Optical-Optical Double Resonamce of the Na2 (7d)sdg State

• Main Authors: Juang, Kae-Iuan, 莊凱淵
• Other Authors: Whang, Thou-Jen
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/41169654046902056506

碩士 === 國立成功大學 === 化學系 === 88 === ABSTRACT Optical—Optical Double Resonance spectroscopy has been proven to be a very powerful technique for studying gerade—parity high Ryberg singlet states of alkali molecules. There are two experiment of reports concerning about the (7d)1g of Na2, and 7 vibrational levels of the state have been confirmed. This work used two tunable pulse dye lasers to detect higher vibrational levels ( v>7 ) of Na2 (7d)1g state by OODR fluorescence depletion method. We described as the follow processes: B 1Πu ( v’, J’ ) ← X 1Σ+g ( v ”, J” ) + hν1 ( PUMP ) (7d) 1g ( v, J ) ← B 1Πu ( v’, J’ ) + hν2 ( PROBE ) The detection method of this experiment is below: B 1Πu ( v’, J’ )  X 1Σ+g ( v ”, J” ) + hν3(Fluo.) We have observed 66 rovibrational levels,including 9 vibrational levels of the (7d)1g state, and confirmed the 7-15 vibrational levels by 1995’s experiment results. The Dunham coefficients and Rydberg-Klein-Ress (RKR) potential energy curves of the (7d)1g state are also obtained.