Ultrasonically induced Effects in Electroless Nickel Plating to Fabricate a Near-Field Optical Fiber Probe

摘要

We have studied the submicron size dependence of electroless nickel plating under ultrasonic irradiation with a frequency of 1 MHz to fabricate a near-field apertured probe. Using a new ultrasonic bath with a small water depth of 80 mm, we found that a nickel film with a hollow structure is coated on the flat clad end of a fiber probe. The diameter of the hollow is 12 μm much smaller than the ultrasonic wavelength in water.