What are photonic crystal fibers used for?
Applications for photonic crystal fibers include spectroscopy, metrology, biomedicine, imaging, telecommunication, industrial machining and military technology. Photonic crystal fiber is also known as microstructured, or holey, fiber.
What is photonic laser?
Photonics, also called optoelectronics, is a rapidly evolving field that combines optical and electronics phenomena into tiny lasers, optical sensors and high-brightness light-emitting diodes. The technology initially sparked an explosion in the fibre-optic communications market.
How does a Raman laser work?
Raman spectroscopy works by shining a monochromatic light source—usually a laser—onto a sample and detecting the scattered light. Plotting the intensity of the shifted light against the frequency produces a Raman spectrum of the sample.
What is the difference between photonic crystal Fibres and conventional Fibres?
The second class of fibers is referred to as photonic band-gap fibers, which includes hollow-core PCF. Light guidance in hollow cores offers the potential for reduced scattering, lower nonlinearity, and potentially lower loss than conventional fibers.
What are the different types of photonic crystals?
Photonic crystals are composed of periodic dielectric, metallo-dielectric—or even superconductor microstructures or nanostructures that affect electromagnetic wave propagation in the same way that the periodic potential in a semiconductor crystal affects the propagation of electrons, determining allowed and forbidden …
Is photonics same as optics?
What is the difference between optics and photonics? Optics is a general area of physics covering a wide range of topics related to the study of light. Optics includes such subfields as geometrical optics, physical optics, and quantum optics. Photonics is a subset of the optics discipline.
Where is photonics used?
Photonics is everywhere; in consumer electronics (barcode scanners, DVD players, remote TV control), telecommunications (internet), health (eye surgery, medical instruments), manufacturing industry (laser cutting and machining), defense and security (infrared camera, remote sensing), entertainment (holography, laser …
Can photonic crystal fibers be used for chemical analysis?
Application of photonic crystals and photonic crystal fibers (PCF) for chemical analysis is a new, rapidly growing field of analytical chemistry. The aim of this review is to summarize pros and cons of PCF combination with normal Raman and surface-enhanced Raman spectroscopy (SERS) regarding to chemical analysis.
What are the applications of Raman lasers?
Examples of applications of Raman lasers are: A fiber Raman laser, or possibly a cascade of Raman fiber lasers, can be used for pumping an erbium-doped fiber amplifier. A 589-nm Raman laser can be used for a laser guide star in the form of a sodium beacon for atmospheric correction in an astronomical observatory.
What is a Raman-active medium?
The Raman-active medium is usually either an optical fiber or a bulk crystal, but sometimes also a gas. The long interaction length in fibers makes it easy to exceed the threshold, particularly if a low-loss laser resonator is built.
What are the applications of PCF with Raman spectroscopy?
Although the application of RI and transmission (absorbance) based signals for chemical analysis inside PCF has shown good results, the combinations of PCF with Raman spectroscopy (PCF-Raman) has such attractive advantages as registration of vibrational spectra of target compounds and enabling multicomponent analysis.