Št. zadetkov: 8
Magistrsko delo
Oznake:
strojno učenje;nematski tekoči kristali;nevronske mreže;elastične konstante;Frank-Oseenova prosta energija;numerične simulacije;optika;
Tri elastične konstante, ki pripadajo trem osnovnim deformacijam orientacijske ureditve molekul nematskega tekočega kristala (pahljačasti, zvojni in upogibni), določajo ravnovesno ureditev in relaksacijsko dinamiko iz neravnovesnega stanja. V
magistrskem delu razvijemo novo metodo določanja elastič ...
Leto:
2021
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Doktorska disertacija
Oznake:
light modelling;numerical simulation;neural network;soft matter;liquid crystals;photonics;optics;laser;
This thesis presents numerical modelling of light in soft-matter photonic structures, specifically in cholesteric and nematic liquid crystals, together with the application of machine learning to material characterisation and photonic design. The numerical work combines finite-difference time-domain ...
Leto:
2026
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
fizika kondenzirane snovi;nematski tekoči kristali;nevronske mreže;condensed matter physics;nematic liquid crystals;neural networks;
Supervised machine learning and artificial neural network approaches can allow for the determination of selected material parameters or structures from a measurable signal without knowing the exact mathematical relationship between them. Here, we demonstrate that material nematic elastic constants a ...
Leto:
2023
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
optika;fotonika;tekoči kristali;optics;photonics;liquid crystals;
Photonic defect modes are explored as a viable alternative to standard photonic band edge modes in photonic crystal applications, especially due to their typically high Q-factors and local density of states. For example, they can be used in nonlinearity enhancement, lasing, and cavity quantum electr ...
Leto:
2024
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
WGM spektroskopija;tekoči kristali;tekočekristalne kapljice;Whispering Gallery Mode spectroscopy;liquid crystals;liquid crystal droplets;
We demonstrate that the Whispering Gallery Mode (WGM) lasing spectroscopy is a versatile high resolution tool to study the structure of interfaces of liquid crystalline (LC) droplets immersed in an immiscible fluid, such as water. The eigenfrequencies of WGMs in spherical microcavities are very sens ...
Leto:
2026
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
fotonika;holesterični tekoči kristali;optični resonatorji;lastni načini;photonics;cholesteric liquid crystals;optical resonators;optical eigenmodes;
Cholesteric liquid crystals (CLCs) are birefringent materials with a helical molecular orientation that enables the selective reflection of circularly polarized light, making them valuable for various optical applications. While extensively studied in planar geometries, their optical properties in c ...
Leto:
2025
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
tekoči kristali;lasersko delovanje;laserska emisija;načini šepetajoče galerije;upravljanje svetlobe;nadzor svetlobe;izčrpanje vzbujene emisije;3D printing;liquid crystals;lasing;whispering gallery models;light control;stimulated emission depletion;
The all-optical control of light has been explored in hard matter, but to control light by light in soft matter is a major experimental and conceptual challenge that remains largely unexplored. We propose and verify experimentally and numerically that nanosecond light pulses can be controlled by lig ...
Leto:
2026
Vir:
Institut Jožef Stefan (IJS)
Vellaichamy Mahendran,
Uroš Jagodič,
Jaka Pišljar,
Jaka Zaplotnik,
Urban Mur,
Andreja Jelen,
Andriy Nych,
Deepshika Malkar,
Anna V. Ryzhkova,
Miha Škarabot,
Miha Ravnik,
Igor Muševič
Izvirni znanstveni članek
Oznake:
tekoči kristali;fotoni;laserji;
The softness of liquid crystals, their anisotropic material properties, their strong response to external fields and their ability to align on patterned surfaces makes them unsurpassable for a number of photonic applications, such as flat-panel displays, light modulators, tunable filters, entangled ...
Leto:
2025
Vir:
Institut Jožef Stefan (IJS)