We describe a technique that allows the improvement of the resolution of optical
microscopes for nanofiber measurements beyond the diffraction limit. It can be readily …

Single-mode optical nanofibers are a central component of a broad range of applications
and emerging technologies. Their fabrication has been extensively studied over the past …

In numerous applications of optical scanning microscopy, a reference tapered fiber lens with
high symmetry at sub-wavelength scale remains a challenge. Here, we demonstrate the …

We demonstrate a convenient and simple method to determine nanofiber diameters
nondestructively using a hemispherical microfiber tip probe. For a fixed-tip geometry and …

The forward scattering of light illuminating a transparent dielectric cylinder, such as a
tapered fiber, from the side can be understood as interference of the diffracted, reflected, and …

We present a direct experimental investigation of the optical field distribution around a
suspended tapered optical nanofiber by means of a fluorescent scanning probe. Using a …

We have constructed and evaluated a video microscope with a 150-× 150-μm field of view
for performing measurements of optical fiber geometry. The microscope consists of a frame …

We demonstrate a novel, simple, and comprehensive method for probing optical microfiber
surface and bulk distortions with subnanometer accuracy. The method employs a regular …

Optical fibers play a key role in many different fields of science and technology. In particular,
fibers with a diameter of several micrometers are intensively used in photonics. For these …

We demonstrate a method for making precise measurements of the diameter of a tapered
optical fiber with a sub-wavelength diameter waist (an optical nanofiber). The essence of the …