Single Photon Counting Physics Lab Experimental Instrument

This experimental system is designed for single-photon detection and low-light-level optical measurement. Utilizing pulse discrimination and digital counting techniques, the system provides a wide linear dynamic range and high-sensitivity photon counting capabilities.

The setup integrates a photon counting module, semiconductor cooling unit, optical assembly, optical power measurement device, and data acquisition software. It enables users to study photon detection principles, signal processing methods, and low-intensity optical measurements through practical experimentation.

• Single-photon detection techniques
• Photon counting and signal processing
• Low-light-level optical measurement
• Pulse discrimination analysis
• Digital counting methods
• Detector performance evaluation
• Dark count measurement
• Optical signal characterization

Spectral Response Range :

• 360–650 nm

Integration Time :

• 0–30 min adjustable

Maximum Count Rate :

• ≥ 10⁷ counts

Threshold Voltage :

• 0–2.56 V adjustable

Cooling Unit :

• Semiconductor temperature control system, capable of operation below −30°C

Optical Power Measurement Range :

• 20 μW / 200 μW selectable

Dark Count Rate :

• ≤ 30 cps at −20°C

System Components

• Photon Counting Module
• Semiconductor Cooling System
• Optical Assembly
• Optical Power Measurement Device
• Data Acquisition and Analysis Software

Optional Accessories

• Computer
• Printer