Selective Trapping or Rotation of Isotropic Dielectric Microparticles
... manipulation can be easily achieved by changing the handedness of the circularly polarized excitation. In the current work, qualitative demonstrations of this novel working principle are presented. Interesting future outlooks include quantitative and statistical investigations over the ability to ma ...
... manipulation can be easily achieved by changing the handedness of the circularly polarized excitation. In the current work, qualitative demonstrations of this novel working principle are presented. Interesting future outlooks include quantitative and statistical investigations over the ability to ma ...
WAVE OPTICS Jaan Kalda 1 Basics. Double slit diffraction.
... there is no need to add Re to separate its real part which which the diffraction pattern fluctuates. This is well beyond corresponds to a real physical quantity. anything what an human eye can resolve: we’ll see an averaged So, at our infinitely-remote-screen, we have two waves picture without any i ...
... there is no need to add Re to separate its real part which which the diffraction pattern fluctuates. This is well beyond corresponds to a real physical quantity. anything what an human eye can resolve: we’ll see an averaged So, at our infinitely-remote-screen, we have two waves picture without any i ...
Waves and Optics - School of Physics
... 1. Imagine you have a spring and you cut it into two pieces, one a third the length of the original spring and one two thirds the length of the original. a. The more coils a spring has the easier it is to stretch it. The shorter spring, with only half as many coils, will not stretch as much as the l ...
... 1. Imagine you have a spring and you cut it into two pieces, one a third the length of the original spring and one two thirds the length of the original. a. The more coils a spring has the easier it is to stretch it. The shorter spring, with only half as many coils, will not stretch as much as the l ...
Optical response of plasmonic relief meta-surfaces
... The optical properties of surface relief metamaterials are dictated by geometric parameters including the in-plane size, out of plane height/depth, anisotropy, cross-sectional shape and periodic arrangement of features. As illustrated above, the (an)isotropy of unit cells determines the polarization ...
... The optical properties of surface relief metamaterials are dictated by geometric parameters including the in-plane size, out of plane height/depth, anisotropy, cross-sectional shape and periodic arrangement of features. As illustrated above, the (an)isotropy of unit cells determines the polarization ...
Electromagnetic Wave Ray Optics Wave Optics
... - An antenna is a vital component of any communication system. It is employed both at the transmitting end as well as at the receiving end. - An antenna is a length of conductor, its length is such that it acts as a resonant circuit at the frequency of operation. l = /2. - It acts as a conversion d ...
... - An antenna is a vital component of any communication system. It is employed both at the transmitting end as well as at the receiving end. - An antenna is a length of conductor, its length is such that it acts as a resonant circuit at the frequency of operation. l = /2. - It acts as a conversion d ...
- Natural Sciences Publishing
... Abstract: GexSb40-xSe60 (where 10≤ x≤ 30 at %) thin films were prepared on glass substrates by thermal evaporation technique. X-ray diffraction analysis for as – deposited films showed that they have amorphous structure. The optical constants of the as- deposited films were calculated from optical t ...
... Abstract: GexSb40-xSe60 (where 10≤ x≤ 30 at %) thin films were prepared on glass substrates by thermal evaporation technique. X-ray diffraction analysis for as – deposited films showed that they have amorphous structure. The optical constants of the as- deposited films were calculated from optical t ...
Low-coherence heterodyne photon correlation spectroscopy
... was accomplished by filling the sample cell with the colloidal suspension to be studied. ...
... was accomplished by filling the sample cell with the colloidal suspension to be studied. ...
Shaping the focal intensity distribution using spatial coherence
... requires high intensity at focus, while the trapping of lowindex particles requires low intensity at focus. The J0 focusing configuration allows one to construct a system that can continuously switch between these two trapping conditions [14]. It is also observed that J1共x兲 / x correlated fields res ...
... requires high intensity at focus, while the trapping of lowindex particles requires low intensity at focus. The J0 focusing configuration allows one to construct a system that can continuously switch between these two trapping conditions [14]. It is also observed that J1共x兲 / x correlated fields res ...
Self-collimation and focusing effects in zero
... addition been theoretically predicted when a resonant optical condition similar to Fabry-Perot (FP) condition is satisfied [3]. Although these resonant states have not yet been experimentally observed, they present unusual properties. Indeed, conversely to defect modes obtained in positive PCs devic ...
... addition been theoretically predicted when a resonant optical condition similar to Fabry-Perot (FP) condition is satisfied [3]. Although these resonant states have not yet been experimentally observed, they present unusual properties. Indeed, conversely to defect modes obtained in positive PCs devic ...
Enhancement of absorption and color contrast in
... of transparent materials are a cornerstone of modern optical technology.1 These coatings utilize the principle of thin film interference to enable effects such as anti-reflection (AR) and high-reflection (HR), the former being especially important for imaging equipment such as microscope objectives, ...
... of transparent materials are a cornerstone of modern optical technology.1 These coatings utilize the principle of thin film interference to enable effects such as anti-reflection (AR) and high-reflection (HR), the former being especially important for imaging equipment such as microscope objectives, ...
Excited States, Lasers and Non-Linear Optics
... National Ignition Facility and Photon Science Lawrence Livermore National Laboratory ...
... National Ignition Facility and Photon Science Lawrence Livermore National Laboratory ...
L2 REFLECTION AND REFRACTION
... The main interest in this chapter is in what happens to light when it comes to the boundary between two different materials. Briefly, several things can happen there: some of the light may be reflected back into the material where it came from while some of it may continue to travel through the seco ...
... The main interest in this chapter is in what happens to light when it comes to the boundary between two different materials. Briefly, several things can happen there: some of the light may be reflected back into the material where it came from while some of it may continue to travel through the seco ...
A NEW, LOW-COST, ON-LINE RGB COLORIMETER FOR WINE INDUSTRY
... If the reflective surface has a good reflectance, total effects is equivalent to transmit the light along two times the distance between the end of fibre and reflective surface. It is made of a stainless steel, type INOX 304 or 316 with appropriate surface is a robust solution for wine industry. A c ...
... If the reflective surface has a good reflectance, total effects is equivalent to transmit the light along two times the distance between the end of fibre and reflective surface. It is made of a stainless steel, type INOX 304 or 316 with appropriate surface is a robust solution for wine industry. A c ...
Rotating light with light: Generation of helical modes of light by spin
... helical-shaped thickness (“spiral phase plates”),27 or by a system of cylindrical lenses acting on beams having an initial Hermite-Gaussian transverse mode,1 or finally by suitable holograms (either printed in fixed holographic elements or generated in computer-controlled spatial light modulators).7 ...
... helical-shaped thickness (“spiral phase plates”),27 or by a system of cylindrical lenses acting on beams having an initial Hermite-Gaussian transverse mode,1 or finally by suitable holograms (either printed in fixed holographic elements or generated in computer-controlled spatial light modulators).7 ...
Comparison of Scalar and Vector Modeling of Image Formation in
... assumption of separability, that an aerial image and a standing wave intensity can be calculated independently and then multiplied together to give the total intensity. This assumption is not required. Instead, one could calculate the full I(x,z) at once making only the standard scalar approximation ...
... assumption of separability, that an aerial image and a standing wave intensity can be calculated independently and then multiplied together to give the total intensity. This assumption is not required. Instead, one could calculate the full I(x,z) at once making only the standard scalar approximation ...
Advanced Applications
... The second beam, the probe beam, will go through the gas cell and be detected by one port of a balanced detector. The frequency of this beam is identical to that of the pump beam but propagates in the opposite direction; thus the Doppler shift observed from this beam is of opposite sign. Hence, only ...
... The second beam, the probe beam, will go through the gas cell and be detected by one port of a balanced detector. The frequency of this beam is identical to that of the pump beam but propagates in the opposite direction; thus the Doppler shift observed from this beam is of opposite sign. Hence, only ...