A CVD single crystal diamond material
A CVD single crystal diamond material which is polished to produce a polish with an Ra (arithmetic mean of the absolute deviation from the mean line through the profile of less than 2nm, or a flatness measured with 633nm radiation better than 10 fringes, or a parallelism better than 1 arc minute. Th...
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| creator | GEOFFREY ALAN SCARSBROOK ANDREW JOHN WHITEHEAD HERMAN PHILIP GODFRIED CLIVE EDWARD HALL DANIEL JAMES TWITCHEN EVERT HOUWMAN PHILIP MAURICE MARTINEAU WILHELMUS GERARDA MARIA NELISSEN |
| description | A CVD single crystal diamond material which is polished to produce a polish with an Ra (arithmetic mean of the absolute deviation from the mean line through the profile of less than 2nm, or a flatness measured with 633nm radiation better than 10 fringes, or a parallelism better than 1 arc minute. The material may be suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material may be produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications. |
| format | Patent |
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The material may be suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material may be produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.</description><language>eng</language><subject>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE ; APPARATUS THEREFOR ; CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; COMPOUNDS THEREOF ; CRYSTAL GROWTH ; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; FREQUENCY-CHANGING ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; INORGANIC CHEMISTRY ; METALLURGY ; NON-LINEAR OPTICS ; NON-METALLIC ELEMENTS ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; OPTICAL LOGIC ELEMENTS ; OPTICS ; PHYSICS ; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE ; REFINING BY ZONE-MELTING OF MATERIAL ; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE ; SINGLE-CRYSTAL-GROWTH ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF ; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL</subject><creationdate>2007</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070704&DB=EPODOC&CC=GB&NR=2433737A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070704&DB=EPODOC&CC=GB&NR=2433737A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GEOFFREY ALAN SCARSBROOK</creatorcontrib><creatorcontrib>ANDREW JOHN WHITEHEAD</creatorcontrib><creatorcontrib>HERMAN PHILIP GODFRIED</creatorcontrib><creatorcontrib>CLIVE EDWARD HALL</creatorcontrib><creatorcontrib>DANIEL JAMES TWITCHEN</creatorcontrib><creatorcontrib>EVERT HOUWMAN</creatorcontrib><creatorcontrib>PHILIP MAURICE MARTINEAU</creatorcontrib><creatorcontrib>WILHELMUS GERARDA MARIA NELISSEN</creatorcontrib><title>A CVD single crystal diamond material</title><description>A CVD single crystal diamond material which is polished to produce a polish with an Ra (arithmetic mean of the absolute deviation from the mean line through the profile of less than 2nm, or a flatness measured with 633nm radiation better than 10 fringes, or a parallelism better than 1 arc minute. The material may be suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material may be produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.</description><subject>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE</subject><subject>APPARATUS THEREFOR</subject><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>COMPOUNDS THEREOF</subject><subject>CRYSTAL GROWTH</subject><subject>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</subject><subject>FREQUENCY-CHANGING</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>NON-LINEAR OPTICS</subject><subject>NON-METALLIC ELEMENTS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</subject><subject>REFINING BY ZONE-MELTING OF MATERIAL</subject><subject>SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</subject><subject>SINGLE-CRYSTAL-GROWTH</subject><subject>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><subject>UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFB1VHAOc1EozsxLz0lVSC6qLC5JzFFIyUzMzc9LUchNLEktykzM4WFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8e5ORibGxubG5o7GhFUAAFR3JZ8</recordid><startdate>20070704</startdate><enddate>20070704</enddate><creator>GEOFFREY ALAN SCARSBROOK</creator><creator>ANDREW JOHN WHITEHEAD</creator><creator>HERMAN PHILIP GODFRIED</creator><creator>CLIVE EDWARD HALL</creator><creator>DANIEL JAMES TWITCHEN</creator><creator>EVERT HOUWMAN</creator><creator>PHILIP MAURICE MARTINEAU</creator><creator>WILHELMUS GERARDA MARIA NELISSEN</creator><scope>EVB</scope></search><sort><creationdate>20070704</creationdate><title>A CVD single crystal diamond material</title><author>GEOFFREY ALAN SCARSBROOK ; ANDREW JOHN WHITEHEAD ; HERMAN PHILIP GODFRIED ; CLIVE EDWARD HALL ; DANIEL JAMES TWITCHEN ; EVERT HOUWMAN ; PHILIP MAURICE MARTINEAU ; WILHELMUS GERARDA MARIA NELISSEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB2433737A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE</topic><topic>APPARATUS THEREFOR</topic><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>COMPOUNDS THEREOF</topic><topic>CRYSTAL GROWTH</topic><topic>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</topic><topic>FREQUENCY-CHANGING</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>NON-LINEAR OPTICS</topic><topic>NON-METALLIC ELEMENTS</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</topic><topic>OPTICAL LOGIC ELEMENTS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</topic><topic>REFINING BY ZONE-MELTING OF MATERIAL</topic><topic>SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</topic><topic>SINGLE-CRYSTAL-GROWTH</topic><topic>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</topic><topic>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</topic><topic>UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL</topic><toplevel>online_resources</toplevel><creatorcontrib>GEOFFREY ALAN SCARSBROOK</creatorcontrib><creatorcontrib>ANDREW JOHN WHITEHEAD</creatorcontrib><creatorcontrib>HERMAN PHILIP GODFRIED</creatorcontrib><creatorcontrib>CLIVE EDWARD HALL</creatorcontrib><creatorcontrib>DANIEL JAMES TWITCHEN</creatorcontrib><creatorcontrib>EVERT HOUWMAN</creatorcontrib><creatorcontrib>PHILIP MAURICE MARTINEAU</creatorcontrib><creatorcontrib>WILHELMUS GERARDA MARIA NELISSEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GEOFFREY ALAN SCARSBROOK</au><au>ANDREW JOHN WHITEHEAD</au><au>HERMAN PHILIP GODFRIED</au><au>CLIVE EDWARD HALL</au><au>DANIEL JAMES TWITCHEN</au><au>EVERT HOUWMAN</au><au>PHILIP MAURICE MARTINEAU</au><au>WILHELMUS GERARDA MARIA NELISSEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A CVD single crystal diamond material</title><date>2007-07-04</date><risdate>2007</risdate><abstract>A CVD single crystal diamond material which is polished to produce a polish with an Ra (arithmetic mean of the absolute deviation from the mean line through the profile of less than 2nm, or a flatness measured with 633nm radiation better than 10 fringes, or a parallelism better than 1 arc minute. The material may be suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material may be produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOUNDS THEREOF CRYSTAL GROWTH DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DIFFUSION TREATMENT OF METALLIC MATERIAL FREQUENCY-CHANGING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INORGANIC CHEMISTRY METALLURGY NON-LINEAR OPTICS NON-METALLIC ELEMENTS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL |
| title | A CVD single crystal diamond material |
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