Structure

PAN-style slider (scanner moved by piezoelectric motors) 

Scan Range 

1.2 µm × 1.2 µm 

XY repeatability 

< 0.1 nm (fine motor), < 10 nm (coarse motor) 

Accuracy

< 0.01 nm (fine motor), < 10 µm (coarse motor) 

Resolution encoder 

No encoder 

Minimum step 

No encoder 

Z resolution 

0.0018 nm 

Z travel 

1.4 µm 

Recommended Sample Size 

6 mm × 6 mm, thickness 1.2 mm 

Mounting System 

Flag-style sample holder 

XY Stage Travel Range 

3 mm × 3 mm (coarse motor) 

Z Stage Travel Range 

7 mm (coarse motor) 

Vision Path (Tip approach on the sample) 

Optical microscope  

Objective Lens (Tip approach on the sample) 

10× optical objective 

CCD camera 1 (Tip approach on the sample) 

2.3 Megapixel sensor 

CCD camera 2 (Tip navigation on the sample) 

5 µm resolution on the sample surface 

Vision Path (Optical injection and collection) 

2× independent optical paths that include mirrors, filters, and polarization rotators. They enable inserting and collecting light into the SPM tunnelling junction (in UHV), as well as controlling light polarization and intensity. 

Mirrors (Optical injection and collection) 

2× Al-coated parabolic and flat mirrors. Parabolic mirrors are mounted onto the SPM head and can be moved in-situ through piezoelectric motors. NA = 0.4 per mirror. 

Optical filters (Optical injection and collection) 

Depending on the type of experiment: Neutral density, long pass, band pass, notch filters, and analyzer. 

Other optical elements (Optical injection and collection) 

Depending on the type of experiment: Waveplates, power meter, CCD camera, avalanche photo detector, collimating lenses, flat mirrors and fiber adapters. 

CCD camera 3 

Andor iDUS 401 BVF 

Back illuminated CCD, cooled to -80°C 

1024 × 127 pixels, pixel size 26 µm × 26 µm 

Optical detection (CCD camera 3) 

Spectral coverage from 300 nm to 1000 nm 

Quantum efficiency (CCD camera 3) 

28% at 300 nm, 59% at 500 nm, 90% at 770 nm, 60% at 900 nm and 13% at 1000 nm 

Streak camera 

Hamamatsu C16190 equipped with ORCA-FLASH4.0 Digital CMOS camera and: 
- Synchroscan unit M16911-01 (synchronized at 80,000 MHz): temporal resolution (at sweep time) of < 800 fs (60 ps), < 10 ps (200 ps), < 30 ps (600 ps), < 60 ps (1200 ps), < 120 ps (2083 ps). 
- Slow single sweep unit M16913-01: temporal resolution of < 20 ps at 1.2 ns to 1 ms sweep time. 

Optical detection (Streak camera) 

Spectral coverage (streak tube) from 250 nm to 800 nm 

Quantum efficiency (Streak camera) 

25% at 250 nm, 53% at 400 nm, 41% at 500 nm, 16% at 700 nm and 0.1% at 800 nm (streak tube) 

Gratings (at the spectrograph connected to the CCD camera 3 and Streak camera) 

Andor Kymera 328i (with TRUERES) 

50 gr/mm ruled grating blazed at 600 nm 

300 gr/mm ruled grating blazed at 500 nm 

300 gr/mm holographic grating blazed at 1200 nm 

1700 gr/mm holographic grating blazed at 530 nm