發(fā)布時(shí)間：2018-06-04 02:38

  本文選題：光譜學(xué) + 飛秒激光�。� 參考：《中國(guó)激光》2017年04期

【摘要】：利用飛秒激光大氣成絲高強(qiáng)激光誘導(dǎo)熒光非線性光譜對(duì)碘單質(zhì)升華過(guò)程進(jìn)行了研究。研究結(jié)果發(fā)現(xiàn)飛秒光絲可誘導(dǎo)升華到空氣中的碘分子產(chǎn)生清晰特征熒光譜。通過(guò)監(jiān)測(cè)碘分子在341.6nm(D→X~1Σ_g~+躍遷)處的熒光譜線,利用時(shí)間分辨測(cè)量方法觀察到碘分子熒光強(qiáng)度隨著加熱溫度以及測(cè)量位置與固態(tài)碘樣品距離的變化而明顯變化,展示了光絲誘導(dǎo)熒光光譜技術(shù)應(yīng)用于物態(tài)變化規(guī)律探索的可行性。
[Abstract]:The sublimation process of iodine single substance was studied by femtosecond laser and high intensity laser induced fluorescence nonlinear spectroscopy. It is found that femtosecond optical filament can induce iodine molecules sublimated into air to produce clear characteristic fluorescence spectra. By monitoring the fluorescence lines of iodine molecules at the 341.6nm(D X ~ 1 危 g ~ transition, we observed that the fluorescence intensity of iodine molecules varies significantly with the heating temperature and the distance between the measured position and the solid iodine sample by time-resolved measurement. The feasibility of the application of filament-induced fluorescence spectroscopy in the exploration of the law of physical state change was demonstrated.
【作者單位】： 吉林大學(xué)電子科學(xué)與工程學(xué)院集成光電子國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(61235003,61427816)
【分類(lèi)號(hào)】：TQ124.61;O657.3
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本文編號(hào)：1975471