Complex Fiber Micro-Knots

Structural Analysis of Cell Membrane Complex of Hair Fiber by Micro X-ray Beam

A mammalian hair fiber consists of the medulla, cortex and cuticle from the center to the outside in this order [1]. The major mass of hair fiber is located in the cortical region, which mainly consists of keratin filaments and matrix proteins. On the outside of the cortical region, there is cuticle which has about 5 μm in thickness and consists of about 10 keratinized sheet-like-cells. There a...

All-fiber multimode interference micro-displacement sensor

We report an all-fiber micro-displacement sensor based on multimode interference (MMI) effects. The micro-displacement sensor consists of a segment of No-Core multimode fiber (MMF) with one end spliced to a segment of single mode fiber (SMF) which acts as the input. The other end of the MMF and another SMF are inserted into a capillary ferrule filled with index matching liquid. Since the refrac...

Micro-hole drilling with femtosecond fiber laser

In this paper, micro-hole drilling in ambient air is presented using fs fiber laser (750 fs & 1030 nm). Micro holes were fabricated in both transparent (glasses) and non-transparent materials (metals and tissues). Hole shape and morphology was characterized and evaluated with optical microscope and scanning electron microscopy (SEM). Debris-free micro holes with good roundness and no thermal da...

Fiber Laser for Micro Cutting of Metals

The fiber laser concept is proven technology for telecom applications where its single mode performance and reliability is essential. Newer generation diode-pumped fiber lasers are using pump diodes especially developed for telecom applications and therefore offer excellent controllability of the laser pulse length and pulse frequency. In recent years the output power of fiber lasers has increa...

Micro-Heterogeneity in Complex Liquids