LIGHT SOURCES
OPO module (Optical Parametric Oscillator) – system based on an optical parametric oscillator
spectral range
625 – 2000 cm-1
2350 – 4450 cm-1
4950 – 7140 cm-1
pulse length
ok. 10 ps
pulse spectral width
<4 cm-1
pulse repetition rate
<50 MHz
compatible detection modules
AFM-IR
sSNOM
QCL (Quantum Cascade Laser) – based on 4 chips emitting pulsed light for central wavelengths of 11.4 µm, 8.4 µm, 6.2 µm and 3.6 µm
spectral range
650 – 1800 cm-1
2700 – 3000 cm-1
compatible detection modules
AFM-IR
Diode lasers
wavelength
532 nm
633 nm
compatible detection modules
sSNOM in visible range
TERS
Raman
photoluminescence
DETECTION
Raman/TERS – Princeton Instruments detection system based on the IsoPlane SCT320 spectrometer and the liquid-cooled, ultra-sensitive PIXIS 100 camera
focal length
328 mm
aperture
F/4.1
spectral resolution of detection
7.5 cm-1 (for the diffraction grating 300 l/mm)
3.7 cm-1 (for the diffraction grating 600 l/mm)
1 cm-1 (for the diffraction grating 1800 l/mm)
IR detection – Infrared light detection is performed by a liquid nitrogen-cooled lead-cadmium-tellurium (HgCdTe, MCT) detector from InfraRed Associates
detection range
2 – 16 µm
VIS detection – detection of photoluminescence and scattered light
detection range
300 – 1050 nm
AFM-IR microscopy
sample table movement range (x, y, z)
40 × 50 × 15 mm
maximum scanning area (x, y)
100 × 100 µm
scanner range (z)
8 µm
light polarization control module
s and p polarization
sSNOM/TERS microscopy
sample table movement range (x, y, z)
40 × 50 × 15 mm
maximum scanning area (x, y)
100 × 100 µm
scanner range (z)
2.5 µm