Plane-wave scattering by a set of perfectly conducting circular
... is a real conducting plane, solutions are available also for noncylindrical objects.31–34 In addition, partially buried scatterers have recently been considered.35,36 Among the several applications of gratings in free space we quote Refs. 37–39, where the grids are used as couplers and mirrors. A wi ...
... is a real conducting plane, solutions are available also for noncylindrical objects.31–34 In addition, partially buried scatterers have recently been considered.35,36 Among the several applications of gratings in free space we quote Refs. 37–39, where the grids are used as couplers and mirrors. A wi ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... increasing Population. Thus the great demand has kindled the researchers to find new innovative ideas for effective dispersion less transmission through a long distance. The Wavelength Division Multiplexing method has enormously spread its wing to serve the great need for bandwidth but still constri ...
... increasing Population. Thus the great demand has kindled the researchers to find new innovative ideas for effective dispersion less transmission through a long distance. The Wavelength Division Multiplexing method has enormously spread its wing to serve the great need for bandwidth but still constri ...
Chapter 4 Optical Resonator
... 2. Semiconductor lasers are often fabricated from crystals whose surfaces are cleaved along crystal planes. These surfaces act as reflectors and therefore serve as the resonator mirrors. Consider a crystal with refractive index n = 3.6 placed in air (n = 1). The light reflects between two parallel s ...
... 2. Semiconductor lasers are often fabricated from crystals whose surfaces are cleaved along crystal planes. These surfaces act as reflectors and therefore serve as the resonator mirrors. Consider a crystal with refractive index n = 3.6 placed in air (n = 1). The light reflects between two parallel s ...
Structure and symmetry in coherent perfect polarization rotation
... absorber (CPA, also called the antilaser) [2,3], which has been well studied [4–7]. While many optical devices such as laser wavelength locks, field sensors, optical isolators, and modulators are based on the nonreciprocal nature of Faraday rotation, one way to improve all of these devices is to pro ...
... absorber (CPA, also called the antilaser) [2,3], which has been well studied [4–7]. While many optical devices such as laser wavelength locks, field sensors, optical isolators, and modulators are based on the nonreciprocal nature of Faraday rotation, one way to improve all of these devices is to pro ...
Assessment of optical systems by means of point
... It was mentioned above that the assessment of the quality of a highly specified optical system has to be done in the wavefront domain down to a fraction of the wavelength of the light. Interferometric methods are mostly used for this purpose. Although the achievable precision is very high, these met ...
... It was mentioned above that the assessment of the quality of a highly specified optical system has to be done in the wavefront domain down to a fraction of the wavelength of the light. Interferometric methods are mostly used for this purpose. Although the achievable precision is very high, these met ...
full text pdf
... splitting capability gradually increases with the decrease of wavelength. The bandwidth is up to the 400 nm. In the nine−core fibre, d2 is the crucial parameter and it affects the coupling characteristics. Next, we analyse the effect of the d2 on the properties of the wavelength selective couplers. ...
... splitting capability gradually increases with the decrease of wavelength. The bandwidth is up to the 400 nm. In the nine−core fibre, d2 is the crucial parameter and it affects the coupling characteristics. Next, we analyse the effect of the d2 on the properties of the wavelength selective couplers. ...
Ultrafast Carrier and Lattice Dynamics in Highly
... skills paired with a sixth sense for picking the “right” graduate students enable him to create an extremely collegial and friendly environment in his research group. Throughout the years in Eric’s group I was always happy to go to “lab” in the morning — even if it was not for the work sometimes, it ...
... skills paired with a sixth sense for picking the “right” graduate students enable him to create an extremely collegial and friendly environment in his research group. Throughout the years in Eric’s group I was always happy to go to “lab” in the morning — even if it was not for the work sometimes, it ...
Deposition, Characterization, and Fabrication of a Zinc Oxide
... Figure 21 – When incident x-rays penetrate the surface of a sample the electrons in the atoms scatter the x-ray waves and send out new waves that can constructively interfere with one another in certain directions according to Bragg’s law. .......................................................... 3 ...
... Figure 21 – When incident x-rays penetrate the surface of a sample the electrons in the atoms scatter the x-ray waves and send out new waves that can constructively interfere with one another in certain directions according to Bragg’s law. .......................................................... 3 ...
Illusion Optics: The Optical Transformation of an Object into Another
... interesting possibilities. For instance, an illusion waveguide or photonic crystal would allow the control of light propagation in actual free space; an illusion tip might perform near-field scanning optical microscopy without physically approaching a surface. However, the theoretical foundation of ...
... interesting possibilities. For instance, an illusion waveguide or photonic crystal would allow the control of light propagation in actual free space; an illusion tip might perform near-field scanning optical microscopy without physically approaching a surface. However, the theoretical foundation of ...
Measuring the spatiotemporal electric field of
... as FROG or its experimentally simpler version, GRENOUILLE. Unfortunately, traditional SI has a few practical limitations that have prevented it from working well for this application. The standard reconstruction algorithm for SI, often referred to as Fourier transform spectral interferometry (FTSI), ...
... as FROG or its experimentally simpler version, GRENOUILLE. Unfortunately, traditional SI has a few practical limitations that have prevented it from working well for this application. The standard reconstruction algorithm for SI, often referred to as Fourier transform spectral interferometry (FTSI), ...
Nonlinear Beam Shaping with Plasmonic Metasurfaces
... nonlinear coefficient locally, at the single inclusion level, the emitted secondharmonic wavefront is perfectly controlled. These concepts are demonstrated experimentally by the far-field generation of second-harmonic Airy and vortex beams from nonlinear binary phase computer-generated holograms and th ...
... nonlinear coefficient locally, at the single inclusion level, the emitted secondharmonic wavefront is perfectly controlled. These concepts are demonstrated experimentally by the far-field generation of second-harmonic Airy and vortex beams from nonlinear binary phase computer-generated holograms and th ...
Dispersion Compensation Using Tunable Chirped Apodized Far Off Resonance Fiber
... in reflection. To operate the grating in reflection requires in order realizing wavelength division multiplexing (WDM), various wavelength sensitive devices are required to perform the multiplexing and demultiplexing of signals at different wavelengths, so that the whole system can be practical. A c ...
... in reflection. To operate the grating in reflection requires in order realizing wavelength division multiplexing (WDM), various wavelength sensitive devices are required to perform the multiplexing and demultiplexing of signals at different wavelengths, so that the whole system can be practical. A c ...
Tunable nonlinear fiber optics using dense noble gases
... Raman-scattering interactions. A HC-PCF with a kagomé-style cladding lattice was found to support a much broader transmission window (from UV-IR). Such a broad transmission range lead kagomé HC-PCF to be used in novel nonlinear experiments such as dispersive wave UV generation [17], in-fiber ionizat ...
... Raman-scattering interactions. A HC-PCF with a kagomé-style cladding lattice was found to support a much broader transmission window (from UV-IR). Such a broad transmission range lead kagomé HC-PCF to be used in novel nonlinear experiments such as dispersive wave UV generation [17], in-fiber ionizat ...
Investigation of bending loss in a single
... have been observed by many workers, and Harris and Castle [14] have explained this behaviour by coupling the fundamental mode and the so-called whispering gallery modes using ray optics. This bending loss in coated optical fibres has been investigated by means of numerical methods based on wave opti ...
... have been observed by many workers, and Harris and Castle [14] have explained this behaviour by coupling the fundamental mode and the so-called whispering gallery modes using ray optics. This bending loss in coated optical fibres has been investigated by means of numerical methods based on wave opti ...