Window strength and environments
... Relevant choices on the optical material (involving index of refraction, Young’s modulus, Poisson ratio, yield strength) used to make the window, as well as on the dimensions (thickness and diameter) and shape (curvature for domes) of the window must be made in correlation with the environmental con ...
... Relevant choices on the optical material (involving index of refraction, Young’s modulus, Poisson ratio, yield strength) used to make the window, as well as on the dimensions (thickness and diameter) and shape (curvature for domes) of the window must be made in correlation with the environmental con ...
here - Optoelectronics Research Centre
... uses light instead of acoustic vibration to create the image. The term A-scan and Bscan are used commonly in OCT and ultrasonography because of the similarities in the way both techniques are constructing their images or tomograms. An A-scan is a one dimensional, axial profile obtained at a point lo ...
... uses light instead of acoustic vibration to create the image. The term A-scan and Bscan are used commonly in OCT and ultrasonography because of the similarities in the way both techniques are constructing their images or tomograms. An A-scan is a one dimensional, axial profile obtained at a point lo ...
Effect of pores on transmission properties of transparent ceramics
... The pores are nanosized in the nano-ceramics, and the light scattering by pores decrease. It is thought that the effect of pores is only limited in nano-ceramics because the pore sizes are smaller than 100 nm [14-15], and some research has expanded the possibility nano-ceramics of developing with po ...
... The pores are nanosized in the nano-ceramics, and the light scattering by pores decrease. It is thought that the effect of pores is only limited in nano-ceramics because the pore sizes are smaller than 100 nm [14-15], and some research has expanded the possibility nano-ceramics of developing with po ...
Super-resolution Microscopy
... microscopy techniques were able to enhance the resolution only along the axial direction compared to the conventional techniques. The lateral resolution remains unchanged. Changing the PSF is not the only way to enhance the resolution. Fluorescence microscopy has another dimension, called color. Ima ...
... microscopy techniques were able to enhance the resolution only along the axial direction compared to the conventional techniques. The lateral resolution remains unchanged. Changing the PSF is not the only way to enhance the resolution. Fluorescence microscopy has another dimension, called color. Ima ...
Pulse Delay Chromatic Dispersion Measurements in Single Mode
... in the telecommunication industry but it is also an important component in the field of medicine, where it is used in laparoscopic surgery and also in laser surgery. Other uses such as the transmitting of high power laser beams and fibre optic sensors also rely on optical fibre. However nonlinear ef ...
... in the telecommunication industry but it is also an important component in the field of medicine, where it is used in laparoscopic surgery and also in laser surgery. Other uses such as the transmitting of high power laser beams and fibre optic sensors also rely on optical fibre. However nonlinear ef ...
0 - Newport
... After routing the beams to the entrance ports of the balance detector (D) using mirrors M8 and M9, respectively, a co-axial cable is connected from the differential output of the balance detector to an oscilloscope. At this point, the balance detector should indicate null response since the intensit ...
... After routing the beams to the entrance ports of the balance detector (D) using mirrors M8 and M9, respectively, a co-axial cable is connected from the differential output of the balance detector to an oscilloscope. At this point, the balance detector should indicate null response since the intensit ...
IEEE J. Quant. Electron. 24, 431 - Department of Physics
... quent modifications [2], was the only available source of the extracted ultraviolet beam. Intracavity frequency douoptical pulses less than 100 fs in duration. Recently sev- bling has been applied previously to synchronously modeeral investigators [3]-[8] have developed new femtosec- locked picoseco ...
... quent modifications [2], was the only available source of the extracted ultraviolet beam. Intracavity frequency douoptical pulses less than 100 fs in duration. Recently sev- bling has been applied previously to synchronously modeeral investigators [3]-[8] have developed new femtosec- locked picoseco ...
this PDF file - Canadian Center of Science and Education
... and eliminate effects of interference between multiple reflections in the incoherent thick substrate via averaging the -integral over random phase angles δ . This job is arduous, but for such a {semi-infinite layer 1/thin layer 2/thick layer 3/semi-infinite layer 4}-stack, one can adopt more irresis ...
... and eliminate effects of interference between multiple reflections in the incoherent thick substrate via averaging the -integral over random phase angles δ . This job is arduous, but for such a {semi-infinite layer 1/thin layer 2/thick layer 3/semi-infinite layer 4}-stack, one can adopt more irresis ...
Fresnel Equations. In Encyclopedia of Optical Engineering
... behavior of light at optical surfaces, they are relevant to virtually all fields of optical design: lens design, imaging, lasers, optical communication, spectroscopy, and holography. Good understanding of the principles behind Fresnel equations is necessary in designing optical coatings and Fabry-Pe ...
... behavior of light at optical surfaces, they are relevant to virtually all fields of optical design: lens design, imaging, lasers, optical communication, spectroscopy, and holography. Good understanding of the principles behind Fresnel equations is necessary in designing optical coatings and Fabry-Pe ...
Defect-based Photonic Crystal Cavity for Silicon Laser PHYC/ECE 568
... hindered such an integration because of inefficient radiative recombination of carriers in silicon due to its indirect bandgap. Previously, there has been efforts to provide optical gain nitride-rich silicon, Si/Ge and Si/SiO2 superlattices, but none of those approaches have been succesful to date. ...
... hindered such an integration because of inefficient radiative recombination of carriers in silicon due to its indirect bandgap. Previously, there has been efforts to provide optical gain nitride-rich silicon, Si/Ge and Si/SiO2 superlattices, but none of those approaches have been succesful to date. ...
Nonlinear effects in Silicon Waveguides
... • Experimental data in agreement with numerical predictions. ...
... • Experimental data in agreement with numerical predictions. ...
Compact Adaptive Optics Line Scanning Ophthalmoscope
... a variety of diseases and conditions [28-30]. AO is also being applied to advanced molecular and gene therapies, both in their development and as the primary method to determine treatment efficacy at the cellular level. AO systems use a wave-front sensor to sense ocular aberrations that arise primar ...
... a variety of diseases and conditions [28-30]. AO is also being applied to advanced molecular and gene therapies, both in their development and as the primary method to determine treatment efficacy at the cellular level. AO systems use a wave-front sensor to sense ocular aberrations that arise primar ...
Different Types of Dispersions in an Optical Fiber
... Graded index fibers have core diameter of 50, 62.5 or 85 m and a cladding diameter of 125 m. The fiber is used in applications requiring a wide bandwidth and low model dispersion. The number of modes in the fiber is about half that of step index fiber having the same diameter. Single mode step ind ...
... Graded index fibers have core diameter of 50, 62.5 or 85 m and a cladding diameter of 125 m. The fiber is used in applications requiring a wide bandwidth and low model dispersion. The number of modes in the fiber is about half that of step index fiber having the same diameter. Single mode step ind ...
Frequency splitter based on the directional
... Subwavelength guiding and manipulating light is a challenge that attracts much of the scientific effort, paving the way towards the minimization of electromagnetic components. Photonic Crystals (PC) and metallic structures, that in the optical regime support the propagation of Surface Plasmons Polar ...
... Subwavelength guiding and manipulating light is a challenge that attracts much of the scientific effort, paving the way towards the minimization of electromagnetic components. Photonic Crystals (PC) and metallic structures, that in the optical regime support the propagation of Surface Plasmons Polar ...
Optical Distinctions Between Weyl Semimetal TaAs and Dirac
... carriers (Drude peak).36,37 The inter-band transitions part grows linearly with frequency (energy)38 while the Drude peak decreases as the temperature is reduced.39,40 These behaviors have been observed in TaAs by measuring optical conductivity at different temperatures.40 In this article, we focus ...
... carriers (Drude peak).36,37 The inter-band transitions part grows linearly with frequency (energy)38 while the Drude peak decreases as the temperature is reduced.39,40 These behaviors have been observed in TaAs by measuring optical conductivity at different temperatures.40 In this article, we focus ...
Ionization of Rydberg atoms by standing
... Any motion of the atoms in the lattice or variations in their initial positions away from the intensity maxima or minima will further reduce the experimentally observed ratio. Comparing the simulation results for the two models of photoionization to the measurement results in Fig. 2d, we observe goo ...
... Any motion of the atoms in the lattice or variations in their initial positions away from the intensity maxima or minima will further reduce the experimentally observed ratio. Comparing the simulation results for the two models of photoionization to the measurement results in Fig. 2d, we observe goo ...
Optical Metrology vs SEM. Range, Accuracy, Repeatability
... measurements. Determining the offset is accomplished by measuring one or more lines that have been measured by the SEM whose sizing is trying to be duplicated. The offset also is calculable from the wavelength and NA. We have compared Flux-Area measurements to standard optical edge-to-edge measureme ...
... measurements. Determining the offset is accomplished by measuring one or more lines that have been measured by the SEM whose sizing is trying to be duplicated. The offset also is calculable from the wavelength and NA. We have compared Flux-Area measurements to standard optical edge-to-edge measureme ...
Quadriwave lateral shearing interferometry
... measurement of the optical path length distribution that allows living cells to be described with a diffraction-limited transverse resolution and a sub-wavelength axial accuracy [9]. More recently, this method was applied to perform optical diffraction tomography of a pollen grain [10], and tomograp ...
... measurement of the optical path length distribution that allows living cells to be described with a diffraction-limited transverse resolution and a sub-wavelength axial accuracy [9]. More recently, this method was applied to perform optical diffraction tomography of a pollen grain [10], and tomograp ...
Bessel beams: diffraction in a new light
... concentric rings. Mathematically the Bessel beam can contain an infinite number of rings, and so over an infinite area would carry infinite power. So the conclusion must be that we cannot make a Bessel beam. What Durnin and coworkers went on to show [3] was that one could make an approximation to a Bes ...
... concentric rings. Mathematically the Bessel beam can contain an infinite number of rings, and so over an infinite area would carry infinite power. So the conclusion must be that we cannot make a Bessel beam. What Durnin and coworkers went on to show [3] was that one could make an approximation to a Bes ...
Design of Refractive Index Profile for Multimode Optical Fibers with
... order guided mode parameters, propagating along weakly guiding optical fibers with an arbitrary axial-symmetric refractive index profiles [15]. This method is based on stratification and Gaussian approximation methods, and it permits to decrease the computing time much, especially for the higher-ord ...
... order guided mode parameters, propagating along weakly guiding optical fibers with an arbitrary axial-symmetric refractive index profiles [15]. This method is based on stratification and Gaussian approximation methods, and it permits to decrease the computing time much, especially for the higher-ord ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.