Sökning: "optics"

Visar resultat 21 - 25 av 226 uppsatser innehållade ordet optics.

1. 21. Quantum state tomography of attosecond electron wavepackets

   Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Författare :Ron Demjaha; [2022]
   Nyckelord :quantum physics; quantum state tomography; atomic physics; quantum optics; density matrix; entanglement; state mixing; fano resonances; two-photon absorption; Physics and Astronomy;

   Sammanfattning : In this master thesis, a broad theoretical description is done of a novel quantum state tomography protocol called KRAKEN. This protocol is meant for the determination of the density matrix of an electronic state created by absorption of XUV radiation in the vicinity of a Fano resonance. At first, a description of the KRAKEN protocol is provided. LÄS MER

3. 22. Investigation and evaluation of optical distance sensors

   Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Signaler och system

   Författare :Olof Wigzell; [2022]
   Nyckelord :optics; radiometry; senssor; microcontroller; irradiance; circuit design; calibration; validation;

   Sammanfattning : Optical sensors are among the sensors that are often used for distance measurements. An optical distance sensor is basically made of a light emitter (Tx) such as a light emitting diode (LED), a light receiver (Rx) such as a photosensitive transistor, and a circuit supporting the operation of the Tx and Rx. LÄS MER

4. 23. Femtosecond-laser Written Integrated Optical Devices for Quantum Circuits

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Ang Chen; [2022]
   Nyckelord :Quantum optics; femtosecond-laser waveguide writing; integrated quantum photonics; photonic circuits; quantum technology.; Kvantoptik; femtosekundlaservågledarskrivning; integrerad kvantfotonik; fotonikkretsar; kvantteknologi.;

   Sammanfattning : Integrated quantum photonic circuits have gained increasing interest in the field of quantum information, due to their compactness, the intrinsic stability and the potential scalability. Photons are the promising candidate for quantum information processing. LÄS MER

5. 24. III-V semiconductor waveguides for application in nonlinear optics.

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Andreas Charalampous; [2022]
   Nyckelord :InGaP; optical waveguides; integrated optics; quantum nonlinear optics; SHG; SPDC; InGaP; optiska vågledare; integrerad optik; icke-linjär kvantoptik; SHG; SPDC;

   Sammanfattning : This thesis presents studies on III-V semiconductor waveguides with particular emphasis on second-order optical nonlinearity. The nonlinear processes that were investigated in this thesis are the Second Harmonic Generation (SHG) and the Spontaneous Parametric Down-Conversion (SPDC). LÄS MER

7. 25. Construction and development of a low-cost hyperspectral imaging system

   Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

   Författare :Nikita Grigoriev; [2022]
   Nyckelord :Hyperspectral Imaging; Pushbroom;

   Sammanfattning : Quantification of spectral data is of great interest in many fields of science, since it can provide further insight into other properties of an object. However, traditional cameras are usually made to image the world in a similar fashion as to how we see it, wherefore they are usually not fit to record nor measure further spectral information. LÄS MER