Haku
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Light Source Optimization and Characterization for Multimodal Nonlinear Optical Microscopy
(2021)
Diplomityö
Diplomityö
The Ti:sapphire laser is a very useful laser which provides advantages such tunability and ultrashort pulses <10 fs. The low noise, good mechanical and thermal properties provide coherent pulses very convenient for nonlinear ...
Design and Construction of an Optimal Mueller Matrix Imaging Polarimeter for Biomedical Applications
(2021)
Pro gradu -tutkielma
Pro gradu -tutkielma
A new method for optimizing rotating compensator polarimeters based on the implementation of an elliptical retarder made by placing two linear retarders at an angle offset is formulated. By adjusting the angle between the ...
Stability of (2+1)D solitons in the generally nonlocal regime
(2021)
Pro gradu -tutkielma
Pro gradu -tutkielma
Since the description of accessible solitons by Snyder and Mitchel, the exploration of nonlocality in nonlinear media as a way to stabilize multidimensional solitons has received increasing attention. However, while the ...
Multiplexed Super-Resolution Imaging : Design of deoxyribonucleic acid (DNA) oligonucleotides for multiplexed imaging on DNA origami nanostructures
(2021)
Diplomityö
Diplomityö
This project aims to investigate the possibility of multiplexing and achieving a 20-nanometer resolution in an existing setup using single-molecule localisation microscopy methods. In addition, this thesis aims to establish ...
Chracterization of GaSb edge-emitting devices in 2 - 3 µm wavelength
(2021)
Diplomityö
Diplomityö
Supercontinuum Generation in a Graded-Index Multimode Tellurite Fiber
(2021)
Pro gradu -tutkielma
Pro gradu -tutkielma
Supercontinuum generation (SCG) has attracted major attention due to its unique properties. These included an ultrabroad spectral bandwidth, high directionality, and under specific conditions high coherence, which makes ...
D-Shaped Optical Fiber Sensor via Evanescent Wave Effect
(2022)
Diplomityö
Diplomityö
Design of all-fiber, single cavity dual-comb laser
(2022)
Diplomityö
Diplomityö
Dual-comb spectroscopy (DCS) has proven to be a powerful technique for high-resolution and high sensitivity broadband spectroscopy, but the cost and complexity of the available laser sources has limited its application ...
Nanofabrication and characterization of 3D photonic metamaterials from visible to THz regime
(2022)
Pro gradu -tutkielma
Pro gradu -tutkielma
In this work, I report on the fabrication and characterization of three-dimensional (3D) metamaterial structures with enhanced optical properties from visible (VIS) to terahertz (THz) spectrum regimes. The 3D metamaterials ...
Wavelength Tunable MECSELs
(2023)
Diplomityö
Diplomityö
Membrane external-cavity surface-emitting lasers (MECSELs) represent a relatively new category of semiconductor laser that have potential to be attractive tunable light sources for various applications. Potential advantages ...