Femto-Photography: Capturing and Visualizing the
... also been used in this context [Heide et al. 2013]. Our system can record and reconstruct space-time world information of incoherent light propagation in free-space, table-top scenes, at a resolution of up to 672 × 1000 pixels and under 2 picoseconds per frame. The varied range and complexity of the ...
... also been used in this context [Heide et al. 2013]. Our system can record and reconstruct space-time world information of incoherent light propagation in free-space, table-top scenes, at a resolution of up to 672 × 1000 pixels and under 2 picoseconds per frame. The varied range and complexity of the ...
On the conservation of fundamental optical quantities in non
... Formally, we have to check if this function tends to zero fast enough to keep the expression for the electromagnetic energy finite, as discussed in [5]; it is easily shown that this must be the case given the dominant nature of the Gaussian decay. The rotation matrix along with the integration over t ...
... Formally, we have to check if this function tends to zero fast enough to keep the expression for the electromagnetic energy finite, as discussed in [5]; it is easily shown that this must be the case given the dominant nature of the Gaussian decay. The rotation matrix along with the integration over t ...
Sum of Coherent Systems Decomposition by SVD
... The Hopkins partially coherent imaging equation is expanded by eigenfunctions into a sum of coherent systems (SOCS). The result is a bank of linear systems whose outputs are squared, scaled and summed. This technique is useful because of the partial linearity of the resulting system approximation. T ...
... The Hopkins partially coherent imaging equation is expanded by eigenfunctions into a sum of coherent systems (SOCS). The result is a bank of linear systems whose outputs are squared, scaled and summed. This technique is useful because of the partial linearity of the resulting system approximation. T ...
Geometric limits to geometric optical imaging with infinite, planar
... rays, but in such a way that miniaturizing the components also miniaturizes the offset. For many visual applications, the offset can be made so small that it can be neglected. The result is a thin transparent sheet with a homogeneous appearance that changes the direction of transmitted light rays in ...
... rays, but in such a way that miniaturizing the components also miniaturizes the offset. For many visual applications, the offset can be made so small that it can be neglected. The result is a thin transparent sheet with a homogeneous appearance that changes the direction of transmitted light rays in ...
Encoding and Decoding Non-separable States of Polarization and Spatial Mode of Single Photons
... using three wave plates (two half and one quarter) followed by a polarizer; and then an SLM in diffraction mode, via a forked diffraction pattern with a spatial modulation. This is shown in Fig. 1b. A sample pattern with a low fringe resolution is shown in the insert to the figure. The SLM converted ...
... using three wave plates (two half and one quarter) followed by a polarizer; and then an SLM in diffraction mode, via a forked diffraction pattern with a spatial modulation. This is shown in Fig. 1b. A sample pattern with a low fringe resolution is shown in the insert to the figure. The SLM converted ...
Light sheet-based fluorescence microscopy: more dimensions, more
... The same holds true in confocal fluorescence microscopy. Optical sectioning is not obtained in the illumination process, but by discriminating against the out of focus fluorescence light with a pinhole in front of the detector. Hence, most of the light emitted by the specimen does not reach the dete ...
... The same holds true in confocal fluorescence microscopy. Optical sectioning is not obtained in the illumination process, but by discriminating against the out of focus fluorescence light with a pinhole in front of the detector. Hence, most of the light emitted by the specimen does not reach the dete ...
Spider Silk: The Mother Nature`s Biological Superlens
... To summarise, this paper verified that the minor ampullate spider silk, spun from the Nephila edulis spider, has the properties to perform as an optical superlens by utilising photonic nanojets to carry the surface information at a highspatial-frequency, which can resolve 100-nm objects and patterns ...
... To summarise, this paper verified that the minor ampullate spider silk, spun from the Nephila edulis spider, has the properties to perform as an optical superlens by utilising photonic nanojets to carry the surface information at a highspatial-frequency, which can resolve 100-nm objects and patterns ...
Optical diffraction tomography for high resolution live cell imaging
... quantitative 3D mapping of refractive index in live cells in their native state. TPM can collect angular images ranging from -60 to 60 degrees in 10 seconds. The rotating-beam geometry was adopted to avoid perturbing specimens during data acquisition, and filtered backprojection along with an iterat ...
... quantitative 3D mapping of refractive index in live cells in their native state. TPM can collect angular images ranging from -60 to 60 degrees in 10 seconds. The rotating-beam geometry was adopted to avoid perturbing specimens during data acquisition, and filtered backprojection along with an iterat ...
Two-Photon Excited Fluorescence Microscopy - Spectra
... nanometers of path length, enabling high resolution imaging with low out-of-focus background. Another advantage of TPM is the ability to image thick samples, even when they are highly heterogeneous. This is due to the use of longer wavelengths (near IR) relative to shorter ones (visible and UV) used ...
... nanometers of path length, enabling high resolution imaging with low out-of-focus background. Another advantage of TPM is the ability to image thick samples, even when they are highly heterogeneous. This is due to the use of longer wavelengths (near IR) relative to shorter ones (visible and UV) used ...
Optical Filters for Laser-based Fluorescence Microscopes
... Semrock laser filter sets inherently provide excellent image registration performance—when interchanging these sets with one another, no appreciable pixel shift is observed. And images obtained with the laser filter sets exhibit excellent image registration not only with one another, but also with i ...
... Semrock laser filter sets inherently provide excellent image registration performance—when interchanging these sets with one another, no appreciable pixel shift is observed. And images obtained with the laser filter sets exhibit excellent image registration not only with one another, but also with i ...
Coherence properties of light propagated through a
... The spatial coherence properties of wavefields are of fundamental importance since they play a key role in many optical imaging techniques.1 For example, it is well-known that partially coherent wavefields have the potential to carry more information content than fully coherent wavefields and that t ...
... The spatial coherence properties of wavefields are of fundamental importance since they play a key role in many optical imaging techniques.1 For example, it is well-known that partially coherent wavefields have the potential to carry more information content than fully coherent wavefields and that t ...
PDF Link
... scattering and QPI measurements. The main result of our calculation, Eq. (13), was obtained within the Born approximation. This formalism applies for weakly, singly scattering media, such as single, unlabeled cells and thin slices of untagged tissues. These particular systems can offer a broad range ...
... scattering and QPI measurements. The main result of our calculation, Eq. (13), was obtained within the Born approximation. This formalism applies for weakly, singly scattering media, such as single, unlabeled cells and thin slices of untagged tissues. These particular systems can offer a broad range ...
Optical imaging using binary sensors Aur´elien Bourquard, Franc¸ois Aguet, and Michael Unser
... 18. L. Sbaiz, F. Yang, E. Charbon, S. Susstrunk, and M. Vetterli, “The gigavision camera,” in “2009 IEEE International Conference on Acoustics, Speech and Signal Processing,” (2009), pp. 1093–1096. ...
... 18. L. Sbaiz, F. Yang, E. Charbon, S. Susstrunk, and M. Vetterli, “The gigavision camera,” in “2009 IEEE International Conference on Acoustics, Speech and Signal Processing,” (2009), pp. 1093–1096. ...
Preface The history of science is, to a considerable degree, the
... motivation was not creating a new imaging technique but rather proving the wave nature of X-rays, lauegrams had very soon become the main imaging tool in crystallography. Lauegrams are not conventional images for visual observation. However, using “lauegrams”, one could numerically reconstruct the s ...
... motivation was not creating a new imaging technique but rather proving the wave nature of X-rays, lauegrams had very soon become the main imaging tool in crystallography. Lauegrams are not conventional images for visual observation. However, using “lauegrams”, one could numerically reconstruct the s ...
Novel 3-D microscopy techniques - Purdue University Cytometry
... Advantages of 2-p microscopy • The tissue above and below the plane of focus is merely subjected to infrared light and multiphoton excitation is restricted to a small focal volume (because fluorescence from the two-photon effect depends on the square of the incident light intensity, which in turn d ...
... Advantages of 2-p microscopy • The tissue above and below the plane of focus is merely subjected to infrared light and multiphoton excitation is restricted to a small focal volume (because fluorescence from the two-photon effect depends on the square of the incident light intensity, which in turn d ...
Novel tone mapping, and its fixed-point design
... real-time processing, which would constrain TMOs much more than offline processing. Nevertheless, Eilertsen et al. provide insights relevant for the real-time tone mapping of logarithmic CMOS image sensors, the subject of this article. Regarding ‘‘temporal artifacts,’’ such as ghosting or flickering ...
... real-time processing, which would constrain TMOs much more than offline processing. Nevertheless, Eilertsen et al. provide insights relevant for the real-time tone mapping of logarithmic CMOS image sensors, the subject of this article. Regarding ‘‘temporal artifacts,’’ such as ghosting or flickering ...
Untitled
... Joyce Farrell, Stanford University, United States, General Chair Byoungho Lee, Seoul National University, South Korea, General Chair Kenneth Barnard, US Air Force Research Laboratory, United States, Program Chair Pietro Ferraro, Istituto Nazionale di Ottica (CNR), Italy, Program Chair Kristina Irsch ...
... Joyce Farrell, Stanford University, United States, General Chair Byoungho Lee, Seoul National University, South Korea, General Chair Kenneth Barnard, US Air Force Research Laboratory, United States, Program Chair Pietro Ferraro, Istituto Nazionale di Ottica (CNR), Italy, Program Chair Kristina Irsch ...
12. CONFOCAL MICROSCOPY • Confocal microscopy can render
... Confocal microscopy can render depth-resolved slices through a 3D object by rejecting much of the out of focus light via a pinhole. The image is reconstructed serially, i.e. point by point, using a single photodetector, rather than in parallel (in bright field, phase contrast, etc.), where a 2D ...
... Confocal microscopy can render depth-resolved slices through a 3D object by rejecting much of the out of focus light via a pinhole. The image is reconstructed serially, i.e. point by point, using a single photodetector, rather than in parallel (in bright field, phase contrast, etc.), where a 2D ...
Observation of modulational instability in Bose
... due to the presence of a partial pulse reshaping when using exact experimental conditions, as well as to losses and antitrapping potential not taken into account in our theoretical model. Note also that below as = −1.2 stable soliton solutions of the initial condensate do not exist, as determined by ...
... due to the presence of a partial pulse reshaping when using exact experimental conditions, as well as to losses and antitrapping potential not taken into account in our theoretical model. Note also that below as = −1.2 stable soliton solutions of the initial condensate do not exist, as determined by ...
Biology 177: Principles of Modern Microscopy
... • Near-field phenomenon • Higher frequency, more information • Formed at boundary between two media with different wave motion properties • Evanescent waves quantum tunneling phenomenon • Product of Schrödinger wave equations ...
... • Near-field phenomenon • Higher frequency, more information • Formed at boundary between two media with different wave motion properties • Evanescent waves quantum tunneling phenomenon • Product of Schrödinger wave equations ...
Résumé
... to improve the resolution. This technique is used successfully both with optics or acoustic modality [3,4], but it requires a priori knowledge of the medium. The second one only uses ballistic photons to make images: Optical Coherence Tomography (OCT) [5], confocal [6], fluorescence [7] and nonlinea ...
... to improve the resolution. This technique is used successfully both with optics or acoustic modality [3,4], but it requires a priori knowledge of the medium. The second one only uses ballistic photons to make images: Optical Coherence Tomography (OCT) [5], confocal [6], fluorescence [7] and nonlinea ...
A Simple Classroom Demonstration of Natural Convection
... High quality schlieren images require precise construction and positioning of the optical elements. In this case, the precision is not as great as can be achieved in a laboratory, and hence the method is less sensitive to density variations. For this reason, the simple setup described above is only ...
... High quality schlieren images require precise construction and positioning of the optical elements. In this case, the precision is not as great as can be achieved in a laboratory, and hence the method is less sensitive to density variations. For this reason, the simple setup described above is only ...
Imaging and Non-imaging System Modeling in ASAP
... called radiance. Intensity and irradiance can be obtained by appropriate integration of the radiance. Photometry is really a normalized form of radiometry. Normalization is a process where a measurement or calculation is made to conform to a standard or established norm. The established norm in the ...
... called radiance. Intensity and irradiance can be obtained by appropriate integration of the radiance. Photometry is really a normalized form of radiometry. Normalization is a process where a measurement or calculation is made to conform to a standard or established norm. The established norm in the ...
Lasers and lenses - University of Toronto
... laser light, and Eric A. Cornell, Wolfgang Ketterle and Carl E. Wieman were awarded the prize in 2001 for the achievement of Bose-Einstein condensation using optical and magnetic techniques. An optical dipole trap (ODT) is a purely optical means of trapping neutral atoms. A laser beam can be focused ...
... laser light, and Eric A. Cornell, Wolfgang Ketterle and Carl E. Wieman were awarded the prize in 2001 for the achievement of Bose-Einstein condensation using optical and magnetic techniques. An optical dipole trap (ODT) is a purely optical means of trapping neutral atoms. A laser beam can be focused ...
Blind sectional image reconstruction for optical
... We demonstrate the performance of the blind sectional image reconstruction on experimental data in Fig. 1. The system is composed of a Mach–Zehnder interferometer and an electronic processing unit. A beam splitter (BS1) divides the laser beam into upper- and lower-path beams. The upper path generate ...
... We demonstrate the performance of the blind sectional image reconstruction on experimental data in Fig. 1. The system is composed of a Mach–Zehnder interferometer and an electronic processing unit. A beam splitter (BS1) divides the laser beam into upper- and lower-path beams. The upper path generate ...