Picosecond streak camera fluorometry - A review
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چکیده
منابع مشابه
A sub-picosecond accumulating streak camera for x-rays
An x-ray streak camera system uses a laser triggered photo-conductive switch to synchronize the high voltage ramp applied to its sweep plates to the photo-excitation of a sample. This technique allows the jitter between successive sweeps to be kept below 100 fs compared to over 1 ps using classical methods. By accumulating a stable pulsed x-ray signal over many sweeps, a very high dynamic range...
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We have developed an averaging picosecond x-ray streak camera using a dc-biased photoconductive switch as a generator of a high-voltage ramp. The streak camera is operated at a sweep speed of up to 8 ps/mm, shot-to-shot jitter is less than 61 ps. The streak camera has been used to measure the time history of broadband x-ray emission from an ultrashort pulse laser-produced plasma. Accumulation o...
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The spectral evolution of three photoactive proteins has been investigated by measuring the fluorescence with good temporal and wavelength resolution and a high signal-to-noise ratio. Upon excitation at 400 nm wild-type (wt) PYP both at neutral pH and in the low-pH blueshifted pBdark state exhibited a strong quenching of the fluorescence, the major part of which could be described by lifetimes ...
متن کاملModeling Streak Camera Sweep Speeds
On the OMEGA laser system at the University of Rochester's Laboratory for Laser Energetics (LLE), six P5 10 streak cameras measure the pulse shape of the 60 OMEGA beam lines. These cameras use a photocathode to convert an optical signal into an electron beam. A voltage ramp then sweeps this electron beam across a phosphor screen which is in turn imaged by a CCD. Currently, 120 images of an eigh...
متن کاملStreak Camera for Strong-Field Ionization.
Ionization of an atom or molecule by a strong laser field produces suboptical cycle wave packets whose control has given rise to attosecond science. The final states of the wave packets depend on ionization and deflection by the laser field, which are convoluted in conventional experiments. Here, we demonstrate a technique enabling efficient electron deflection, separate from the field driving ...
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ژورنال
عنوان ژورنال: IEEE Journal of Quantum Electronics
سال: 1983
ISSN: 0018-9197,1558-1713
DOI: 10.1109/jqe.1983.1071909