Streak camera imaging

II)Sweeping Image Camera. See under Smear Camera Streak Camera and Sweeping Image Camera... 

Although the laser is repetitively charged for firing on its own internal cycle (currently 55 seconds), the actual firing pulse of the laser is synchronized to the internal clock of the OMA. This is to enable the streaked image on the camera phosphor to appear during the 768 usees retrace interval between OMA target scans. 

Fig. 16. Signals obtained using a streak camera, (a) Image obtained from the streak camera measurements (1024 x 1344 pixels) where each pixel indicates the value of the optical density at the corresponding time and wavelength (in false colors, increasing absorbance from blue to red), (b) Spectrum measured 65 ps after the electron pulse, (c) Kinetic profile at 570 5 nm.

Fig. 6.64 Streak image of two subpicosecond pulses separately by 4 ps, measured with the femtosecond streak camera [761]...

The operation and application of streak cameras in fluorescence lifetime spectroscopy has been reviewed previously (see, e.g., Refs. 91 and 92). Streak cameras are useful in 2-D time-resolved imaging applications such as microscopy or multiwavelength array fluorometry. The operating principle is based on converting an optical pulse into a photoelectron pulse and spatially dispersing the electron image on a phosphor by means of a synchronized deflection voltage across two plates. 

Smear (Streak or Sweeping Image) Camera, used for studies of deton phenomena is described in Vol 2, p 06 under CAMERAS... 

Sweeping Image Camera. Same as Smear or Streak Camera... 

If the shock wave had a complex structure, it produced successive rotations of the free surface, and positions S2, S2 "... of the image S could be recorded with a "streak camera as a function of time. The measurements of the displacements SjS2, Sj 7, etc per-... 

Figure 8.2 Principle of the streak camera. w, window p, photocathode a, accelerating plates f focussing plates d, deflection plates i, image intensifier c, camera...

The imaging of ultrafast photoluminescence or slower processes (fluorescence, phosphorescence) can readily be carried out with special optoelectronic equipment. The technique allows one to record simultaneously the intensity, the spectral and the temporal responses of fluorescence by using ultrafast streak cameras. 

Microseconds to nanoseconds As previously mentioned, gated intensified vidicons can provide temporal resolutions as low as 40 nsec. New intensifiers, e.g., microchannel plates, may extend this range to 1-5 nsec or less. However, by far, the most useful tool for ns to ps spectroscopy is the streak camera, i.e., an ultra-rapid temporal-to-spatial electronic image sweeper (16). Streak cameras convert an optical signal, e.g., a spectrum, into... 

The development of the ultrafast streak camera (8) in the early 1970 s provided a continuous time base for the detection of transient photon signals within the picosecond timescale. Almost immediately the usefulness of image detectors became apparent. Instead of recording streak camera events on film, coupling of the streak camera through an image intensifier to an optical... 

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