Julian Brockmeier
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View article: Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes
Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes Open
Cointegration of heralded single-photon generation and on-chip detection requires the ability to differentiate between pump light and single photons. We explored the dispersion-induced temporal separation of optical pulses to reach this go…
View article: All optical operation of a superconducting photonic interface
All optical operation of a superconducting photonic interface Open
Quantum photonic processing via electro-optic components typically requires electronic links across different operation environments, especially when interfacing cryogenic components such as superconducting single photon detectors with roo…
View article: All optical operation of a superconducting photonic interface
All optical operation of a superconducting photonic interface Open
Advanced electro-optic processing combines electrical control with optical modulation and detection. For quantum photonic applications these processes must be carried out at the single photon level with high efficiency and low noise. Integ…
View article: Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides
Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides Open
Lithium niobate is a promising platform for integrated quantum optics. In this platform, we aim to efficiently manipulate and detect quantum states by combining superconducting single photon detectors and modulators. The cryogenic operatio…
View article: Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides
Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides Open
Lithium niobate is a promising platform for integrated quantum optics. In this platform we aim to efficiently manipulate and detect quantum states by combining superconducting single photon detectors and modulators. The cryogenic operation…
View article: Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging
Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging Open
Potassium titanyl phosphate (KTP) is a nonlinear optical material with applications in high-power frequency conversion or quasi-phase matching in submicron period domain grids. A prerequisite for these applications is a precise control and…
View article: Characterisation of width-dependent diffusion dynamics in rubidium-exchanged KTP waveguides
Characterisation of width-dependent diffusion dynamics in rubidium-exchanged KTP waveguides Open
Integrated χ (2) devices are a widespread tool for the generation and manipulation of light fields, since they exhibit high efficiency, a small footprint and the ability to interface them with fibre networks. Surprisingly, some commonly us…
View article: Evidence of nonlinear diffusion in KTP waveguides
Evidence of nonlinear diffusion in KTP waveguides Open
Integrated $χ^{(2)}$ devices are a widespread tool for the generation and manipulation of light fields, since they exhibit high efficiency, small footprint and the ability to interface them with fibre networks. Surprisingly many things are…