Rotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogen
Rotationally resolved zero-kinetic-energy (ZEKE) photoelectron spectra of the X^2 Σ_(g)^(+) (V^(+) = 0,1)← X^(1)Σ_(g)^(+) (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...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
1992
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| _version_ | 1797078445483622400 |
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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^2 Σ_(g)^(+) (V^(+) = 0,1)← X^(1)Σ_(g)^(+) (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^(+) 0 J^(primeprime)) = +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^(+) 0 J^(primeprime)) = -2 and -4] intensity of the (O-O) band. Recording ZEKE spectra with extraction fields of 10-100V/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. |
| first_indexed | 2024-03-07T00:31:56Z |
| format | Journal article |
| id | oxford-uuid:801b37c3-ce76-4b7c-8a0f-baced0ddd661 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:31:56Z |
| publishDate | 1992 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:801b37c3-ce76-4b7c-8a0f-baced0ddd6612022-03-26T21:21:12ZRotationally resolved zero-kinetic-energy photoelectron spectrum of nitrogenJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:801b37c3-ce76-4b7c-8a0f-baced0ddd661Chemistry & allied sciencesPhysical & theoretical chemistryEnglishOxford University Research Archive - ValetAmerican Physical Society1992Merkt, FSoftley, TRotationally resolved zero-kinetic-energy (ZEKE) photoelectron spectra of the X^2 Σ_(g)^(+) (V^(+) = 0,1)← X^(1)Σ_(g)^(+) (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^(+) 0 J^(primeprime)) = +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^(+) 0 J^(primeprime)) = -2 and -4] intensity of the (O-O) band. Recording ZEKE spectra with extraction fields of 10-100V/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. |
| spellingShingle | Chemistry & allied sciences Physical & theoretical chemistry 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 |
| topic | Chemistry & allied sciences Physical & theoretical chemistry |
| work_keys_str_mv | AT merktf rotationallyresolvedzerokineticenergyphotoelectronspectrumofnitrogen AT softleyt rotationallyresolvedzerokineticenergyphotoelectronspectrumofnitrogen |