For some medical and semiconductor applications, a small/very small tip is advisable for conducting reflectance measurements. Avantes offers two standard diameters of small-tip reflection probes: 1.5 and 2.5mm, with each tip generally being 100mm in length.
The probe is configured with an illumination leg with six 200 μm fiber cables that connect to a fiber-coupled light source and a single 200 μm read fiber cable to measure the reflection via connection to a spectrometer.
A special angled fiber holder (AFH-15) is available for the 1.5mm diameter reflection probe. This device enables reflection measurements under angles of 15, 30, 45, 60, 75, and 90 degrees.
Technical Data
Fibers - 7 fibers 200 µm core, 6 light-fibers, 1 read fiber, N.A.= 0,22. Standard 2m length, splitting point in the middle
Wavelength range - 200-2500 nm (UV/VIS/NIR)
Connectors - SMA905 connectors (2x)
Probe end - Stainless steel cylinder, 100 mm long x 1,5 or 2,5 mm diameter
Jacketing - The optical fibers are protected by a Kevlar reinforced PTFE jacket with PVC
sleeving. OD: 3.8 mm
Temperature - -20ºC to 65ºC
Bending - Minimum bend radius: short term (few seconds) 20 mm, long term: 120 mm