5 citations · 5 across the 4 of their papers we have counts for
9 papers
Mid-infrared Single-photon Detection Using Superconducting NbTiN Nanowires with Sub-15 ps Time Resolution in a Gifford-McMahon Cryocooler
Jin Chang, Johannes W. N. Los, Ronan Gourgues +6
Shortly after their inception, superconducting nanowire single-photon detectors (SNSPDs) became the leading quantum light detection technology. With the capability of detecting sin…
High Finesse Cavity with Anapole-Assisted Resonant Subwavelength Particle Mirror
Z. Xi, H. P. Urbach
Strong light interaction with a subwavelength object has been a long pursuing goal with difficulties mainly arising from the diffraction limit. We propose a high finesse cavity wit…
Detecting Infrared Single Photons with Near-Unity System Detection Efficiency
Jin Chang, Johannes W. N. Los, Jaime Oscar Tenorio-Pearl +9
Single photon detectors are indispensable tools in optics, from fundamental measurements to quantum information processing. The ability of superconducting nanowire single photon de…
Parameter retrieval methods in ptychography
Xukang Wei, H. Paul Urbach, Peter van der Walle +1
We present a parameter retrieval method which combines ptychography and additional prior knowledge about the object. The proposed method is applied to two applications: (1) paramet…
The CRLB and Maximum likelihood in ptychography with Poisson noise
Xukang Wei, H. Paul Urbach
We investigate the performance of ptychography with noisy data by analyzing the Cramér Rao Lower Bound. The lower bound of ptychography is derived and numerically computed for both…
Fisher-Information Efficient Metagratings for Transverse Displacement Metrology at the Measurement Independent Shot-Noise Limit
Zheng Xi, Sander Konijnenberg, H. P. Urbach
We derive the measurement independent precision bound for transverse displacement metrology using a classical source. Using tools from quantum estimation theory and metamaterial de…