本文利用Cr:LiCAF可调谐激光器,经BBO晶体倍频,获得了 8~mJ、34~ns、370~nm的巨脉冲激光;并利用370~nm激光激发离 体结肠癌组织和正常组织进行组织的自体荧光实验,并作了对比和分 析,获得了对结肠癌变的早期诊断的很有价值的荧光光谱。
In this paper, 370~nm laser is produced with its energy 10~mJ and pulsewidth 34~ns by using a Q-switched and frequency-doubled Cr:LiCAF laser system. Then, we use 370~nm laser as exciting light source to analyze the auto-fluorescence spectra of the solid samples of large intestine carcinoma and normal large intestine tissue, and gain the very valuable auto-fluorescence spectra for early detection of precancerous changes in colon tissue.
参考文献
[1] | Johnson L F, Guggenheim H J, Thomas R A. Phonon-terminated optical masers, Phys. Rev., 1966, 149: 179 |
[2] | Payne S A, Chase L L, Smith L K et al. Laser performance of LiSrAlF6:Cr3+. J. Appl. Phys., 1989, 66: 1051 |
[3] | Payne S A, Chase L L, Smith L K. Flashlamp-pumped laser performance of LiCaAlF6:Cr3+. Optic and Quantum Electronics, 1990, 22: 259~268 |
[4] | Yang Yenkuang, Milton Brnbaum. Cr3+:Gd3Sc2Ga3O12 passive Q-switch for the Cr3+:LiCaAlF6 laser. Appl. Phys. Lett.,1994, 64(18) |
[5] | Sturge M D, Guggenheim H J. Phys. Rev. B,1970, 2: 2459 |
[6] | onios G I et al. Morphological model of human colon tissue fluorescence. IEEE Transactions on Biomedical Engineering,1996, 43(2): 113~121 |
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