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0.8μmリョウイキ ニオケル ICI オヨビ Ibrブンシ ノ レーザブンコウ 0.8μm領域におけるICIおよびIBr分子のレーザ分光 High-Resolution Laser Spectroscopy of the A^3II_1←X^1Σ^+ System of IBr and ICI in the 0.8μm region 行谷, 時男 823 ユキヤ, トキオ 西宮, 信夫 824 ニシミヤ, ノブオ 鈴木, 正夫 825 スズキ, マサオ YUKIYA, Tokio 826 NISHIMIYA, Nobuo 827 SUZUKI, Masao 828 The Doppler-limited absorption spectrum of the vib-rotational lines in the A^3II_1←X^1Σ^+system of ICl and IBr were measured in the region from 11200 to 13300 cm^<-1> using a Ti : sapphire ring laser. The P, Q and R-branch lines of J=10 to 100 belonging to the v'←V"=(0～7)←(2～7) of ICl and (3～20)←(1～6) of IBr progressions were assigned. The hyperfine splittings caused by the nuclear spin coupling effects of I atom were observed. A formula to describe the nuclear hyperfine splittings for the high J rotational transitions in the A-X system was derived using the first order perturbation theory. The quadrupole coupling constants eQq'_1 and eQq'_2 in the A state of ICl and IBr were estimated from the observed line splittings of the P- and R- branches. The spectroscopic constants T'_v, B'_<ve/f>, D'_v and H'_v of the vibrational levels in the A state were calculated from the observed transition wavenumbers by a least squares fitting procedure. The Dunham coefficients for the X states of ICl and IBr were also determined. The calculated line positions of the P, Q and R-branches agreed with those observed within the accuracies of the wave-number measurements of 0.005 cm^<-1>. 11 KJ00002353313 論文 Article departmental bulletin paper 1997 application/pdf 東京工芸大学工学部紀要 1 20 73 80 The Academic Reports, the Faculty of Engineering, Tokyo Polytechnic University AN00159741 03876055 https://kougei.repo.nii.ac.jp/record/301/files/KJ00002353313.pdf https://kougei.repo.nii.ac.jp/records/301 jpn