The table below summarizes the specifications of QUARTET (for measuring out-of-plane displacement).

QUARTET (Out-of-plane Z)
NESD (Noise Equivalent Surface Displacement)
1. 10-5 nm /Hz1/2

Detection Bandwidth Upper limit

20 MHz or 50 MHz
Detection Bandwidth Lower limit
100 kHz or 1 MHz
Fiber multimode - 50 micron diameter
Spot diameter on sample
60 micron to 500 micron (f=50mm to 500 mm)
Optical stand-off
From 100 mm to 500 mm
Diameter of collecting aperture
1" (25mm) to 2" (50mm)
Depth of focus
from 0.5 mm to 50 mm
AC signal (Full bandwidth)
Calibration Level
Suitable laser power
500 mW to 1.5 W (internal) - Up to 15 W external
Electrical requirement
110/220 V, 50/60 Hz
Dimensions / Weight 381mm x 381mm x 152mm - 15 kg
2D scanning set-up including PC, software, digitalization card and X-Y translations

See QUARTET brochure (in resources) for more detailed specifications.

Due to Bossa Nova Technologies continuous improvement policy, specifications are subject to change without notice.

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