Now showing items 1-5 of 5
| Abstract: | High resolution optogalvanic spectrum of the (11, 7) band in the first positive system of nitrogen molecule has been recorded from 17179 to 17376 cm- 1. Assignment of 432 rotational lines belonging to the 27 branches of this band has been carried out. |
| URI: | http://dyuthi.cusat.ac.in/purl/2446 |
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| Dyuthi-P0307.pdf | (304.6Kb) |
| Abstract: | Observation of laser induced two-photon photoemission optogalvanic (TPPOG) effect from tungsten electrode in a discharge cell using 564 nm radiation obtained from a pulsed dye laser is described. The magnitude of the POG signal is studied as a function of laser energy under various discharge parameters. Competition between one-photon and two-photon processes has been observed when nitrogen gas is used in the discharge cell. |
| URI: | http://dyuthi.cusat.ac.in/purl/2492 |
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| Dyuthi-P0296.pdf | (201.4Kb) |
| Abstract: | The photoemission optogalvanic (POG) effect has been investigated in a neon-neodymium hollow cathode discharge using cw laser excitation. Both positive and negative effects were observed. It was found that the amplitude of the POG signal was unstable near the instability region of the discharge. |
| URI: | http://dyuthi.cusat.ac.in/purl/2448 |
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| Dyuthi-P0309.pdf | (372.7Kb) |
| Abstract: | A two-photon induced photoemission optogalvanic effect which brings about a change in the discharge voltage when a pulsed dye laser beam is focused on a tungsten electrode has been described. The experiment is performed with N2, NO2 and Ar discharges. The magnitude of the signal voltage is studied as a function of laser energy and discharge current. The effective quantum efficiency in the discharge is found to be larger than that in the vacuum condition. |
| URI: | http://dyuthi.cusat.ac.in/purl/2442 |
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| Dyuthi-P0303.pdf | (183.8Kb) |
| Abstract: | A two-photon induced photoemission optogalvanic effect which brings about a change in the discharge voltage when a pulsed dye laser beam is focused on a tungsten electrode has been described. The experiment is performed with N2, NO2 and Ar discharges. The magnitude of the signal voltage is studied as a function of laser energy and discharge current. The effective quantum efficiency in the discharge is found to be larger than that in the vacuum condition. |
| URI: | http://dyuthi.cusat.ac.in/purl/2437 |
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| Dyuthi-CPG48.pdf | (188.4Kb) |
Now showing items 1-5 of 5
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