFePO4 cathode materials for lithium-ion batteries	Dr. chem. G. Bajars
	R. Zabels	Swift-ion-induced modifications of structure and micromechanical properties in wide-gap ionic crystals	Dr. habil. phys. J. Maniks
	U. Gertners	Photo induced surface modulation in amorphous chalcogenides	Dr. phys. J. Teteris
	J. Grube	Luminescence processes in Er3+ doped NaLaF4	Dr. habil. phys. M. Springis Dr. phys. A. Sarakovskis
	J. Latvels	Photoelectrical properties of innovative organic materials for solar cells	Dr. habil. sc. ing., profesore D. Blumberga Dr. habil. phys. I. Muzikante
	J. Timoshenko	Reverse Monte Carlo Modelling of Structural ond Thermal Disorder in Crystalline Materials	Dr. phys. A. Kuzmins
2014	A. Anspoks	Studies Of Local Structure Relaxation In Nanomaterials	Dr. phys. A. Kuzmins
	A. Voitkans	Structure and photophysical processes in 0D&1D InGaN composite materials	Prof. Dr. habil. phys. I. Tale
	M. Dunce	Phase transitions and physical properties of Na1/2Bi1/2TiO3-based solid solutions	Dr. habil. phys. A. Sternbergs
2013	I. Smeltere	Lead-free ferroelectric ceramics based on alkali niobates	Prof. Dr. habil. phys. M.Knite
2012	A. Vembris	Optical and optoelectrical properties of pyranyliden fragment containing dyes	Dr. habil. phys. I. Muzikante
	V. Korsaks	Luminescence processes in different structured boron nitride materials	Dr. habil. phy. B. Berzina
	V. Karitans	Influence of optical and neural factors on quality of the perceived image	Prof. Dr. habil. phys. M. Ozolins
	A. Kalinko	Interpretation of X-ray absorption spectra using molecular dynamics simulations	Dr. phys. A. Kuzmins
	D. Bocharov	First principles simulations on surface properties and reactivity of sustainable nitride nuclear fuels	Dr. chem. Yu. Zhukovskii
2011	J. Proskurins	Studies of Quantum Chaos and Phase Transitions in Nuclear Models	Dr. habil. phys. J. Tambergs
	M. Sorohovs	TlBr crystal optical, electrical and surface properties investigation: X-ray and γ –ray detectors development	Dr. habil. phys. L. Grigorjeva
	J. Hodakovska	Research of materials for membranes and membrane-electrode assembly for application in fuel cells	Dr. phys. J. Kleperis
	S. Fomins	Shape and color in image recognite	Prof. Dr. habil. phys. M. Ozolins
	E. Elsts	Spectroscopic Studies of Scintillator Materials: CsI:Tl, CdWO4:Mo and Tb activated oxyfluorides	Prof. Dr. habil. phys. U. Rogulis
2010	A. Gerbreders	Amorphous chalcogenide photoresists research and development	Dr. phys. J. Teteris
	E. Sledevskis	The photoinduced processes in chalcogenide films by continuous and pulse laser exposure	Dr. phys. J. Teteris
	G. Ikaunieks	Vision in high light scattering conditions	Prof. Dr. habil. phys. M. Ozolins
	K. Smits	Luminescence of zirconia nanocrystals	Dr. habil. phys. D. Millers
	A. Sarakovskis	Synthesis and up-conversion luminescence of erbium doped lanthanum containing fluoride structures	Dr. habil. phys. M. Springis
2009	J. Butikova	Laser ablation spectroscopy for impurity depth profiling in hot wall materials of thermonuclear fusion reactors	Prof. Dr. habil. phys. I. Tale
2008	R. Paeglis	Measurements of the kinematics of the eye in describing cognitive processes	Prof. Dr. habil. phys. I. Lacis
	A. Fedotovs	EPR of radiation defects in fluoride crystals and in oxyfluoride glass ceramics	Asoc. prof. Dr. habil. phys. U. Rogulis
	O. Balcers	Photothermal properties of amorphous chalcogenide thin films	Dr. phys. J. Teteris
	I. Aulika	Optical depth profile and phase transitions investigation of NaNbO3 and Pb(Zr,Ti)O3 thin films	Dr. phys. V. Zauls
2007	L. Dimitrocenko	Synthesis of complex fluoride single crystals, glass ceramics containing nano-crystals and their optical properties	Asoc. prof. Dr. habil. phys. U. Rogulis
	L. Grinberga	Research of new composite materials for hydrogen storage	Dr. phys. J. Kleperis
2005	E. Tamanis	Nanostructure layers deposition in Penning discharge source, their modifications and physical properties	Dr. habil. phys. J. Maniks
	M. Kundzins	Optical and electrophysical properties of heterostructure ferroelectric materials	Prof. Dr. habil. phys. G. Liberts
2004	R. Pokulis	Structural changes in fullerite C60 induced by light-irradiation and ambient oxygen	Dr. habil. phys. J. Maniks
	G. Krumina	Correlation between stereothreshold and quality of monocular stimuli	Prof. Dr. habil. phys. I. Lacis Prof. Dr. habil. phys. M. Ozolins

 

ISSP UL staff members have written and defended their thesis abroad

	Author	Title	University
2008	J. Mastrikovs	First-principles calculations of LaMnO3 surface reactivity	Stuttgart University, Germany
2007	V. Kashchejev	Quantum pumping in mesoscopic systems	Ben Gurion University, Isreael
2006	D. Gryaznov	Diffusion modelling in nanocrystals	Stuttgart University, Germany
2003	S. Piskunovs	Electronic structure of perfect and defective perovskite crystals by means of ab initio hybrid functional theory	Osnabrück University, Germany