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SILICON-on-insulator photonic wire technology allows for a substantial scaling in the size of photonic integrated circuits due to the high refractive index contrast that is available. Silicon waveguides with dimensions on the order of 500 nm by 200 nm allow for single mode propagation and tight optical con?nement. The high refractive index contrast makes the waveguide structures very polarization dependent however, which is an issue in many practical applications. Therefore polarization diversity schemes are being proposed to tackle this problem. In one approach, a polarization splitter and ...

SILICON-on-insulator photonic wire technology allows for a substantial scaling in the size of photonic integrated circuits due to the high refractive index contrast that is available. Silicon waveguides with dimensions on the order of 500 nm by 200 nm allow for single mode propagation and tight optical con?nement. The high refractive index contrast makes the waveguide structures very polarization dependent however, which is an issue in many practical applications. Therefore polarization diversity schemes are being proposed to tackle this problem. In one approach, a polarization splitter and ...

This disclosure relates to an in-air sonar system for determining location and velocity information of objects in an environment, the in- air sonar system comprising at least two emitters forming an emitter array (111) to emit respective sound signals into the environment; at least two receivers forming a receiver array (112) to receive sound signals from the environment; and a processing unit (120) to perform: obtaining, from the receivers (112), respective received sound signals comprising the emitted sound signal reflected from objects (13, 14, 15) in the environment; calculating, from the ...

The present disclosure relates to an in-air sonar system for determining location and velocity information of objects in an environment, the in-air sonar system comprising at least one emitter configured to emit a respective sound signal into the environment; at least two receivers configured to receive sound signals from the environment; and a processing unit configured to perform: obtaining, from the receivers, respective received sound signals comprising the emitted sound signal reflected from objects in the environment; calculating, from the respective received sound signals, respective ...

This disclosure relates to an in-air sonar system for determining location and velocity information of objects in an environment, the in- air sonar system comprising at least two emitters forming an emitter array (111) to emit respective sound signals into the environment; at least two receivers forming a receiver array (112) to receive sound signals from the environment; and a processing unit (120) to perform: obtaining, from the receivers (112), respective received sound signals comprising the emitted sound signal reflected from objects (13, 14, 15) in the environment; calculating, from the ...

The present disclosure relates to a method of imaging a moving object in an 5 environment by means of a FMCW radar configured to transmit via a plurality of transmit antennas respective FMCW radar signals comprising radar chirps and to receive via a plurality of receive antennas reflections of the respective FMCW radar signals from the environment, the method comprising: obtaining reflections of the respective FMCW radar signals; deriving, from the received reflections and the spatial 10 diversity of the receive antennas, coherent FMCW radar signals; calculating, from the received ...

The present disclosure relates to an acoustic system for detecting gas leaks from pressurized containers moving in a pre-determined way in an environment, the acoustic system comprising at least three receivers configured to receive a respective sound signal from the environment and a processing system configured to perform: obtaining, from the at least three receivers, respective received sound signals at respective time instances; the respective received sound signals comprising sound signals emitted by one or more gas-leaking pressurized containers; calculating, from the respective ...

The present disclosure relates to an acoustic system for detecting gas leaks from pressurized containers moving in a pre-determined way in an environment, the acoustic system comprising at least three receivers configured to receive a respective sound signal from the environment and a processing system configured to perform: obtaining, from the at least three receivers, respective received sound signals at respective time instances; the respective received sound signals comprising sound signals emitted by one or more gas-leaking pressurized containers; calculating, from the respective ...

We developed a generic approach to type genome-wide single nucleotide polymorphisms in single human cells and to reconstruct for the first time genome-wide haplotypes of single- or dual-cell derived genotypes. Proof-of-principle is delivered for EBV-transformed lymphoblastoid cells as well as human blastomeres. To this end, multiple displacement amplified DNA samples of single cells were hybridized to Affymetrix 250K SNP-arrays. Different algorithmic designs were subsequently developed to assess from the single-cell derived SNP-probe intensities the sequence of syntenic alleles and to ...

A method for production of a uniform polymer of high molar mass is provides, the method comprising: (a) polymerizing cyclic imino ether monomer in a first reaction mixture by cationic ring opening polymerization to produce a polymerized first reaction mixture containing (i) polymerized material and (ii) solvent and/or unreacted cyclic imino ether monomer; (b) separating solvent and/or unreacted cyclic imino ether monomer from polymerized material contained in the polymerized first reaction mixture; (c) copolymerizing by cationic ring opening polymerization a second liquid reaction mixture ...