The optical gain mechanism in solid conjugated polymers
We report on stimulated emission from a solid conjugated methyl-substituted ladder-type poly(paraphenylene). The threshold for stimulated emission as well as the spectral narrowing is measured. Upon exciting within the low energy tail of the S1-S0 (0–0) absorption band narrow emission lines offset f...
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| Veröffentlicht in: | Applied physics letters 1998-06, Vol.72 (23), p.2933-2935 |
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| container_end_page | 2935 |
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| container_issue | 23 |
| container_start_page | 2933 |
| container_title | Applied physics letters |
| container_volume | 72 |
| creator | Schweitzer, B. Wegmann, G. Giessen, H. Hertel, D. Bässler, H. Mahrt, R. F. Scherf, U. Müllen, K. |
| description | We report on stimulated emission from a solid conjugated methyl-substituted ladder-type poly(paraphenylene). The threshold for stimulated emission as well as the spectral narrowing is measured. Upon exciting within the low energy tail of the S1-S0 (0–0) absorption band narrow emission lines offset from the excitation by the energies of the dominant vibrational modes are observed. From these measurements we conclude that vibronic sublevels play a major role in the optical gain mechanism. Hence, the gain mechanism can be explained in terms of molecularly excited states. |
| doi_str_mv | 10.1063/1.121498 |
| format | Article |
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The threshold for stimulated emission as well as the spectral narrowing is measured. Upon exciting within the low energy tail of the S1-S0 (0–0) absorption band narrow emission lines offset from the excitation by the energies of the dominant vibrational modes are observed. From these measurements we conclude that vibronic sublevels play a major role in the optical gain mechanism. Hence, the gain mechanism can be explained in terms of molecularly excited states.</abstract><doi>10.1063/1.121498</doi><tpages>3</tpages></addata></record> |
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| ispartof | Applied physics letters, 1998-06, Vol.72 (23), p.2933-2935 |
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| language | eng |
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| source | AIP_美国物理联合会期刊回溯（NSTL购买） |
| title | The optical gain mechanism in solid conjugated polymers |
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