Essays about: "spontaneous parametric down conversion"

Found 4 essays containing the words spontaneous parametric down conversion.

1. 1. Generation and detection of entangled single-photon pairs

   University essay from Uppsala universitet/FREIA

   Author : Gabriella Tesfamichael Habtezion; [2024]
   Keywords : ;

   Abstract : Quantum information technology is an emerging field with important applications such as quantum cryptography and teleportation, quantum imaging and lithography. These applications make use of single photons and pairs of entangled photons. In this work, we experimentally generate and attempt to detect the entangled photons. READ MORE

3. 2. III-V semiconductor waveguides for application in nonlinear optics.

   University essay from KTH/Tillämpad fysik

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

   Abstract : 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). READ MORE

4. 3. Demonstrating quantum entanglement and Hong-Ou-Mandel effect, using type-II spontaneous parametric down conversion with C programming for data collection

   University essay from KTH/Fysik

   Author : Erik Svanberg; Johan Johannisson Lundquist; [2022]
   Keywords : Quantum entanglement; polarization; HOM; Hong-Ou-Mandel; indistinguishability; type-II SPDC; spontaneous parametric down conversion; non-linear crystal; beam splitter; indistinguishable photons; data collection in C;

   Abstract : Spontaneous parametric down conversion (SPDC) is used to generate quantum entangled photons through a non-linear crystal. The entanglement of photons is demonstrated by observing the effects of indistinguishability on photons, first through time and energy, then by polarization. The Hong-Ou-Mandel (HOM) effect was also demonstrated. READ MORE

5. 4. Generating quantum entangled photons

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Stephan Nieto; Daniel Sanaee; [2021]
   Keywords : ;

   Abstract : In this project a laser setup was constructed, quantum entangled photons were generated and two different methods were used to show said entanglement. The entangled photons were generated through a process called spontaneous parametric down conversion (SPDC). READ MORE