Resolution Limitations And Optimization Of The LLNL Streak Camera Focus

R. A. Lerche; R. L. Griffith

doi:10.1117/12.942239

4 February 1988 Resolution Limitations And Optimization Of The LLNL Streak Camera Focus

R. A. Lerche, R. L. Griffith

Proceedings Volume 0832, High Speed Photography, Videography, and Photonics V; (1988) https://doi.org/10.1117/12.942239
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

The RCA C73435 image tube is biased at voltages far from its original design in the LLNL ultrafast (10 ps) streak camera. Its output resolution at streak camera operating potentials has been measured as a function of input slit width, incident-light wavelength, and focus-grid voltage. The temporal resolution is insensitive to focus-grid voltage for a narrow (100 pm) input slit but is very sensitive to focus-grid voltage for a wide (2 mm) input slit. At the optimum wide-slit focus voltage, temporal resolution is insensitive to slit width. Spatial resolution is nearly independent of focus-grid voltage for values that give good temporal resolution. Both temporal and spatial resolution depend on the incident-light wavelength. Data for 1.06-μm light show significantly better focusing than for 0.53-μm light. Streak camera operation is simulated with a computer program that calculates photoelectron trajectories. Electron ray tracing describes all of the observed effects of slit width, incident-light wavelength, and focus-grid voltage on output resolution.

Citation Download Citation

R. A. Lerche and R. L. Griffith "Resolution Limitations And Optimization Of The LLNL Streak Camera Focus", Proc. SPIE 0832, High Speed Photography, Videography, and Photonics V, (4 February 1988); https://doi.org/10.1117/12.942239

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