lecture_five_2016
... sheet. The sheet is stretched aligning molecules and causing them to be birefringent. The molecules selectively attach themselves to aligned polymer molecules, so that absorption is high in one plane and weak in the other. The transmitted beam is linearly polarized. 5.2.4 Polarization of scattered l ...
... sheet. The sheet is stretched aligning molecules and causing them to be birefringent. The molecules selectively attach themselves to aligned polymer molecules, so that absorption is high in one plane and weak in the other. The transmitted beam is linearly polarized. 5.2.4 Polarization of scattered l ...
PP_SSL_Modeling - LAS
... As known textbooks of lasers, beam propagation through a series of parabolic optical elements can be described by the use of ABCD matrices. In many cases the optical elements in a resonator, such as spherical mirrors and dielectric interfaces, can be approximated parabolically. The ABCD Matrices fo ...
... As known textbooks of lasers, beam propagation through a series of parabolic optical elements can be described by the use of ABCD matrices. In many cases the optical elements in a resonator, such as spherical mirrors and dielectric interfaces, can be approximated parabolically. The ABCD Matrices fo ...
Development of a Total Internal Reflection Illumination System for
... receptor subunits on the cell membrane, and to determine the extent to which both subunits share the same distribution. This method will be discussed first; ultimately, it was not successful, so an alte ...
... receptor subunits on the cell membrane, and to determine the extent to which both subunits share the same distribution. This method will be discussed first; ultimately, it was not successful, so an alte ...
Simultaneous trapping of low-index and high
... wonder whether a second (high-index) particle could be simultaneously trapped in the beam. Indeed, a simple rayoptics calculation predicts that 60–80% of the rays bypass a trapped HGS, depending on the beam-to-core size ratio, h 5 w 0 /w v , at the input aperture of the focusing objective. According ...
... wonder whether a second (high-index) particle could be simultaneously trapped in the beam. Indeed, a simple rayoptics calculation predicts that 60–80% of the rays bypass a trapped HGS, depending on the beam-to-core size ratio, h 5 w 0 /w v , at the input aperture of the focusing objective. According ...
Deconvolution Microscopy
... The greatest limitation of optical microscopy is spatial resolution, which is in the range of the wavelength of light used. The ultimate goal of cell microscopy is to capture the activity of cell components. In this respect, the resolution of limited numerical aperture wide-field microscopy may not ...
... The greatest limitation of optical microscopy is spatial resolution, which is in the range of the wavelength of light used. The ultimate goal of cell microscopy is to capture the activity of cell components. In this respect, the resolution of limited numerical aperture wide-field microscopy may not ...
EFFECT OF TEMPERATURE ON THE REFRACTIVE INDICES AND
... Liquid crystals are anisotropic fluids which show specific optical properties due to the anisotropy of molecular organization. As they are birefringent materials, they shows double refraction phenomenon, having two indices of refraction (extraordinary ne and ordinary no indices) and birefringence ∆n ...
... Liquid crystals are anisotropic fluids which show specific optical properties due to the anisotropy of molecular organization. As they are birefringent materials, they shows double refraction phenomenon, having two indices of refraction (extraordinary ne and ordinary no indices) and birefringence ∆n ...
... deviate from the actual behaviour whenever the hologram is thin or the refractive index is high. In these cases, it is necessary to use a more general Coupled Wave Theory (CW) or the Rigorous Coupled Wave Theory (RCW). Both of these theories allow for more than two orders propagating inside the holo ...
Imaging complex structures with diffuse light
... by employing time gating of early-arriving photons [27]. However, this approach uses photons that travel ballistically through the sample and is therefore not useful in optically thick tissues such as breast and brain. In this contribution, we demonstrate for the first time that three-dimensional, q ...
... by employing time gating of early-arriving photons [27]. However, this approach uses photons that travel ballistically through the sample and is therefore not useful in optically thick tissues such as breast and brain. In this contribution, we demonstrate for the first time that three-dimensional, q ...
How does a confocal microscope work
... remember this from introductory optics, perhaps you have seen a formula such as 1/s + 1/s' = 1/f for locating the image formed by a lens. Points don't need to be at the focal point of the lens in order for the lens to form an image.) So, we want to just look at the blue point, that is, the point dir ...
... remember this from introductory optics, perhaps you have seen a formula such as 1/s + 1/s' = 1/f for locating the image formed by a lens. Points don't need to be at the focal point of the lens in order for the lens to form an image.) So, we want to just look at the blue point, that is, the point dir ...
Experimental observation of the far field diffraction patterns of
... One can observe that the innermost part of the profile is diffuse and that a brighter external ring is generated for this case. The figure also shows the profile evolution with the increase of the nonlinear phase-shift. The number of generated rings varies linearly with the laser power. The experime ...
... One can observe that the innermost part of the profile is diffuse and that a brighter external ring is generated for this case. The figure also shows the profile evolution with the increase of the nonlinear phase-shift. The number of generated rings varies linearly with the laser power. The experime ...
Introduction of Minor Nonlinear Effect Strain Insensitive SMF Fitting
... (PCFs) have shown superior transmission performance but their fabrication process is much more complicated than conventional fiber manufacture process. In contrast to conventional optical fibers, in PCFs, not only in higher wavelengths the BL surpasses the critical value but also in lower wavelength ...
... (PCFs) have shown superior transmission performance but their fabrication process is much more complicated than conventional fiber manufacture process. In contrast to conventional optical fibers, in PCFs, not only in higher wavelengths the BL surpasses the critical value but also in lower wavelength ...
PART 3_ir spectra_01
... Are you getting the concept? At what angle would you collect the 1st order diffracted light with l = 500 nm if a broad spectrum beam is incident on a 600 groove/mm grating at qi = 10°? For l = 225 nm? For l = 750 nm? ...
... Are you getting the concept? At what angle would you collect the 1st order diffracted light with l = 500 nm if a broad spectrum beam is incident on a 600 groove/mm grating at qi = 10°? For l = 225 nm? For l = 750 nm? ...
Full-Text PDF
... Research activities in this field have many orientations: some articles treat the elaboration of models to compute and predict holograms. Others emphasize on the development of new image processing techniques for object reconstruction, estimation of ultimate sensitivity of the set-up, or design of s ...
... Research activities in this field have many orientations: some articles treat the elaboration of models to compute and predict holograms. Others emphasize on the development of new image processing techniques for object reconstruction, estimation of ultimate sensitivity of the set-up, or design of s ...
CP1: Investigation into the Feasibility of a Three Axis
... combining of electromagnetic waves in order to obtain information from those waves. It uses the principle of superposition: that the amplitudes of electromagnetic waves add vectorially when interfered. The relative phase of the combined waves dictates whether this superposition leads to constructive ...
... combining of electromagnetic waves in order to obtain information from those waves. It uses the principle of superposition: that the amplitudes of electromagnetic waves add vectorially when interfered. The relative phase of the combined waves dictates whether this superposition leads to constructive ...
polygonal mirror laser scanning heads: characteristic functions
... dimensional (2D) PM plus GS devices, where the PM produces fast scan lines that are precisely positioned by the GS (as an alternative to dual axis GSs) [18]; (iv) double prismatic PMs for generating short laser impulses; (v) double pyramidal PMs (a normal one inside a similar pyramidal cavity) for O ...
... dimensional (2D) PM plus GS devices, where the PM produces fast scan lines that are precisely positioned by the GS (as an alternative to dual axis GSs) [18]; (iv) double prismatic PMs for generating short laser impulses; (v) double pyramidal PMs (a normal one inside a similar pyramidal cavity) for O ...
Optical aberration
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An optical aberration is a departure of the performance of an optical system from the predictions of paraxial optics. In an imaging system, it occurs when light from one point of an object does not converge into (or does not diverge from) a single point after transmission through the system. Aberrations occur because the simple paraxial theory is not a completely accurate model of the effect of an optical system on light, rather than due to flaws in the optical elements.Aberration leads to blurring of the image produced by an image-forming optical system. Makers of optical instruments need to correct optical systems to compensate for aberration.The articles on reflection, refraction and caustics discuss the general features of reflected and refracted rays.