Observation of optical polarization Möbius strips
... initial beam’s transverse polarization distribution. Shown in Fig. 2A are the theoretically calculated electric energy density and phase distributions of individual components of the electric field Ex, Ey, and Ez of the tightly focused Poincaré beam and the total electric energy density distribution ...
... initial beam’s transverse polarization distribution. Shown in Fig. 2A are the theoretically calculated electric energy density and phase distributions of individual components of the electric field Ex, Ey, and Ez of the tightly focused Poincaré beam and the total electric energy density distribution ...
peer-review article - NC State University
... of these effects is crucial for the altered appearance of wood. Therefore, a second method was used to change the roughness of the wood in the nanometer range without applying any substance. Due to UV-irradiation, the nanoroughness of the wood was altered. With a longer exposure to UV radiation, the ...
... of these effects is crucial for the altered appearance of wood. Therefore, a second method was used to change the roughness of the wood in the nanometer range without applying any substance. Due to UV-irradiation, the nanoroughness of the wood was altered. With a longer exposure to UV radiation, the ...
Angle-independent structural colors of silicon
... Structural colors are optical phenomena of physical origin, where microscale and nanoscale structures determine the reflected spectrum of light, although an unambiguous definition has not been settled yet.1 The mechanisms of structural colors are categorized into thin-film interference, multilayer i ...
... Structural colors are optical phenomena of physical origin, where microscale and nanoscale structures determine the reflected spectrum of light, although an unambiguous definition has not been settled yet.1 The mechanisms of structural colors are categorized into thin-film interference, multilayer i ...
1 Introduction to Optics and Photophysics - Wiley-VCH
... (such as at the air and glass) have constituents (molecules) that are much smaller than the wavelength of light (homogeneous media), but these homogeneous areas are much larger in feature size (i.e., the size of a lens) than in the wavelength. To describe diffraction, it is useful to first consider t ...
... (such as at the air and glass) have constituents (molecules) that are much smaller than the wavelength of light (homogeneous media), but these homogeneous areas are much larger in feature size (i.e., the size of a lens) than in the wavelength. To describe diffraction, it is useful to first consider t ...
An Introduction to Optical Window Design
... 1. Optical windows at the outset seem like a simple design task but when they are used in applications with any amount of special requirements, careful attention to details of the design is in order. 2. Sealing optical windows can be accomplished with flexible silicone based adhesives such as RTV an ...
... 1. Optical windows at the outset seem like a simple design task but when they are used in applications with any amount of special requirements, careful attention to details of the design is in order. 2. Sealing optical windows can be accomplished with flexible silicone based adhesives such as RTV an ...
Light Measurement Handbook
... Night vision equipment takes advantage of this effect, amplifying infrared to distinguish people and machinery that are concealed in the darkness. Infrared is unique in that it exhibits primarily wave properties. This can make it much more difficult to manipulate than ultraviolet and visible light. ...
... Night vision equipment takes advantage of this effect, amplifying infrared to distinguish people and machinery that are concealed in the darkness. Infrared is unique in that it exhibits primarily wave properties. This can make it much more difficult to manipulate than ultraviolet and visible light. ...
Virtual Objects on Real Oceans
... frequencies that match capillary waves. Several low-pass filters can be used (median, Gaussian): our experiments showed that the result in any case is far from optimal, since the image becomes too blurry before capillary waves are removed. An edge preserving filtering strategy such as bilateral filt ...
... frequencies that match capillary waves. Several low-pass filters can be used (median, Gaussian): our experiments showed that the result in any case is far from optimal, since the image becomes too blurry before capillary waves are removed. An edge preserving filtering strategy such as bilateral filt ...
Using ray matrices to derive analytical expressions of optical
... Ray matrix formalism is a useful theory applied to paraxial geometrical optics, which employs 2×2 matrices to describe optical systems [1,2]. This formulation allows complex, multi-element, optical systems to be analyzed and simplified using easy calculations. This matrix theory is also very useful ...
... Ray matrix formalism is a useful theory applied to paraxial geometrical optics, which employs 2×2 matrices to describe optical systems [1,2]. This formulation allows complex, multi-element, optical systems to be analyzed and simplified using easy calculations. This matrix theory is also very useful ...
Optical Reconstruction of Holographic Images
... away from the hologram. Equivalently, we can simulate the propagation of a wave field equal to H digitally. Of course, R is never exactly a uniform plane wave, so distortion and noise are thereby introduced. The other terms in (1) that are not proportional to the object wave also introduce noise int ...
... away from the hologram. Equivalently, we can simulate the propagation of a wave field equal to H digitally. Of course, R is never exactly a uniform plane wave, so distortion and noise are thereby introduced. The other terms in (1) that are not proportional to the object wave also introduce noise int ...
Direct Characterization of Plasmonic Slot Waveguides and
... scattered light via pseudo-heterodyne detection23 . Background contributions were suppressed by demodulating the detector signal at a high-order harmonic frequency nΩ (in our case n = 2), providing background-free nearfield amplitude and phase images. It should be pointed out that, in most s-SNOM ex ...
... scattered light via pseudo-heterodyne detection23 . Background contributions were suppressed by demodulating the detector signal at a high-order harmonic frequency nΩ (in our case n = 2), providing background-free nearfield amplitude and phase images. It should be pointed out that, in most s-SNOM ex ...
Optical polarization tutorial
... Exercise A.1 Suppose we measure the electric field at a particular point in space. Show that a) when the polarization is√linear, the tip of the electric field vector oscillates along a straight line with the amplitude A2H + A2V ; b) when the polarization is circular, the tip of the electric field vecto ...
... Exercise A.1 Suppose we measure the electric field at a particular point in space. Show that a) when the polarization is√linear, the tip of the electric field vector oscillates along a straight line with the amplitude A2H + A2V ; b) when the polarization is circular, the tip of the electric field vecto ...
Mie theory for light scattering by a spherical
... 4. Scattering Phase Function and Asymmetry Factor ...
... 4. Scattering Phase Function and Asymmetry Factor ...
An Optical Fiber Lateral Displacement Measurement Method and
... they are not widely used because of the temperature sensitivity. Both linear variable displacement transformers [8] and linear encoders can supply nanoscale resolution with a large measurement range [9,10], however, they are unreliable in electromagnetic interference environments. Fiber optic sensor ...
... they are not widely used because of the temperature sensitivity. Both linear variable displacement transformers [8] and linear encoders can supply nanoscale resolution with a large measurement range [9,10], however, they are unreliable in electromagnetic interference environments. Fiber optic sensor ...
Observing Angular Deviations in the Specular Reflection of a Light
... this radiation yields insights into the pulse propagation dynamics.3 In early studies of femtosecond laser filamentation, axially symmetric beam profiles were used, such as Gaussian, flat-top and Bessel beams. Accordingly, filaments were generated along straight lines. The broadband forward emission ...
... this radiation yields insights into the pulse propagation dynamics.3 In early studies of femtosecond laser filamentation, axially symmetric beam profiles were used, such as Gaussian, flat-top and Bessel beams. Accordingly, filaments were generated along straight lines. The broadband forward emission ...
Self-collimation and focusing effects in zero
... Recent experimental results reporting the propagation of sub-wavelength self-collimated beams over several millimeters have shown a new type of beam shaping principle [7]. Self-collimation originally discovered in positive index 2D photonic crystal is understood thanks to the analysis of photonic su ...
... Recent experimental results reporting the propagation of sub-wavelength self-collimated beams over several millimeters have shown a new type of beam shaping principle [7]. Self-collimation originally discovered in positive index 2D photonic crystal is understood thanks to the analysis of photonic su ...
Second Harmonic Generation Technique and its Applications
... As we already mentioned, the principal requirement for the material is the lack of the center of inversion, except in some isolated cases where the SHG was also observed in centrosymmetric materials, such as phthalocyanines [19] and fullerene C60 thin films [20–25] as due to the quadrupolar, magneti ...
... As we already mentioned, the principal requirement for the material is the lack of the center of inversion, except in some isolated cases where the SHG was also observed in centrosymmetric materials, such as phthalocyanines [19] and fullerene C60 thin films [20–25] as due to the quadrupolar, magneti ...
Construction Of Multiple-beam Optical Traps
... Dielectric particles in a laser beam are subject to at least two distinct types of optical force: a scattering force, acting in the direction of propagation of the light on the particle, and a gradient force, due to the interaction of dipoles with the electric field gradient that exists in the laser ...
... Dielectric particles in a laser beam are subject to at least two distinct types of optical force: a scattering force, acting in the direction of propagation of the light on the particle, and a gradient force, due to the interaction of dipoles with the electric field gradient that exists in the laser ...