MieScatt09
... ahead because of this focused forward scattering effect when the particles are comparable to or larger than the wavelength of light. In fact, measuring the angle range over which the forward scattering is quite strong yields an indication of the scattering particle size. Reflection from clouds: We k ...
... ahead because of this focused forward scattering effect when the particles are comparable to or larger than the wavelength of light. In fact, measuring the angle range over which the forward scattering is quite strong yields an indication of the scattering particle size. Reflection from clouds: We k ...
Confocal Microscopy - Emory Physics
... the Rayleigh criterion, the minimum separation between two Airy disks for which they are distinguishable is equal to their radius. This corresponds to the maximum of one Airy disk superimposed on the minimum of the other. Resolution along the optical axis is also limited by diffraction effects. As i ...
... the Rayleigh criterion, the minimum separation between two Airy disks for which they are distinguishable is equal to their radius. This corresponds to the maximum of one Airy disk superimposed on the minimum of the other. Resolution along the optical axis is also limited by diffraction effects. As i ...
Optical diffraction tomography for high resolution live cell imaging
... transparent living biological cells. Examples are phase contrast microscopy[1] and differential interference microscopy[2], which have been widely used in cell biology studies. In essence, both of techniques make use of optical interferometry to enhance contrast. Interferometry converts phase change ...
... transparent living biological cells. Examples are phase contrast microscopy[1] and differential interference microscopy[2], which have been widely used in cell biology studies. In essence, both of techniques make use of optical interferometry to enhance contrast. Interferometry converts phase change ...
Microsoft Word - DORAS
... optical impulse response investigations, optical analogue–digital (A-D) conversions, high-speed optical interconnects etc. The most common, amongst the given range of applications, is its use as an RZ transmitter to achieve terabit per second photonic communication systems by exploiting the techniq ...
... optical impulse response investigations, optical analogue–digital (A-D) conversions, high-speed optical interconnects etc. The most common, amongst the given range of applications, is its use as an RZ transmitter to achieve terabit per second photonic communication systems by exploiting the techniq ...
Femtosecond self-guided atmospheric light strings
... severe thunderstorms18 and several experimental groups are working worldwide on this important problem. In addition, the ability to generate a white-light continuum at a preselected location in the upper atmosphere has huge potential in remote sensing and ladar applications. In fact, an experiment b ...
... severe thunderstorms18 and several experimental groups are working worldwide on this important problem. In addition, the ability to generate a white-light continuum at a preselected location in the upper atmosphere has huge potential in remote sensing and ladar applications. In fact, an experiment b ...
Chapter 2 Introduction to Waveguide and Bragg Grating Theory 2.1
... n1 ) and the surrounding cladding regions. The waveguide effective index can then be determined through calculation of the propagation constant kz in the direction of propagation. It can be shown [5] ...
... n1 ) and the surrounding cladding regions. The waveguide effective index can then be determined through calculation of the propagation constant kz in the direction of propagation. It can be shown [5] ...
Chapter 30 The Law of Reflection
... Figure 30.6 A plane mirror. To determine how an image is formed, we need consider only two of the many light rays that emanate from the point O. Consider first the ray OA. It makes an angle of incidence i1 with the normal to the mirror. By the law of reflection, this ray is reflected as AC such that ...
... Figure 30.6 A plane mirror. To determine how an image is formed, we need consider only two of the many light rays that emanate from the point O. Consider first the ray OA. It makes an angle of incidence i1 with the normal to the mirror. By the law of reflection, this ray is reflected as AC such that ...
Soft-x-ray interferometer for single-shot laser linewidth measurements
... cos2 u cos2 u where u is the diffracted angle from the f irst grating, z is the distance between the gratings, and zd is the distance from the second grating to the detector. For the system to work properly Dx should be smaller than the coherence distance of the source. For a grazing incidence conf ...
... cos2 u cos2 u where u is the diffracted angle from the f irst grating, z is the distance between the gratings, and zd is the distance from the second grating to the detector. For the system to work properly Dx should be smaller than the coherence distance of the source. For a grazing incidence conf ...
Calibration of Optical Tweezers
... Fig. 10 Future Works Optical tweezers play an important role in numerous biological studies. Now that the trap strength of our optical tweezers is known, it would be interesting to work with some applications such as measuring the force of different molecular motors. To do this, one would need to at ...
... Fig. 10 Future Works Optical tweezers play an important role in numerous biological studies. Now that the trap strength of our optical tweezers is known, it would be interesting to work with some applications such as measuring the force of different molecular motors. To do this, one would need to at ...
Lecture notes lecture 11 (diffraction)
... S-source, L1-Lens, S1-slit, Ccollimator, L2-Lens, G-grating Light from source focused by L1 on vertical slit S1 placed in focal plane of L2. Emerging light is a plane wave incident on G-grating: diffracted into diffraction patter, with m=0 order diffracted at angle θ = 0 along central axis of the gr ...
... S-source, L1-Lens, S1-slit, Ccollimator, L2-Lens, G-grating Light from source focused by L1 on vertical slit S1 placed in focal plane of L2. Emerging light is a plane wave incident on G-grating: diffracted into diffraction patter, with m=0 order diffracted at angle θ = 0 along central axis of the gr ...
Technologies - E
... 1.6. Sub-wavelength-diameter silica wires for low-loss optical wave guiding (1) ...
... 1.6. Sub-wavelength-diameter silica wires for low-loss optical wave guiding (1) ...
femtosecond laser - UCSB - Optical Characterization Lab
... • Kerr’s effect – inetnsity-dependent index of refraction: n = n0 + n2I • The e/m field inside the laser cavity has Gaussian distribution of intensity which creates similar distribution of the refractive index. • High-intensity beam is self-focused by the photoinduced lens. ...
... • Kerr’s effect – inetnsity-dependent index of refraction: n = n0 + n2I • The e/m field inside the laser cavity has Gaussian distribution of intensity which creates similar distribution of the refractive index. • High-intensity beam is self-focused by the photoinduced lens. ...
Section 13.3 Telescopes and Microscopes
... Let’s begin by looking at light telescopes, which form images of distant objects either on film or in front of your eyes. Most telescopes used by professional astronomers are photographic—essentially gigantic telephoto lenses that form real images of stars on pieces of film or electronic light senso ...
... Let’s begin by looking at light telescopes, which form images of distant objects either on film or in front of your eyes. Most telescopes used by professional astronomers are photographic—essentially gigantic telephoto lenses that form real images of stars on pieces of film or electronic light senso ...
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects light back to its source with a minimum of scattering. In a retroreflector an electromagnetic wavefront is reflected back along a vector that is parallel to but opposite in direction from the wave's source. The angle of incidence at which the device or surface reflects light in this way is greater than zero, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence.