Indicatrix - University of Florida
... Vibration directions of two rays must parallel axes of ellipse Lengths of axes tells you magnitudes of the indices of refraction Indices of refraction tell you the birefringence expected for any direction a grain may be cut Indices of refraction tell you the angle that light is refracted ...
... Vibration directions of two rays must parallel axes of ellipse Lengths of axes tells you magnitudes of the indices of refraction Indices of refraction tell you the birefringence expected for any direction a grain may be cut Indices of refraction tell you the angle that light is refracted ...
Characterization of acceptance angles of small circular
... detector with limited NA is justified by assuming that rays of light in the far field does not deviate from its path before reaching the detector optics. Figure 6 shows the examples of 2D plots of power flow obtained with the simulation. Figure 7 shows representative plots of the simulation results. ...
... detector with limited NA is justified by assuming that rays of light in the far field does not deviate from its path before reaching the detector optics. Figure 6 shows the examples of 2D plots of power flow obtained with the simulation. Figure 7 shows representative plots of the simulation results. ...
Theoretical derivation of the depth average of remotely sensed
... A major tool in the study of the distribution of optical parameters on global scales are inversions of such parameters obtained from color sensors such as SeaWiFS, MODIS, and MERIS. Such inversions do not take into account the vertical structure of the parameters. Especially in the coastal zones, th ...
... A major tool in the study of the distribution of optical parameters on global scales are inversions of such parameters obtained from color sensors such as SeaWiFS, MODIS, and MERIS. Such inversions do not take into account the vertical structure of the parameters. Especially in the coastal zones, th ...
Option C – Imaging
... To determine the focal length of a lens experimentally it is necessary to use parallel rays of light. These are conveniently obtained from any distant object – spherical wavefronts from a point source become effectively parallel if they are a long distance from their origin. The focal length of a le ...
... To determine the focal length of a lens experimentally it is necessary to use parallel rays of light. These are conveniently obtained from any distant object – spherical wavefronts from a point source become effectively parallel if they are a long distance from their origin. The focal length of a le ...
Technologies - E
... These devices are responsible for the light distribution from one or several input fibers to one or several output fibers ...
... These devices are responsible for the light distribution from one or several input fibers to one or several output fibers ...
Use of beam parameters in optical component testing
... Optical systems and components have become ubiquitous in modern society. Advanced laser technologies, optics, and electronics are often combined into devices such as compact disk recorders and fiber optic networks, which were unknown a generation ago. With the explosive growth of photonics industrie ...
... Optical systems and components have become ubiquitous in modern society. Advanced laser technologies, optics, and electronics are often combined into devices such as compact disk recorders and fiber optic networks, which were unknown a generation ago. With the explosive growth of photonics industrie ...
Direct observation of light focusing by single photoreceptor cell nuclei
... are arguments speaking for both the improvement of spatial vision [12] and for their role in colour vision [13–16] but it is certain that their raison d’être lies in optical processing of light before detection. One of the most recent findings [17] showed that the shape and RI distribution of retin ...
... are arguments speaking for both the improvement of spatial vision [12] and for their role in colour vision [13–16] but it is certain that their raison d’être lies in optical processing of light before detection. One of the most recent findings [17] showed that the shape and RI distribution of retin ...
Laser and nonlinear optics
... The geometry is defined by the distance L and the radius of curvature of both mirrors r1 , r2 as well as their diameter and shape (e.g. round or rectangular). Knowing these parameters we can determine the stationary spatial distribution of the electromagnetic field in the resonator (→ assuming a sta ...
... The geometry is defined by the distance L and the radius of curvature of both mirrors r1 , r2 as well as their diameter and shape (e.g. round or rectangular). Knowing these parameters we can determine the stationary spatial distribution of the electromagnetic field in the resonator (→ assuming a sta ...
Correction of sampling errors due to laser tuning
... it changes throughout a wavelength sweep. This information is then used to resample the fringe data from a grid of equal time intervals to a grid of equal frequency intervals [14, 15]. The third technique, the frequency-sampling method, also uses an auxiliary interferometer, but avoids the potential ...
... it changes throughout a wavelength sweep. This information is then used to resample the fringe data from a grid of equal time intervals to a grid of equal frequency intervals [14, 15]. The third technique, the frequency-sampling method, also uses an auxiliary interferometer, but avoids the potential ...
Fiber Optic Communications
... Optical Fibers 3.1 Light Propagation in Optical Fibers Fiber Modes – Fiber mode refers to the way waves propagate down a fiber. – The geometry of the fiber as well as the existence of waves traveling forward and backward allows only certain ray angles to propagate. ...
... Optical Fibers 3.1 Light Propagation in Optical Fibers Fiber Modes – Fiber mode refers to the way waves propagate down a fiber. – The geometry of the fiber as well as the existence of waves traveling forward and backward allows only certain ray angles to propagate. ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... Abstract: Practically in all kind of communication system, more or less losses are involved. To make the system more efficient, it is needed to identify and trace the faults & losses In optical fiber communication, optical time domain reflectometry (OTDR) is a commonly used technique for characteriz ...
... Abstract: Practically in all kind of communication system, more or less losses are involved. To make the system more efficient, it is needed to identify and trace the faults & losses In optical fiber communication, optical time domain reflectometry (OTDR) is a commonly used technique for characteriz ...
Optical Springs at the 40m
... Central part (Michelson, PRC, SRC) signals are extracted from beat between f1 and f2, not including arm cavity information. Optical Springs at the 40m ...
... Central part (Michelson, PRC, SRC) signals are extracted from beat between f1 and f2, not including arm cavity information. Optical Springs at the 40m ...
Photoacoustic microscopy with 2
... microvessels without optical clearing. The 2-m PAM uses safe radiation for photoacoustic excitation. The pulse energy was measured to be 10 nJ at the exit of the single-mode delivery fiber. If the focal plane is tuned to 100 m below the skin, then the surface optical fluence is calculated to be ⬍0 ...
... microvessels without optical clearing. The 2-m PAM uses safe radiation for photoacoustic excitation. The pulse energy was measured to be 10 nJ at the exit of the single-mode delivery fiber. If the focal plane is tuned to 100 m below the skin, then the surface optical fluence is calculated to be ⬍0 ...
Get PDF - OSA Publishing
... by a sech-like envelope of the corresponding Bloch wave, centered either on- or off-site. Near the opposite edge of the gap, i.e. approaching the spectral band, the solitons develop extended ”tails” with the spatial structure of the Bloch wave at the corresponding band edge [14]. For a sufficiently ...
... by a sech-like envelope of the corresponding Bloch wave, centered either on- or off-site. Near the opposite edge of the gap, i.e. approaching the spectral band, the solitons develop extended ”tails” with the spatial structure of the Bloch wave at the corresponding band edge [14]. For a sufficiently ...
Spectral phase conjugation via temporal imaging
... nonlinear media [20,21], cross-phase modulation [22,23], two-photon absorption [24], and photon echo measurements in inhomogeneously broadened media [25,26]. While most of these SPC implementations have focused on GVD compensation, the potential for compensating the higher-order dispersive and nonli ...
... nonlinear media [20,21], cross-phase modulation [22,23], two-photon absorption [24], and photon echo measurements in inhomogeneously broadened media [25,26]. While most of these SPC implementations have focused on GVD compensation, the potential for compensating the higher-order dispersive and nonli ...
Telescopes and spectrographs
... instrument movable. It is clear from Figure 3 that the physical length of a Keplerian refracting telescope cannot be less than fo. Hence, it would hardly be realistic to plan a telescope with a focal length of 100 metres using this design! However, it is important to remember that achieving high mag ...
... instrument movable. It is clear from Figure 3 that the physical length of a Keplerian refracting telescope cannot be less than fo. Hence, it would hardly be realistic to plan a telescope with a focal length of 100 metres using this design! However, it is important to remember that achieving high mag ...
Assessing the Contributions of Surface Waves and Complex Rays to
... terms of the Mie infinite series. It turns out that writing each term of the Mie infinite series as another infinite series, known as the Debye series, clarifies the physical origins of many effects that occur in electromagnetic scattering.4 -9 In ray theory, when a geometrical light ray is incident ...
... terms of the Mie infinite series. It turns out that writing each term of the Mie infinite series as another infinite series, known as the Debye series, clarifies the physical origins of many effects that occur in electromagnetic scattering.4 -9 In ray theory, when a geometrical light ray is incident ...
High-Repetition TDS System
... allows for the generation of stable ultrashort optical pulses impervious to mechanical vibration and provides for tunable wavelength and repetition rate, which is a difficult task in conventional fiber lasers. Given these characteristics, this method is expected to enable the construction of a stabl ...
... allows for the generation of stable ultrashort optical pulses impervious to mechanical vibration and provides for tunable wavelength and repetition rate, which is a difficult task in conventional fiber lasers. Given these characteristics, this method is expected to enable the construction of a stabl ...
