# OPTICAL STARK EFFECTS IN THE STIMULATED RAMAN SPECTRUM OF $O_{2}^{*}$

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 Title: OPTICAL STARK EFFECTS IN THE STIMULATED RAMAN SPECTRUM OF $O_{2}^{*}$ Creators: Hill, R. A.; Owyoung, A.; Esherick, P. Issue Date: 1983 Publisher: Ohio State University Abstract: Nonresonant optical Stark effects are observed in the high resolution ($0.002 cm^{-1})$ stimulated Raman spectra of the pure spin, rotational, and vibrational bands of $O_{2}$ at focused pump laser intensities $>3 GW/cm^{2}$. Differences between the polarized and depolarized Raman spectra arise since the magnetic quantum number selection rules $\Delta M_{J} = 0$ and $\Delta M_{J} = \pm 1$ apply, respectively. Optical Stark effects in $^{3}\Sigma$ molecules (e.g., oxygen) differ somewhat from that observed for $^{1}\Sigma$ molecules (nitrogen) because of inversion of the $M_{J} = 0$ and 1 sublevels of the (J,N) =(1,1) rotational state. Further, identical shifts of the $M_{J} = 1$ sublevels of the (1,1) and (2,1) rotational states result in polarized $^{Q}P(2,1)$ and $^{Q}R(1,1)$ lines that exhibit no second order optical Stark effect. $^{*}$This work is supported by the U.S. Department of Energy. Description: Author Institution: Sandia National Laboratories Division URI: http://hdl.handle.net/1811/12042 Other Identifiers: 1983-WG-07