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Two-Slit Interference, One Photon at a Time


Newsletter – Cricket Makes Photon Arrivals Audible

Two Slit Interference One Photon at a time

NOTE: For photon counting, this instrument requires an electronic counter with a frequency range of at least 0 - 1 MHz such as the B+K 200 MHz Universal Counter.

Photomultiplier tube: Hamamatsu R 212

Preamplifier-Discriminator: Amptek A-111

Interference Filter: 546 nm, 10 nm FWHM

All Slit Widths: 0.09 mm

Double Slit Separations: 0.35, 0.40, 0.45 mm

Laser (Class II): 670 ± 20 nm<1.0 mW

Universal Power Supply
Input: 110 - 230 VAC, 50 - 60 Hz
Output: 15 V DC

Optical Light Path: 1 meter

Overal Instrument Length: 52 inches

Learn about Two Slit's Cricket.