Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen.
Rotationally resolved zero-kinetic-energy (ZEKE) photoelectron spectra of the X g+2(v+=0,1) X g+1(v=0) bands of nitrogen have been recorded. The spectra show unexpected rotational-line intensities. The intensity distortions are explained by channel interactions. The strong S and U branches [(N+-J)=+...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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1992
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| _version_ | 1797082989243400192 |
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| author | Merkt, F Softley, T |
| author_facet | Merkt, F Softley, T |
| author_sort | Merkt, F |
| collection | OXFORD |
| description | Rotationally resolved zero-kinetic-energy (ZEKE) photoelectron spectra of the X g+2(v+=0,1) X g+1(v=0) bands of nitrogen have been recorded. The spectra show unexpected rotational-line intensities. The intensity distortions are explained by channel interactions. The strong S and U branches [(N+-J)=+2 and +4, respectively] of the (1-0) band borrow intensity from a nearly degenerate Rydberg state, converging to an electronic excited state of the ion, by a complex resonance mechanism. Field-induced rotational autoionization is shown to enhance the O branch and M branch [(N+-J)=-2 and -4] intensity of the (0-0) band. Recording ZEKE spectra with extraction fields of 10100 V/cm appears to be an attractive and powerful way of obtaining spectroscopic information on Rydberg states with simultaneously high principal quantum number n and high total-angular-momentum quantum number J. © 1992 The American Physical Society. |
| first_indexed | 2024-03-07T01:35:44Z |
| format | Journal article |
| id | oxford-uuid:95209c21-5484-4aab-abe4-6de711f009c1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:35:44Z |
| publishDate | 1992 |
| record_format | dspace |
| spelling | oxford-uuid:95209c21-5484-4aab-abe4-6de711f009c12022-03-26T23:44:00ZRotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:95209c21-5484-4aab-abe4-6de711f009c1EnglishSymplectic Elements at Oxford1992Merkt, FSoftley, TRotationally resolved zero-kinetic-energy (ZEKE) photoelectron spectra of the X g+2(v+=0,1) X g+1(v=0) bands of nitrogen have been recorded. The spectra show unexpected rotational-line intensities. The intensity distortions are explained by channel interactions. The strong S and U branches [(N+-J)=+2 and +4, respectively] of the (1-0) band borrow intensity from a nearly degenerate Rydberg state, converging to an electronic excited state of the ion, by a complex resonance mechanism. Field-induced rotational autoionization is shown to enhance the O branch and M branch [(N+-J)=-2 and -4] intensity of the (0-0) band. Recording ZEKE spectra with extraction fields of 10100 V/cm appears to be an attractive and powerful way of obtaining spectroscopic information on Rydberg states with simultaneously high principal quantum number n and high total-angular-momentum quantum number J. © 1992 The American Physical Society. |
| spellingShingle | Merkt, F Softley, T Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen. |
| title | Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen. |
| title_full | Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen. |
| title_fullStr | Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen. |
| title_full_unstemmed | Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen. |
| title_short | Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen. |
| title_sort | rotationally resolved zero kinetic energy photoelectron spectrum of nitrogen |
| work_keys_str_mv | AT merktf rotationallyresolvedzerokineticenergyphotoelectronspectrumofnitrogen AT softleyt rotationallyresolvedzerokineticenergyphotoelectronspectrumofnitrogen |