In dit rapport is nagegaan of goedkope geluidssensoren geschikt zijn voor een kwalitatieve beoordeling van de geluidsniveaus die ontstaan bij het contact tussen de band en het wegdek. Om dit te beoordelen is een sensorsysteem ontwikkeld en is onderzocht hoe de resultaten van de sensor zich onder gecontroleerde …

Multiple scientific and industrial applications such as telecommunication and quantum cryptography causing a rise in the development of the superconducting nanowire single photons detectors (SNSPD). In the last decade, the characteristics of the detectors improved but run against the problem that the …

Sinds een aantal jaren poogt de overheid het beroep van docent aantrekkelijker te maken. Een manier om dit te bewerkstelligen is de opleidingsmogelijkheden vergroten. Dit artikel geeft een overzicht van de opleidingsmogelijkheden tot docent natuurkunde, biologie en scheikunde, en gaat in op recente …

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Groeblacher Labs, at the TU Delft tries to achieve entanglement using optomechanical resonators like nanobeams. This is done by using the side peaks generated by the optomechanical resonators. These peaks are separated by 5 GHz in relation to the resonance peak of the optomechanical resonator. Because …

In this thesis the workings of a time-resolved setup are treated as well as the underlying physics. The setup is based on optical gating, which gives control over very short moments in time to let light pass through a gate. As this process is stable, light can be studied in very short and low intensities. …

Cyanobacteriochromen (CBCR) zijn fytochroom-gerelateerde fotoreceptor eiwitten, die van eiwitstructuur veranderen wanneer deze belicht worden met bepaalde kleuren licht. Tijdens deze foto-conversie transformeren de CBCRs van de ene stabiele staat naar de andere, via het doorlopen van verschillende tussenproducten. …

A system was designed and assembled to measure the critical temperature of superconductive thin niobium titanium nitride films. The films were produced via a process called sputtering. The parameters used during this process were characterized to produce films with as high as possible critical temperature …

A program that automatically detects auroral events in all-sky images taken by the all-sky camera of IRF has been written. Current programs that automatically detect the aurora in all-sky images using the RGB color system often miss strong aurora and sometimes interprets clouds as aurora. To improve …

Integrated photonic sensors are promising devices for various sensing applications due to their low cost, small size, and high sensitivities that can be reached. In this thesis, ring resonators and three-port Mach-Zehnder interferometer (MZI) devices fabricated on Silicon-On-Insulator were compared for …