Integrated measurement-induced nonlinearity with superconducting detectors / vorgelegt von Jan Philipp Höpker. Paderborn, 2022
Inhalt
- Introduction
- Theoretical background
- Introduction to quantum states
- Spontaneous parametric down-conversion
- Single-photon interference
- Measurement-induced nonlinearity
- Source characterization
- Input state setup
- Coherent state characterization
- Single-photon state characterization
- Pump spectrum
- Joint spectral intensity
- Heralding efficiency
- Single-photon second-order autocorrelation measurements
- Source characterization summary
- Passive integrated circuits
- Titanium in-diffused waveguides in lithium niobate
- Integrated directional coupler
- Multi-channel fiber interfacing
- Integrated optical circuits
- Measurement-induced nonlinearity with integrated circuits
- Integrated Detectors
- Basics
- Integrated SNSPDs
- SNSPD simulations
- SNSPD flood illumination
- SNSPD loss characterization
- SNSPD efficiency characterization
- Pyroelectric damage
- Integrated TESs
- Conclusion and Outlook
- Bibliography
- Appendix
- Wave equation and the harmonic oscillator
- Analytical investigation of single-photon interference
- Analytical investigation of a photon-subtracted coherent state
- QuTiP simulations with coherent-state amplitudes higher than one
- Specifications of utilized devices
- Single-photon source characterization using the Cazadero laser
- Multi-channel fiber-pigtailing setup
- Tabular measurement results for Chapter 5
- Transition edge sensors as a single-photon spectrometer