K-TEK Nanotechnology SNOM probes stand up to the most demanding applications, including infrared and UV/visible range. Our tips are made of high-quality polymers and also come in a variety of coatings to support your testing and imaging needs.
Material – single mode optical fiber Nufern 980HP.
Probe tip is coated by Al (70nm)/sublayer V (20nm) .
Tip diameter uncoated by Al (tip aperture) 200 – 300 nm (250±50)
Angle of fiber – about 20 degrees
Maximum optical input power – 400 microWatt
The probes are prepared by chemical etching method.
This method gives the optical efficiency 102 – 104 times better than those obtained by mechanical pulling.
GEOMETRICAL & MECHANICAL FIBER SPECIFICATIONS:
|Clad Diameter||125.0 ± 1.5 µm|
|Coating Diameter||245 ± 15 µm|
|Core-Clad Concentricity||< 0.5 µm|
|Coating/Clad Offset||≤ 5 µm|
|Coating Material||UV Cured, Dual Acrylate|
|Operating Temperature||-55 to +85 °C|
|Short-Term Bend Radius||≥ 6 mm|
|Long-Term Bend Radius||≥ 13 mm|
|Proof Test Level||≥ 200 kpsi (1.4 GN/m²)|
SNOM PROBE CHARACTERISTICS:
|Basic Nufern Fiber||980HP|
|Operating wavelength, nm||980-1600|
|Mode Field Diameter||4.2 ± 0.5 µm @ 980 nm
6.8 ± 0.5 µm @ 1550 nm
|Second Mode Cut-Off, nm||920 ± 30|
|Optical efficiency for wavelength 530 nm||~1%|
|Optical efficiency for working wavelength||~ (10-5 – 10-4)|