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13th International Conference on Optics, Photonics & Laser

EURO-OPTICS 2020

 13th International Conference on Optics, Photonics & Lasers  
April 22-23, 2020 Berlin, Germany.

Please see: https://optics.physicsmeeting.com/
Sessions/Tracks
Track 1: Classical & Physical Optics
Classical optics is divided into two main branches: geometrical (or ray) optics and physical (or wave) optics. In geometrical optics, light is considered to travel in straight lines, while in physical optics, light is considered as an electromagnetic wave. Physical optics  is the study of the wave properties of light, which may be roughly grouped into three categories: interference, diffraction, and polarization And In Physical optics, light is considered to propagate as a wave. This model predicts phenomena such as interference and diffraction which are not explained by geometric optics. The speed of light waves in air is approximately 3.0×108 m/s (exactly 299,792,458 m/s in vacuum).
Track 2: Nano & Quantum Optics
Nano-optics is the study of optical phenomena and techniques on the manometer scale, that is, near or beyond the diffraction limit of light. It is an emerging field of study, motivated by the rapid advance of Nano science and nanotechnology which require adequate tools and strategies for fabrication, manipulation and characterization at this scale.In Principles of Nano-Optics the authors provide a comprehensive overview of the theoretical and experimental concepts necessary to understand and work in nano-optics. With a very broad perspective, they cover optical phenomena relevant to the nanoscale across diverse areas ranging from quantum optics to biophysics, introducing and extensively describing all of the significant methods.
Track 3: Optical Imaging and Sensing
Optical Imaging is the method in which light is being used to get the investigational imaging of the medical operations. Basically, optical imaging is of two types which are diffusive Imaging systems and ballistic imaging system. Some of the main examples are scanning laser ophthalmoscopy, optical coherence tomography, optical microscopy and endoscopy, spectroscopy.
Track 4: Photonics and its Devices
Photonics is an area of study that involves the use of radiant energy (such as light), whose fundamental element is the photon. Photonic applications use the photon in the same way that electronic applications use the electron. Devices that run on light have a number of advantages over those that use electricity.Applications of photonics: Applications of photonics are ubiquitous. Included are all areas from everyday life to the most advanced science, e.g. light detection, telecommunications, information processing, photonic computing, lighting, metrology, spectroscopy, holography, medicine (surgery, vision correction, endoscopy, health monitoring), bio photonics, military technology, laser material processing, art diagnostics (involving InfraRed , Reflectography, Xrays, UltraViolet fluorescence, XRF), agriculture, and robotics.
Track 5: Optics in Astronomy and Astrophysics
These are the optics which belong to the branch of optics and photonics which uses light controlling components to get the images of the celestial objects in the space. The perfect example for this would be a telescope.
Trach 6: Geometrical Optics
Geometrical optics, or ray optics, is a model of optics that describes light propagation in terms of rays. The ray in geometric optics is an abstraction useful for approximating the paths along which light propagates under certain circumstances. Three basic laws: The law of rectilinear propagation (transmission). ... When a ray of light is reflected at an interface dividing two optical media, the reflected ray remains within the plane of incidence, and the angle of reflection θ r equals the angle of incidence θ i.
Track 7: Principle of Interferometers
Basic Principle of Interferometer. Interferometer is a precise instrument for flow visualization. The variation of refractive index of the flowing gas with density is the basic principle used in thses system. The principle of interference of light waves is used.
  • Operation of Interferometer: Light rays from a source are collimated with a lens L1. That is, the light rays become a parallel beam of rays when they come out of the lens L1.
  • This collimated light rays are then split by a beam splitter B1. The two beams traverse at right angles to each other.
  • That is the beam   
Track 8: Lasers in Medicine 
Laser medicine consists in the use of lasers in medical diagnosis, treatments, or therapies, such as laser photodynamic therapy, photo rejuvenation, and laser surgery. While the history of laser begins in 1951, the first medical application is reported by Goldman in 1962. In cardiovascular surgery McGuff first used a Ruby-Laser in 1963 for the experimental ablation of atherosclerotic plaques. After a long time of investigations and new developments in laser technology first clinical applications were performed by Choy and Ginsburg in 1983. Since that time the effectiveness of laser angioplasty in coronary and peripheral vessel is investigated in several clinical trials and first results are encouraging, so that laser is about to find its place in the treatment of cardiovascular diseases too.
Track 9: Optical Technologies
Light, like radio, consists of electromagnetic waves. The major difference between the two is that light waves are much shorter than radio waves. The use of electromagnetic waves for long-distance communications was the beginning of an industry known first as wireless and later as radio. This industry was the foundation for electronics, which brought the world so many fascinating technologies.
Track 10: Laser and Its Types
There are four types which are: solid state, gas, dye, and semiconductor. The characteristics of each type will be described. Solid State Lasers employ a lasing material distributed in a solid matrix. One example is the Neodymium: YAG laser (Nd:YAG).
  • Solid-state laser:   A solid-state laser is a laser that uses solid as a laser medium. In these lasers, glass or crystalline materials are used
  • Gas laser: A gas laser is a laser in which an electric current is discharged through a gas inside the laser medium to produce laser light. In gas lasers, the laser medium is in the gaseous state
  • Liquid laser: A liquid laser is a laser that uses the liquid as laser medium. In liquid lasers, light supplies energy to the laser medium.
  • Semiconductor laser: Semiconductor lasers play an important role in our everyday life. These lasers are very cheap, compact size and consume low power. Semiconductor lasers are also known as laser diodes.

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