C2830 Picosecond Streak Camera

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This is a Hamamatsu C2830 streak camera system consisting of:

• C2830 Streak Camera with Power Supply
• M2547 Fast Sweep Unit
• M2548 Slow Sweep Unit
• A1976-01 Input Optics
• A2866 Output Optics with Nikon F-mount
• C1097 Delay Unit
• C4547 Streak Trigger Unit
• User Manuals
• Factory Calibration and Test Data

Streak cameras are high-speed light detectors which enable direct measurement of light phenomena with unsurpassed temporal resolution. They can simultaneously measure time, position (or wavelength) and light intensity, and process the data in real-time using a dedicated read-out system.

Operating Principle

The streak camera converts incident light into electrons and performs a high-speed sweep (deflecting electrons from top to bottom), enabling detection of the time variation of the incident light intensity by converting these into different positions on the screen. (See figure below.)

The light pulse to be measured is focused onto the photocathode of the streak tube through the slit, where the photons are converted into a number of electrons proportional to the intensity of the incident light. These electrons are accelerated and conducted towards the phosphor screen, and a high-speed voltage which is synchronized to the incident light is applied. The electrons are swept at high speed from top to bottom and are then multiplied in the MCP (micro-channel plate), after which they are bombarded against the phosphor screen of the streak tube and converted to an optical image.

The optical image which appears on the phosphor screen is called a streak image, and shows the intensity distribution of the incident light, by which the positions of the electrons can be determined in the perpendicular direction over the passage of time. Using this method, the temporal intensity distribution of the light being measured can be displayed as the spatial intensity distribution on the phosphor screen.

Click Here to Download Guide to Streak Cameras

C2830 Streak Camera

The Streak Camera can be used with either of two plug-in Sweep Units: a fast sweep (for better than 10 ps resolution) or a slow sweep (for better than 100 ps resolution). In addition, the C2830 has a 100 ns high-speed electronic shutter which eliminates unnecessary incident light during the non-sweep period and makes it possible to do sampling measurements on continuous phenomena.

Click Here to Download C2830 Brochure

Click Here to Download Optical Input Transmittance Graph

C4547 Streak Trigger Unit

This creates gate trigger signals and streak trigger signals from an external trigger signal, and supplies them to the single sweep unit. It is equipped with a divider function, enabling external trigger signals with a higher frequency than that of the sweep repetition frequency to be used.

C1097 Delay Unit

This unit can be used to align the operation timing of the streak camera with the target phenomenon.

Applications

• Research involving free electron lasers and various other types of pulsed lasers
• Plasma light emission, radiation, laser ablation, combustion and explosions
• Fluorescence lifetime measurement, transient absorption measurement, time-resolved Raman spectroscopy
• Lidar, Thomson scattering, laser distance measurement

Features

• Designed for single sweep operations
• Covers a wide time range from 500 ps to 1 ms (using both fast and slow sweep plug-in units)
• Temporal resolution:
  Fast Sweep Unit, better than 10 ps
  Slow Sweep Unit, better than 100 ps
• Simultaneous measuring of time, position (or wavelength) and light intensity
• High sensitivity (single photoelectron detectability)
• High-speed gate function