Control of the Responsivity and the detectivity of superconductive edge-transition YBa2Cu3O7-x bolometers through substrate properties

dc.citation.epage4742en_US
dc.citation.issueNumber22en_US
dc.citation.spage4735en_US
dc.citation.volumeNumber38en_US
dc.contributor.authorFardmanesh, M.en_US
dc.contributor.authorScoles, K. J.en_US
dc.contributor.authorRothwarf, A.en_US
dc.date.accessioned2015-07-28T11:56:52Z
dc.date.available2015-07-28T11:56:52Z
dc.date.issued1999-08-01en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractThe detectivity D* limits of YBa2Cu3O7-x bolometer on 0.05-cm-thick crystalline substrates are investigated, and a method to increase D* to greater than 10(9) (cm Hz(1/2))/W at a 20-mu m wavelength is proposed. Because the response increases proportionally with the bias current I-b, whereas the noise near T-c (the transition or critical temperature) of our MgO and SrTiO3 substrate samples does not, an increase in D* of these samples is obtained by an increase in I-b. Another limiting factor is the de thermal conductance G(0) of the device, which, although controlled by the substrate-holder thermal boundary resistance for our samples, can be changed by means of thinning the substrate to increase D*. The optimal amount of thinning depends on the substrate's thermal parameters and the radiation modulation frequency. D* in our samples is also found to follow the spectral-radiation absorption of the substrate material.en_US
dc.description.provenanceMade available in DSpace on 2015-07-28T11:56:52Z (GMT). No. of bitstreams: 1 10.1364-AO.38.004735.pdf: 143955 bytes, checksum: 823aebe59109ffa7953c8d1fc70b95de (MD5)en
dc.identifier.doi10.1364/AO.38.004735en_US
dc.identifier.issn0003-6935
dc.identifier.urihttp://hdl.handle.net/11693/11102
dc.language.isoEnglishen_US
dc.publisherOptical Society of Americaen_US
dc.relation.isversionofhttp://dx.doi.org/10.1364/AO.38.004735en_US
dc.source.titleApplied Opticsen_US
dc.subjectThin-filmen_US
dc.subjectMicrobolometeren_US
dc.subjectFrequencyen_US
dc.subjectInterfaceen_US
dc.subjectPhaseen_US
dc.titleControl of the Responsivity and the detectivity of superconductive edge-transition YBa2Cu3O7-x bolometers through substrate propertiesen_US
dc.typeArticleen_US

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