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 405HP.
Probe tip is coated by Al (70nm)/sublayer V (20nm) .
Tip diameter uncoated by Al (tip aperture) 50-100 nm (75±25)
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||405-HP|
|Operating wavelength, nm||400-550|
|Mode Field Diameter||3.5 ± 0.5 µm @ 515 nm|
|Second Mode Cut-Off, nm||370 ± 20|
|Optical efficiency for wavelength 530 nm||5×10-6 – 5 x 10-5|
|Optical efficiency for working wavelength||~ (10-5 – 10-4)|