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