TY - JOUR
T1 - Characterization of ultra-weak fluorescence using picosecond non-collinear optical parametric amplifier
AU - Du, Shifeng
AU - Zhang, Dongxiang
AU - Shi, Yuxian
AU - Li, Qinan
AU - Feng, Baohua
AU - Han, Xiaofeng
AU - Weng, Yuxiang
AU - Zhang, Jing Yuan
PY - 2009/5/1
Y1 - 2009/5/1
N2 - We report a technique for characterization of ultra-weak fluorescence based on a 355-nm pumped picosecond non-collinear optical parametric amplifier (OPA). In the experiment, we effectively reduced the strong super-fluorescence background by using a series of methods. With the picosecond OPA as the pre-amplifier and the gating pulse, the decay of the fluorescence of Rhodamine 6G dye in ethanol was measured and the fluorescence lifetime was found to be about 941 ps. The gain factor of this parametric fluorescence amplifier was measured to be ∼4.2 × 106, while the energy detection limit was ∼160 aJ per pulse within a 15-ps gating pulse.
AB - We report a technique for characterization of ultra-weak fluorescence based on a 355-nm pumped picosecond non-collinear optical parametric amplifier (OPA). In the experiment, we effectively reduced the strong super-fluorescence background by using a series of methods. With the picosecond OPA as the pre-amplifier and the gating pulse, the decay of the fluorescence of Rhodamine 6G dye in ethanol was measured and the fluorescence lifetime was found to be about 941 ps. The gain factor of this parametric fluorescence amplifier was measured to be ∼4.2 × 106, while the energy detection limit was ∼160 aJ per pulse within a 15-ps gating pulse.
KW - Energy detection limit
KW - Fluorescence amplification
KW - Fluorescence lifetime
KW - Gain
KW - Picosecond optical parametric amplifier
UR - http://www.scopus.com/inward/record.url?scp=62349121202&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2009.01.016
DO - 10.1016/j.optcom.2009.01.016
M3 - Article
AN - SCOPUS:62349121202
SN - 0030-4018
VL - 282
SP - 1884
EP - 1887
JO - Optics Communications
JF - Optics Communications
IS - 9
ER -