Optical Properties of Fluid Hydrogen at the Transition to a Conducting State
We use fast transient transmission and emission spectroscopies in the pulse laser heated diamond anvil cell to probe the energy-dependent optical properties of hydrogen at pressures of 10-150 GPa and temperatures up to 6000 K. Hydrogen is absorptive at visible to near-infrared wavelengths above a th...
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| Veröffentlicht in: | Physical review letters 2016-06, Vol.116 (25), p.255501-255501, Article 255501 |
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| container_title | Physical review letters |
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| creator | McWilliams, R Stewart Dalton, D Allen Mahmood, Mohammad F Goncharov, Alexander F |
| description | We use fast transient transmission and emission spectroscopies in the pulse laser heated diamond anvil cell to probe the energy-dependent optical properties of hydrogen at pressures of 10-150 GPa and temperatures up to 6000 K. Hydrogen is absorptive at visible to near-infrared wavelengths above a threshold temperature that decreases from 3000 K at 18 GPa to 1700 K at 110 GPa. Transmission spectra at 2400 K and 141 GPa indicate that the absorptive hydrogen is semiconducting or semimetallic in character, definitively ruling out a first-order insulator-metal transition in the studied pressure range. |
| doi_str_mv | 10.1103/PhysRevLett.116.255501 |
| format | Article |
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Hydrogen is absorptive at visible to near-infrared wavelengths above a threshold temperature that decreases from 3000 K at 18 GPa to 1700 K at 110 GPa. Transmission spectra at 2400 K and 141 GPa indicate that the absorptive hydrogen is semiconducting or semimetallic in character, definitively ruling out a first-order insulator-metal transition in the studied pressure range.</description><subject>Absorptivity</subject><subject>Diamond anvil cells</subject><subject>Hydrogen storage</subject><subject>Laser beam heating</subject><subject>Near infrared radiation</subject><subject>Optical properties</subject><subject>Spectra</subject><subject>Wavelengths</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqFkV1rFDEUhoModlv9CyV45c3Uk4_Jx6Us1goLLVqvQzY5043MTtYkU9h_75St0juvDrw87zlwHkIuGVwxBuLT3e5Yv-PjBltbAnXF-74H9oqsGGjbacbka7ICEKyzAPqMnNf6CwAYV-YtOeNaWKaFWJHN7aGl4Ed6V_IBS0tYaR7o9TinSG-OseQHnKhvtO2Q3hc_1dRSnmjL1NN1nuIcWpoe6I_mG74jbwY_Vnz_PC_Iz-sv9-ubbnP79dv686YLvTCtM2yLQ68NgNISA9qeG9SgjI7RBBEtWlAYmY9MKhWE7U3kGiDaQVi7ZeKCfDjtzbUlV0NqGHYhTxOG5hjvjQa5QB9P0KHk3zPW5vapBhxHP2Geq2MWJBdyec__UQNcSy7l02l1QkPJtRYc3KGkvS9Hx8A9mXEvzCyBciczS_Hy-ca83WP8V_urQvwB14qK0Q</recordid><startdate>20160622</startdate><enddate>20160622</enddate><creator>McWilliams, R Stewart</creator><creator>Dalton, D Allen</creator><creator>Mahmood, Mohammad F</creator><creator>Goncharov, Alexander F</creator><general>American Physical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20160622</creationdate><title>Optical Properties of Fluid Hydrogen at the Transition to a Conducting State</title><author>McWilliams, R Stewart ; Dalton, D Allen ; Mahmood, Mohammad F ; Goncharov, Alexander F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c538t-81bef57800674ece9528e70687dd8c3d9e906ed1ad1466c3958d2700d9f399b13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Absorptivity</topic><topic>Diamond anvil cells</topic><topic>Hydrogen storage</topic><topic>Laser beam heating</topic><topic>Near infrared radiation</topic><topic>Optical properties</topic><topic>Spectra</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>McWilliams, R Stewart</creatorcontrib><creatorcontrib>Dalton, D Allen</creatorcontrib><creatorcontrib>Mahmood, Mohammad F</creatorcontrib><creatorcontrib>Goncharov, Alexander F</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>McWilliams, R Stewart</au><au>Dalton, D Allen</au><au>Mahmood, Mohammad F</au><au>Goncharov, Alexander F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optical Properties of Fluid Hydrogen at the Transition to a Conducting State</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2016-06-22</date><risdate>2016</risdate><volume>116</volume><issue>25</issue><spage>255501</spage><epage>255501</epage><pages>255501-255501</pages><artnum>255501</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We use fast transient transmission and emission spectroscopies in the pulse laser heated diamond anvil cell to probe the energy-dependent optical properties of hydrogen at pressures of 10-150 GPa and temperatures up to 6000 K. 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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2016-06, Vol.116 (25), p.255501-255501, Article 255501 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1258704 |
| source | American Physical Society Journals |
| subjects | Absorptivity Diamond anvil cells Hydrogen storage Laser beam heating Near infrared radiation Optical properties Spectra Wavelengths |
| title | Optical Properties of Fluid Hydrogen at the Transition to a Conducting State |
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