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The design of both active and passive micro/nano-sphere systems is performed by optimizing their sizes, spatial distribution and the other physical and geometrical parameters. In particular, rare earth doped spherical particles are designed in order to obtain distributed and highly efficient light sources for active sensors. The lasing characteristics of active silica glass microsphere are numerically...
Laser sources based on rare earth doped glasses are used in material processing, medical and surgical applications, remote sensing, spectroscopy, generation of ultrafast pulses, and so on. Fiber or planar waveguide laser sources are competitive with respect to other light sources, such as ion-doped crystal and bulk glass lasers, optical parametric oscillators, semiconductor and gas lasers for their...
The demand for efficient optical active devices operating in the near and medium infrared wavelength ranges is originated from different needs. This wavelength band is of strong interest in a number of applications as remote sensing, sensors, optical communication, medical and military technology. The paper is a review on the NIR and MID-IR fiber NIR, also with reference to the host materials and...
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