The fabrication of an optical cavity at the distal end of an optical fiber has been achieved by Langmuir–Blodgett (LB) deposition of tricosanoic acid. This technique allows nanometer-scale control over the cavity length to a total thickness of ∼0.5 µm . The cavity has been shown to act interferometrically and, thus, has potential sensing applications.
© 2001 Optical Society of America
(060.2310) Fiber optics and optical communications : Fiber optics
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
N. D. Rees, S. W. James, S. E. Staines, R. P. Tatam, and G. J. Ashwell, "Submicrometer fiber-optic Fabry–Perot interferometer formed by use of the Langmuir–Blodgett technique," Opt. Lett. 26, 1840-1842 (2001)