FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1944430724> ?p ?o ?g. }

• W1944430724 abstract "This thesis covers the development and the characterization of a single photon detector based on a superconducting microcalorimeter. The detector development is motivated by the Any Light Particle Search II (ALPS II) experiment at DESY in Hamburg, which searches for weakly interacting sub-eV particles (WISPs). There- fore, a detection of low-fluxes of 1064 nm light is required. The work is divided in three analyses: the characterization of a milli-kelvin (mK) cryostat, the character- ization of superconducting sensors for single photon detection, and the determina- tion of dark count rates concerning 1064 nm signals. Firstly, an adiabatic demagnetization refrigerator (ADR) is characterized, which allows to reach mK-temperatures. During commissioning, the ADR cryostat is op- timized and prepared to stably cool superconducting sensors at 80 mK 25 K. It is found that sensors can be continuously operated for 20 h before recharging the system in < 2 h. Furthermore, the adiabatic system reaches a chance of success of 80 % for a recharge without technical problems. Secondly, superconducting sensors are analyzed. The focus is on microcalori- metric transition-edge sensors (TESs) based on 20 nm Tungsten (W) films fabri- cated by the U.S. National Institute of Standards and Technology (NIST). NIST TESs have a near unity detection e ciency for 1064 nm light (literature value). The energy resolution for 1064 nm signals is measured to be < 8 %. The expo- nential falling time of a photon pulse is 1.5 s. Furthermore, by determining TES parameters, it is found that the linear TES theory describes measured photon pulses well. The TES response is read out by a superconducting quantum interference device (SQUID) fabricated by Physikalisch-Technische Bundesanstalt (PTB). The system bandwidth is measured to be 0.9 MHz. Finally, the operation in the ADR cryostat as well as the ALPS II laboratory is optimized. This setup forms the ALPS TES detector. Thirdly, the background is measured to obtain a dark count rate for 1064 nm signals. The ALPS TES detector is calibrated by a 1064 nm single photon source and methods are developed to analyze signals. In long-term measurements, back- ground events are measured by using di erent optical setups. By operating the TES without an optical link outside mK-environment, intrinsic background components are observed and classified. This results in an intrinsic dark count rate for 1064 nm signals of 1 : 0 10" @default.
• W1944430724 created "2016-06-24" @default.
• W1944430724 creator A5017088318 @default.
• W1944430724 date "2014-06-27" @default.
• W1944430724 modified "2023-09-23" @default.
• W1944430724 title "A superconducting microcalorimeter for low-flux detection of near-infrared single photons" @default.
• W1944430724 doi "https://doi.org/10.3204/desy-thesis-2014-016" @default.
• W1944430724 hasPublicationYear "2014" @default.
• W1944430724 type Work @default.
• W1944430724 sameAs 1944430724 @default.
• W1944430724 citedByCount "2" @default.
• W1944430724 countsByYear W19444307242014 @default.
• W1944430724 countsByYear W19444307242022 @default.
• W1944430724 crossrefType "journal-article" @default.
• W1944430724 hasAuthorship W1944430724A5017088318 @default.
• W1944430724 hasConcept C109663097 @default.
• W1944430724 hasConcept C120665830 @default.
• W1944430724 hasConcept C121332964 @default.
• W1944430724 hasConcept C159317903 @default.
• W1944430724 hasConcept C26873012 @default.
• W1944430724 hasConcept C4846943 @default.
• W1944430724 hasConcept C54101563 @default.
• W1944430724 hasConcept C62520636 @default.
• W1944430724 hasConcept C89106999 @default.
• W1944430724 hasConcept C94915269 @default.
• W1944430724 hasConcept C97355855 @default.
• W1944430724 hasConceptScore W1944430724C109663097 @default.
• W1944430724 hasConceptScore W1944430724C120665830 @default.
• W1944430724 hasConceptScore W1944430724C121332964 @default.
• W1944430724 hasConceptScore W1944430724C159317903 @default.
• W1944430724 hasConceptScore W1944430724C26873012 @default.
• W1944430724 hasConceptScore W1944430724C4846943 @default.
• W1944430724 hasConceptScore W1944430724C54101563 @default.
• W1944430724 hasConceptScore W1944430724C62520636 @default.
• W1944430724 hasConceptScore W1944430724C89106999 @default.
• W1944430724 hasConceptScore W1944430724C94915269 @default.
• W1944430724 hasConceptScore W1944430724C97355855 @default.
• W1944430724 hasLocation W19444307241 @default.
• W1944430724 hasOpenAccess W1944430724 @default.
• W1944430724 hasPrimaryLocation W19444307241 @default.
• W1944430724 hasRelatedWork W1606561747 @default.
• W1944430724 hasRelatedWork W1978149649 @default.
• W1944430724 hasRelatedWork W1978180808 @default.
• W1944430724 hasRelatedWork W1987591160 @default.
• W1944430724 hasRelatedWork W1994305340 @default.
• W1944430724 hasRelatedWork W2029462086 @default.
• W1944430724 hasRelatedWork W2039109995 @default.
• W1944430724 hasRelatedWork W2050628481 @default.
• W1944430724 hasRelatedWork W2051335735 @default.
• W1944430724 hasRelatedWork W2063572756 @default.
• W1944430724 hasRelatedWork W2159720540 @default.
• W1944430724 hasRelatedWork W2159958725 @default.
• W1944430724 hasRelatedWork W2174302680 @default.
• W1944430724 hasRelatedWork W2751706537 @default.
• W1944430724 hasRelatedWork W2887416527 @default.
• W1944430724 hasRelatedWork W2967849446 @default.
• W1944430724 hasRelatedWork W3019122688 @default.
• W1944430724 hasRelatedWork W3098164268 @default.
• W1944430724 hasRelatedWork W3102203972 @default.
• W1944430724 isParatext "false" @default.
• W1944430724 isRetracted "false" @default.
• W1944430724 magId "1944430724" @default.
• W1944430724 workType "article" @default.