What is Light?
... component colors through a prism. The different frequencies of different colors travel at different speeds when they enter a new medium, leading to different directions for each wave of different color. This is also called chromatic aberration and can be seen in lenses of inferior quality. Prisms us ...
... component colors through a prism. The different frequencies of different colors travel at different speeds when they enter a new medium, leading to different directions for each wave of different color. This is also called chromatic aberration and can be seen in lenses of inferior quality. Prisms us ...
Coatings, Filters, and Surface Finishes
... don’t want to make mirrors from solid metal, we need to know how thick to make the coating. The transmitted light typically has an initial amplitude |E | ≈ 0.2|E|, so we can’t just ignore it—we have to make the coating thick enough to be opaque. Because of the hugeness of Im{n}, the wave equation ...
... don’t want to make mirrors from solid metal, we need to know how thick to make the coating. The transmitted light typically has an initial amplitude |E | ≈ 0.2|E|, so we can’t just ignore it—we have to make the coating thick enough to be opaque. Because of the hugeness of Im{n}, the wave equation ...
Active Control of Rogue Waves for Stimulated Supercontinuum
... Conventional (unseeded) SC generation with pulses of picosecond duration is a spontaneous, largely uncontrolled process occurring above a certain power threshold [2], and subthreshold pump pulses generate only rare, random flashes of SC radiation [3]. In contrast, seeding the process causes the once ...
... Conventional (unseeded) SC generation with pulses of picosecond duration is a spontaneous, largely uncontrolled process occurring above a certain power threshold [2], and subthreshold pump pulses generate only rare, random flashes of SC radiation [3]. In contrast, seeding the process causes the once ...
THE FRESNEL DIFFRACTION : A STORY OF LIGHT AND DARKNESS
... circular screen should give rise in the center of its shadow of a bright spot of the same intensity as if the screen does not exist. The experiment was soon realized by Arago, another jury’s member, who indeed brilliantly confirmed Fresnel’s theory. This bright spot is now called after Poisson, Arag ...
... circular screen should give rise in the center of its shadow of a bright spot of the same intensity as if the screen does not exist. The experiment was soon realized by Arago, another jury’s member, who indeed brilliantly confirmed Fresnel’s theory. This bright spot is now called after Poisson, Arag ...
June 4 - The 7th International Conference on Surface Plasmon
... spatial resolution below the diffraction limit. This leads to smearing of the spatial photocurrent maps, which can mask important details. Here we introduce a photocurrent measurement technique which is not limited by the diffraction limit. Using a scattering-type scanning near-field optical microsc ...
... spatial resolution below the diffraction limit. This leads to smearing of the spatial photocurrent maps, which can mask important details. Here we introduce a photocurrent measurement technique which is not limited by the diffraction limit. Using a scattering-type scanning near-field optical microsc ...
Daedalon EO-85 Computerized Spectrophotometer
... directed through a 700 line/mm holographic grating. The diffracted light passes through an f/1.8 50mm focal length camera lens, which focuses an image of the diffracted light from the slit on a Charge Coupled Device (CCD) detector. The next page illustrates the design of the optical system for the S ...
... directed through a 700 line/mm holographic grating. The diffracted light passes through an f/1.8 50mm focal length camera lens, which focuses an image of the diffracted light from the slit on a Charge Coupled Device (CCD) detector. The next page illustrates the design of the optical system for the S ...
Phase space of partially coherent light with discontinuous surfaces
... Background The Wigner function was first proposed by Wigner [1] in 1932 as a quasi-probability distribution to describe quantum mechanics in phase space. Later the Wigner function was introduced into optics by Dolin and Walther [2–4], to describe an optical signal in phase space. There are several r ...
... Background The Wigner function was first proposed by Wigner [1] in 1932 as a quasi-probability distribution to describe quantum mechanics in phase space. Later the Wigner function was introduced into optics by Dolin and Walther [2–4], to describe an optical signal in phase space. There are several r ...
YourFirstTelescope
... which is a tripod that allows the user to adjust both the horizontal (altitude) axis and the vertical (azimuth) axis with hand dials, electronic controls or just pushing the telescope barrel. More sophisticated telescopes may also come with Equatorial Mount tripods, which allow the observer to set t ...
... which is a tripod that allows the user to adjust both the horizontal (altitude) axis and the vertical (azimuth) axis with hand dials, electronic controls or just pushing the telescope barrel. More sophisticated telescopes may also come with Equatorial Mount tripods, which allow the observer to set t ...
Calculations Table 1: Single Slit
... is dominant, and we must treat light as a wave. A curious double behavior with one major clause -light can exhibit only one behavior (particle or wave) in any given experiment. In this lab we will utilize the wave nature of photons by diffracting red laser light through a single narrow opening cut i ...
... is dominant, and we must treat light as a wave. A curious double behavior with one major clause -light can exhibit only one behavior (particle or wave) in any given experiment. In this lab we will utilize the wave nature of photons by diffracting red laser light through a single narrow opening cut i ...
Sample pages 1 PDF
... 10−6 = 1.25 × 10−28 N s per photon, not of any great significance until one considers the avalanche of photons possible with the laser. The energy of a photon from a CO2 laser is given as 1.85×10−20 J in Table 2.1, where it is compared with the energy of photons from other optical generators. Thus, i ...
... 10−6 = 1.25 × 10−28 N s per photon, not of any great significance until one considers the avalanche of photons possible with the laser. The energy of a photon from a CO2 laser is given as 1.85×10−20 J in Table 2.1, where it is compared with the energy of photons from other optical generators. Thus, i ...
Transfer of Light Helicity to Nanostructures
... indicates that optical vortices with J ¼ 0 (L ¼ 1, S¼1) can create nanoneedles whose chirality is determined by the sign of L [Figs. 2(d) and 2(e)]. These experimental results suggest the following mechanism. The melted metal upon irradiation of the optical vortex pulse is collected in the ring of ...
... indicates that optical vortices with J ¼ 0 (L ¼ 1, S¼1) can create nanoneedles whose chirality is determined by the sign of L [Figs. 2(d) and 2(e)]. These experimental results suggest the following mechanism. The melted metal upon irradiation of the optical vortex pulse is collected in the ring of ...
Temporal coherence characteristics of a superluminescent
... widely used for the optical measurement [1], and especially the SLD broadband source has been playing an important role in the optical coherence tomography system [2,3]. High output power and large optical bandwidth are key features for the SLD, and the extremely high optical gain in SLD active regi ...
... widely used for the optical measurement [1], and especially the SLD broadband source has been playing an important role in the optical coherence tomography system [2,3]. High output power and large optical bandwidth are key features for the SLD, and the extremely high optical gain in SLD active regi ...
Waves All Around Us!
... Phase difference is expressed in degrees from 0 to 360. If the difference is 180 degrees then the two signals are said to be in antiphase: they are equal but opposite, and if added together will sum to zero. If the phase difference is 90 degrees then the signals are said to be in quadrature. ...
... Phase difference is expressed in degrees from 0 to 360. If the difference is 180 degrees then the two signals are said to be in antiphase: they are equal but opposite, and if added together will sum to zero. If the phase difference is 90 degrees then the signals are said to be in quadrature. ...
Total internal reflection holography for optical interconnections
... pinhole will quadruple the object wave intensity and will divide by four the illumination area in the holographic plane (far-field propagation assumed). This results in an increase of 16 times the object wave irradiance and ofthe ratio between the object and reference beams. ...
... pinhole will quadruple the object wave intensity and will divide by four the illumination area in the holographic plane (far-field propagation assumed). This results in an increase of 16 times the object wave irradiance and ofthe ratio between the object and reference beams. ...
Study of the Optical Parameters of the 40m LIGO Prototype
... circulates through each of these it is necessary to have a device that transforms the beam so that it will resonate in each cavity. This is achieved using mode-matching telescopes. At the 40m, these consist of two lenses whose curvature and separation control the radius of curvature and spot size of ...
... circulates through each of these it is necessary to have a device that transforms the beam so that it will resonate in each cavity. This is achieved using mode-matching telescopes. At the 40m, these consist of two lenses whose curvature and separation control the radius of curvature and spot size of ...
PDF
... to generate OAM beams, the alternative integrated solutions are of great interest for device miniaturization, enhanced stability, and the possibility to integrate with other on-chip photonic components and functionalities. To this end, large-scale silicon photonic integrated circuits (PICs), which h ...
... to generate OAM beams, the alternative integrated solutions are of great interest for device miniaturization, enhanced stability, and the possibility to integrate with other on-chip photonic components and functionalities. To this end, large-scale silicon photonic integrated circuits (PICs), which h ...
Direct measurement of terahertz wavefront pulses using 2D electro
... NeTHIS – New Terahertz Iimaging Systems, Mérignac, France ...
... NeTHIS – New Terahertz Iimaging Systems, Mérignac, France ...
Optical Interferometers
... surfaces, creating a large number of reflections. Interference of these multiple beams produces sharp spikes in the transmission for certain light frequencies. Thanks to the large number of interfering rays, this type of interferometer has extremely high resolution, much better than, for example, a ...
... surfaces, creating a large number of reflections. Interference of these multiple beams produces sharp spikes in the transmission for certain light frequencies. Thanks to the large number of interfering rays, this type of interferometer has extremely high resolution, much better than, for example, a ...