第5届光谱烧孔和相关光谱学国际会议(International Meeting on Hole Burning and Relat-ed Spectroscopies:Science and Applications,简称HBRS)于1996年9月13～17日在美国明尼苏达州布雷纳德市召开。会议由美国依阿华州立大学主办,会...第5届光谱烧孔和相关光谱学国际会议(International Meeting on Hole Burning and Relat-ed Spectroscopies:Science and Applications,简称HBRS)于1996年9月13～17日在美国明尼苏达州布雷纳德市召开。会议由美国依阿华州立大学主办,会议主席为美国依阿华州立大学教授G.J.Small.约有80人与会。光谱烧孔是用线宽很窄的激光束照射谱线非均匀加宽介质。展开更多
By using an Ar+ ion laser, a tunable Rh 6G dye laser(Linewidth: 0.5 cm -1) and a Coherent 899-21 dye laser as light sources and using a monochromator and a phase-locking amplifier, the optical properties of Eu 3+∶Y_2...By using an Ar+ ion laser, a tunable Rh 6G dye laser(Linewidth: 0.5 cm -1) and a Coherent 899-21 dye laser as light sources and using a monochromator and a phase-locking amplifier, the optical properties of Eu 3+∶Y_2SiO_5 crystal were detected. Persistent spectral hole burning (PSHB) were also observed in 5D_0-7F_0 transition in the crystal at the temperature of 16 K. For 15 mW dye laser (Wavelength: 579.62 nm) burning the crystal for 0.1 s a spectral hole with about 80 MHz hole width were detected and the hole can been keep for longer than 10 h.展开更多
The photo-voltage signals in bacteriorhodopsin(bR)excited by 1064nm pulse laser are different from those by 532 or 355 nm.It shows that the positive and negative photoelectric signals are produced by the motion of the...The photo-voltage signals in bacteriorhodopsin(bR)excited by 1064nm pulse laser are different from those by 532 or 355 nm.It shows that the positive and negative photoelectric signals are produced by the motion of the positive and negative charges,respectively,and more energy is needed for producing the positive charges than the negative.The mechanism of light-induced charge generation and charge transfer in bR was studied and analyzed by measuring the photoelectric signals with different impedance of measuring circuit and different pulse-width of 532 nm laser as pump light.展开更多
By using an Ar^＋ ion laser, a tunable Rh 6G dye laser （linewidth 0.5cm^-1） pumped by the second harmonic of a YAG：Nd laser and a Coherent 899-21 dye laser as light sources and using a monochromator, a phase-lockin...By using an Ar^＋ ion laser, a tunable Rh 6G dye laser （linewidth 0.5cm^-1） pumped by the second harmonic of a YAG：Nd laser and a Coherent 899-21 dye laser as light sources and using a monochromator, a phase-locking amplifier and a computer as the data detecting system, we detect the optical properties of Eu^3＋-doped Y2SiO5 crystal. Persistent ,spectral hole burning （PSHB） are observed in the Eu^3＋ ions spectral lines （^5 Do-T Fo transition） in the crystal at the temperature of 16K. For 15mW dye laser burning the crystal for 0.1 s spectral holes with hole width about 80 MHz both at 579.62nm and at 579.82nm are detected and the holes can remain for a long time, more than 10h.展开更多
文摘第5届光谱烧孔和相关光谱学国际会议(International Meeting on Hole Burning and Relat-ed Spectroscopies:Science and Applications,简称HBRS)于1996年9月13～17日在美国明尼苏达州布雷纳德市召开。会议由美国依阿华州立大学主办,会议主席为美国依阿华州立大学教授G.J.Small.约有80人与会。光谱烧孔是用线宽很窄的激光束照射谱线非均匀加宽介质。
文摘By using an Ar+ ion laser, a tunable Rh 6G dye laser(Linewidth: 0.5 cm -1) and a Coherent 899-21 dye laser as light sources and using a monochromator and a phase-locking amplifier, the optical properties of Eu 3+∶Y_2SiO_5 crystal were detected. Persistent spectral hole burning (PSHB) were also observed in 5D_0-7F_0 transition in the crystal at the temperature of 16 K. For 15 mW dye laser (Wavelength: 579.62 nm) burning the crystal for 0.1 s a spectral hole with about 80 MHz hole width were detected and the hole can been keep for longer than 10 h.
基金Supported by the National Natural Science Foundation of China under Grant No.19834040.
文摘The photo-voltage signals in bacteriorhodopsin(bR)excited by 1064nm pulse laser are different from those by 532 or 355 nm.It shows that the positive and negative photoelectric signals are produced by the motion of the positive and negative charges,respectively,and more energy is needed for producing the positive charges than the negative.The mechanism of light-induced charge generation and charge transfer in bR was studied and analyzed by measuring the photoelectric signals with different impedance of measuring circuit and different pulse-width of 532 nm laser as pump light.
基金Supported by the National Natural Science Foundation of China under Grant Nos 69807001 and 19834030.
文摘By using an Ar^＋ ion laser, a tunable Rh 6G dye laser （linewidth 0.5cm^-1） pumped by the second harmonic of a YAG：Nd laser and a Coherent 899-21 dye laser as light sources and using a monochromator, a phase-locking amplifier and a computer as the data detecting system, we detect the optical properties of Eu^3＋-doped Y2SiO5 crystal. Persistent ,spectral hole burning （PSHB） are observed in the Eu^3＋ ions spectral lines （^5 Do-T Fo transition） in the crystal at the temperature of 16K. For 15mW dye laser burning the crystal for 0.1 s spectral holes with hole width about 80 MHz both at 579.62nm and at 579.82nm are detected and the holes can remain for a long time, more than 10h.
