Design of microcontroller based system for automation of streak camera

Area of Science:

• Instrumentation
• Optoelectronics
• High-speed imaging

Background:

• The S-20 optical streak camera is a critical diagnostic tool for measuring ultrafast light phenomena.
• Manual operation of streak cameras can limit precision and speed in data acquisition.

Purpose of the Study:

• To develop a microcontroller-based automated system for the S-20 optical streak camera.
• To enhance control, synchronization, and data capture capabilities for ultrafast optical measurements.

Main Methods:

• An 8-bit microcontroller generates control signals and manages biasing voltages via DC-to-DC converters.
• A high-voltage ramp signal is created using a step generator and integrator, with adjustable slope.
• A programmable digital delay generator ensures synchronization with optical signals.
• A LABVIEW-based GUI facilitates user programming and image capture.

Main Results:

• The automated system successfully controls the S-20 optical streak camera.
• Generated high-voltage ramp signals with adjustable slopes for precise temporal resolution.
• Achieved synchronization of the ramp signal with optical signals using a digital delay generator.
• Enabled image display with intensity profiles and calibration using nanosecond and femtosecond lasers.

Conclusions:

• The developed microcontroller system effectively automates the S-20 optical streak camera.
• The system provides enhanced control and data acquisition for ultrafast optical phenomena.
• This automation improves the utility of the S-20 camera as a diagnostic tool.