Sidelobe decline in single-photon 4Pi microscopy by Toraldo rings
... the above filter in the illumination path of a single-photon 4Pi(c)-confocal microscope. The parameters for the calculation were the same as the ones used in Fig. 2. In Fig. 5 we have plotted the illumination and the detection PSFs, together with the PSF of the 4Pi system. Note that the use of the T ...
... the above filter in the illumination path of a single-photon 4Pi(c)-confocal microscope. The parameters for the calculation were the same as the ones used in Fig. 2. In Fig. 5 we have plotted the illumination and the detection PSFs, together with the PSF of the 4Pi system. Note that the use of the T ...
Surface Plasmon Engineering in Graphene Functionalized with
... dielectric interface with the same wave vectors are also shown in Figure 2b as a comparison and will be analyzed in detail later. The effective refractive index for the SPs can be extracted from the dispersion relation as neff = cky/ω, which indicates the relative scale of the plasmonic wavelength an ...
... dielectric interface with the same wave vectors are also shown in Figure 2b as a comparison and will be analyzed in detail later. The effective refractive index for the SPs can be extracted from the dispersion relation as neff = cky/ω, which indicates the relative scale of the plasmonic wavelength an ...
RAY OPTICS NOTES - RIT Center for Imaging Science
... We hope to find a mathematical model of optical imaging as a “system,” where an output distribution g is created from an input object distribution f by the action of an imaging system O, e.g., g [x, y, λ] = O {f [x, y, z, λ]}. We generally use this model to (try to) solve the inverse imaging problem ...
... We hope to find a mathematical model of optical imaging as a “system,” where an output distribution g is created from an input object distribution f by the action of an imaging system O, e.g., g [x, y, λ] = O {f [x, y, z, λ]}. We generally use this model to (try to) solve the inverse imaging problem ...
Stabler, Graham (2005) High resolution wide field surface plasmon
... Amongst my collegues I would like to thank Ian Stockford, a fellow student and lab mate for making the hard times bearable, for discussing ideas and of course for answering my stupid questions. I would also like to thank Nick Sawyer, Mark Pitter, Steve Sharples and Dr See for disscussion on subjects ...
... Amongst my collegues I would like to thank Ian Stockford, a fellow student and lab mate for making the hard times bearable, for discussing ideas and of course for answering my stupid questions. I would also like to thank Nick Sawyer, Mark Pitter, Steve Sharples and Dr See for disscussion on subjects ...
Conference title, upper and lower case, bolded, 18 point type
... Recently, several groups report that dielectric microspheres and microlenses can be used for nanopattering or nanoimaging [1-4]. Especially in 2011, Wang et. al [4] report that a new 50-nm-resolution nanoscope that uses optically transparent microspheres as far-field superlenses (FSL) to overcome th ...
... Recently, several groups report that dielectric microspheres and microlenses can be used for nanopattering or nanoimaging [1-4]. Especially in 2011, Wang et. al [4] report that a new 50-nm-resolution nanoscope that uses optically transparent microspheres as far-field superlenses (FSL) to overcome th ...
Corneal Wave Front
... RESULT This is only possible with corneal wavefront which breaks down any surface distortion into a combination of zernicke polynomials which can then be treated with the software on the schwind ESIRIS laser ...
... RESULT This is only possible with corneal wavefront which breaks down any surface distortion into a combination of zernicke polynomials which can then be treated with the software on the schwind ESIRIS laser ...
Illusion Optics: The Optical Transformation of an Object into Another
... 9, formed by the coordinate transformations of yð1Þ 3ðx 0:6Þ ¼ 1=4½yð4Þ 3ðx 0:6Þ, respectively. The upper middle rectangular part is composed of an homogeð1Þ ð1Þ neous medium of "ð1Þ z ¼ 4, x ¼ 4, and y ¼ 0:25, with an embedded compressed version of the metallic cup illuð1Þ ð1Þ sion of " ...
... 9, formed by the coordinate transformations of yð1Þ 3ðx 0:6Þ ¼ 1=4½yð4Þ 3ðx 0:6Þ, respectively. The upper middle rectangular part is composed of an homogeð1Þ ð1Þ neous medium of "ð1Þ z ¼ 4, x ¼ 4, and y ¼ 0:25, with an embedded compressed version of the metallic cup illuð1Þ ð1Þ sion of " ...
3 PROGRAMMABLE APODIZERS AND FRESNEL LENSES pupils
... by Yzuel and Arlegui [Yzu80] and by Yzuel and Calvo [Yzu83]. Following their numerical method, to compute the diffraction integral in Eq. (3-8) the pupil is divided into area elements, and the integral becomes a finite sum of integrals over each element. The amplitude function and the phase function ...
... by Yzuel and Arlegui [Yzu80] and by Yzuel and Calvo [Yzu83]. Following their numerical method, to compute the diffraction integral in Eq. (3-8) the pupil is divided into area elements, and the integral becomes a finite sum of integrals over each element. The amplitude function and the phase function ...
Metamaterial Electromagnetic Wave Absorbers
... (i.e. artificially engineered, subwavelength structures) one could construct artificial materials to exhibit an effective permittivity and permeability.[24] Utilizing these shaped materials, called “split ring resonators,” along with a negative dielectric wire medium, a negative index of refraction ...
... (i.e. artificially engineered, subwavelength structures) one could construct artificial materials to exhibit an effective permittivity and permeability.[24] Utilizing these shaped materials, called “split ring resonators,” along with a negative dielectric wire medium, a negative index of refraction ...
Plasmonic metamaterials Review Kan Yao and Yongmin Liu*
... as a new frontier of science involving physics, material science, engineering, optics, and nanoscience. The primary reason for the extensive interest in metamaterials lies in the fact that metamaterials have implemented a wide range of exceptional properties by engineering the internal physical stru ...
... as a new frontier of science involving physics, material science, engineering, optics, and nanoscience. The primary reason for the extensive interest in metamaterials lies in the fact that metamaterials have implemented a wide range of exceptional properties by engineering the internal physical stru ...
Diffraction - ICT for IST
... It seems quite effective to present these phenomena in a systematic way, using at first planar and then later circular waves. Dimension of slits/obstacles and wavelength It also seems very effective to systematically present diffraction phenomena using both obstacles and openings (slits) and to emph ...
... It seems quite effective to present these phenomena in a systematic way, using at first planar and then later circular waves. Dimension of slits/obstacles and wavelength It also seems very effective to systematically present diffraction phenomena using both obstacles and openings (slits) and to emph ...
Microscopic Light Field Particle Image Velocimetry
... at a frame rate of 3.9 frames per second using a Canon 5D Mark II DSLR camera. Each image was post processed to render a stack of two-dimensional images. The focal stacks were further post processed using various methods including bandpass filtering, 3D deconvolution, and intensitybased thresholding ...
... at a frame rate of 3.9 frames per second using a Canon 5D Mark II DSLR camera. Each image was post processed to render a stack of two-dimensional images. The focal stacks were further post processed using various methods including bandpass filtering, 3D deconvolution, and intensitybased thresholding ...
The Focusing and Talbot Effect of Periodic Arrays of Metallic
... al [17]. Three distinct shapes of nanoapertures named nanowave, nanohole, and nanodot, respectively, are analyzed. In addition to observing the focusing property in the air, as reported in most literature [16, 17, 23–25], we also perform an investigation using an output medium with a higher refracti ...
... al [17]. Three distinct shapes of nanoapertures named nanowave, nanohole, and nanodot, respectively, are analyzed. In addition to observing the focusing property in the air, as reported in most literature [16, 17, 23–25], we also perform an investigation using an output medium with a higher refracti ...
1 - Foundation for Research and Technology
... vapor deposition of silver and also infilling with gold with electroplating, and we were successful in both these two techniques. Coating approaches using chemical vapor deposition have successfully been developed. More recently, infilling with gold using an electroplating approach has turned out to ...
... vapor deposition of silver and also infilling with gold with electroplating, and we were successful in both these two techniques. Coating approaches using chemical vapor deposition have successfully been developed. More recently, infilling with gold using an electroplating approach has turned out to ...
Recent Trends in Optical Lithography
... Projects Agency (DARPA), Lincoln Laboratory facilitated much of the development in these areas, largely through collaborations with suppliers and research laboratories [2]. It also had built and installed in its clean rooms the world’s first 193-nm large-field projection lithography system [3], and ...
... Projects Agency (DARPA), Lincoln Laboratory facilitated much of the development in these areas, largely through collaborations with suppliers and research laboratories [2]. It also had built and installed in its clean rooms the world’s first 193-nm large-field projection lithography system [3], and ...
Recent advances in diffuse optical imaging
... a small number of times carry more spatial information than diffusive photons. Furthermore, if measurements could be made of minimally scattered photons, images could be reconstructed using the Radon transform as in x-ray CT, avoiding most of the difficulties associated with diffuse optical image rec ...
... a small number of times carry more spatial information than diffusive photons. Furthermore, if measurements could be made of minimally scattered photons, images could be reconstructed using the Radon transform as in x-ray CT, avoiding most of the difficulties associated with diffuse optical image rec ...
Enhanced 3D spatial resolution in quantitative phase
... samples using quadri-wave interferometry,” Proc. SPIE 8587, 85871D (2013). ...
... samples using quadri-wave interferometry,” Proc. SPIE 8587, 85871D (2013). ...
Femtosecond X-ray measurement of coherent lattice vibrations near
... The study of phase-transition dynamics in solids beyond a time-averaged kinetic description requires direct measurement of the changes in the atomic configuration along the physical pathways leading to the new phase. The timescale of interest is in the range 10214 to 10212 s. Until recently, only op ...
... The study of phase-transition dynamics in solids beyond a time-averaged kinetic description requires direct measurement of the changes in the atomic configuration along the physical pathways leading to the new phase. The timescale of interest is in the range 10214 to 10212 s. Until recently, only op ...
Chapter 18 - Handbook of Optics
... was developed by Wynne (1965, 1974) for the region of the spectrum extending from 365 to 1014 nm. It is used to extend the field of a parabolic mirror. Versions for a Ritchey-Chretien primary also exist. The corrector is able to correct spherical aberration, coma, astigmatism, and field curvature wh ...
... was developed by Wynne (1965, 1974) for the region of the spectrum extending from 365 to 1014 nm. It is used to extend the field of a parabolic mirror. Versions for a Ritchey-Chretien primary also exist. The corrector is able to correct spherical aberration, coma, astigmatism, and field curvature wh ...
pdf file
... analysis based on the Gaussian beam approximation was shown to yield the observed features and also predicted the dependence on the beam parameters. ...
... analysis based on the Gaussian beam approximation was shown to yield the observed features and also predicted the dependence on the beam parameters. ...
Optical and acoustic beam shaping for imaging and
... Figure 1-3 The wavefronts of a plane wave traveling in 3D-space. ............... 9 Figure 2-1 Gaussian beam waist diagram ........................................................ 13 Figure 2-2 Transverse intensity distribution of higher-order HermiteGaussian and Laguerre-Gaussian modes laser beams . ...
... Figure 1-3 The wavefronts of a plane wave traveling in 3D-space. ............... 9 Figure 2-1 Gaussian beam waist diagram ........................................................ 13 Figure 2-2 Transverse intensity distribution of higher-order HermiteGaussian and Laguerre-Gaussian modes laser beams . ...
Direct spatiotemporal measurements of accelerating ultrashort
... In our experiments, ultrashort, accelerating Bessel pulses were generated using a KM Labs Ti:Sa oscillator with 33 nm of bandwidth (FWHM) and an approximately Gaussian spectrum with a central wavelength λ0 = 805 nm. The spot size of the laser beam was 4 mm (FWHM). A fused-silica axicon with an apex ...
... In our experiments, ultrashort, accelerating Bessel pulses were generated using a KM Labs Ti:Sa oscillator with 33 nm of bandwidth (FWHM) and an approximately Gaussian spectrum with a central wavelength λ0 = 805 nm. The spot size of the laser beam was 4 mm (FWHM). A fused-silica axicon with an apex ...
5 The Basics of Confocal Microscopy
... (Spring and Inoue, 1997) where the optical microscope plays a central role in a configuration that consists of one or more electronic detectors, a computer (for image display, processing, output, and storage), and several laser systems combined with wavelength selection devices and a beam scanning a ...
... (Spring and Inoue, 1997) where the optical microscope plays a central role in a configuration that consists of one or more electronic detectors, a computer (for image display, processing, output, and storage), and several laser systems combined with wavelength selection devices and a beam scanning a ...
genius PHYSICS
... A point object is placed mid-way between two plane mirrors distance 'a' apart. The plane mirror forms an infinite number of images due to multiple reflection. The distance between the nth order image formed in the two mirrors is (a) na ...
... A point object is placed mid-way between two plane mirrors distance 'a' apart. The plane mirror forms an infinite number of images due to multiple reflection. The distance between the nth order image formed in the two mirrors is (a) na ...
McIntyre, Stuart (2013) Limitations to light microscope resolution in
... preparations, while simultaneously optically sectioning the samples. However, due to the complexity of these experimental set-ups, it is difficult to set up control samples that allow the user to predict how their sample is affecting the quality of the data being captured. ...
... preparations, while simultaneously optically sectioning the samples. However, due to the complexity of these experimental set-ups, it is difficult to set up control samples that allow the user to predict how their sample is affecting the quality of the data being captured. ...
Superlens
A practical superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution. Many lens designs have been proposed that go beyond the diffraction limit in some way, but there are constraints and obstacles involved in realizing each of them.