Refractometry of microscopic objects using digital holography
... interesting alternative to conventional microscopy. In this paper, it is shown that DH also is useful in refractometry of microscopic objects. Measurements of the index of refraction of small inhomogeneous object such as crystals are made with methods such as the Becke line method, the phase contras ...
... interesting alternative to conventional microscopy. In this paper, it is shown that DH also is useful in refractometry of microscopic objects. Measurements of the index of refraction of small inhomogeneous object such as crystals are made with methods such as the Becke line method, the phase contras ...
31.3. Rear Projection - Contrast and Gain
... displays. As an example, shadow mask CRTs and LCDs that utilize spatial color synthesis techniques to create full color image are less efficient than monochrome displays. In a color CRT only about one-fifth of the electrons pass through the shadow mask and become available for visible light creation ...
... displays. As an example, shadow mask CRTs and LCDs that utilize spatial color synthesis techniques to create full color image are less efficient than monochrome displays. In a color CRT only about one-fifth of the electrons pass through the shadow mask and become available for visible light creation ...
Document
... 2. A step-index single-mode fiber for transmitting a signal at λ = 1.35 μm is 100 km long. At this wavelength, the fiber has the following parameters for its silica cladding: n2 = 1.446, N2 = 1.466, and D2 = −0.0027. Its core has a radius of a = 4 μm and an index of n1 = 1.450. What are the propagat ...
... 2. A step-index single-mode fiber for transmitting a signal at λ = 1.35 μm is 100 km long. At this wavelength, the fiber has the following parameters for its silica cladding: n2 = 1.446, N2 = 1.466, and D2 = −0.0027. Its core has a radius of a = 4 μm and an index of n1 = 1.450. What are the propagat ...
modeling the thermal absorption factor of photovoltaic/thermal combi
... sub-fluxes (q ia1 ,q ia2 ,q ia3 ), as illustrated in figure 4. For a given incident sub-flux each exiting subflux can be found by integrating I(ϕ,θ) over the corresponding part of the hemisphere. Details will not be given here. What is important is that just as in the specular case, all sub-fluxes a ...
... sub-fluxes (q ia1 ,q ia2 ,q ia3 ), as illustrated in figure 4. For a given incident sub-flux each exiting subflux can be found by integrating I(ϕ,θ) over the corresponding part of the hemisphere. Details will not be given here. What is important is that just as in the specular case, all sub-fluxes a ...
Characterisation of the Tunable Laser Source
... Optical spectrum analyser Optical spectrum analysers (OSA) can divide a lightwave signal into its constituent wavelengths. This means that it is possible to see the spectral profile of the signal over a certain wavelength range. The profile is graphically displayed, with wavelength on the horizontal ...
... Optical spectrum analyser Optical spectrum analysers (OSA) can divide a lightwave signal into its constituent wavelengths. This means that it is possible to see the spectral profile of the signal over a certain wavelength range. The profile is graphically displayed, with wavelength on the horizontal ...
Lens equation for flat lenses made with hyperbolic
... propagating waves carrying subwavelength details. The conjugate points for such a lens are however located right on the interfaces of the structure, which leads to place both object and image at the vicinity of the hyperbolic lens interfaces. This is also required to obtain subwavelength resolved im ...
... propagating waves carrying subwavelength details. The conjugate points for such a lens are however located right on the interfaces of the structure, which leads to place both object and image at the vicinity of the hyperbolic lens interfaces. This is also required to obtain subwavelength resolved im ...
Questacon Wonderworks Teacher Notes
... Momentum is a property of moving objects, it is conserved in a closed system and may be transferred from one object to another when a force acts over a time interval Waves are periodic oscillations that transfer energy from one point to another Longitudinal and transverse waves are distinguished by ...
... Momentum is a property of moving objects, it is conserved in a closed system and may be transferred from one object to another when a force acts over a time interval Waves are periodic oscillations that transfer energy from one point to another Longitudinal and transverse waves are distinguished by ...
Isolated hexaphenyl nanofibers as optical waveguides
... The ongoing rapid microminiaturization of optoelectronics has led to an increased need for the generation, characterization and interconnection of optoelectronic elements with characteristic dimensions in the submicrometer length scale regime. For this, organic materials with delocalized electrons ...
... The ongoing rapid microminiaturization of optoelectronics has led to an increased need for the generation, characterization and interconnection of optoelectronic elements with characteristic dimensions in the submicrometer length scale regime. For this, organic materials with delocalized electrons ...
RA19 - Laser Lift-Off Techniques
... Laser Lift-Off Techniques The term ‘Lift-Off’ has been applied to a wide variety of processes where layers are removed or transferred by interaction at the substrate/layer interface. In some cases that interaction involves a laser; an early example was the transfer of thin metallic films from one su ...
... Laser Lift-Off Techniques The term ‘Lift-Off’ has been applied to a wide variety of processes where layers are removed or transferred by interaction at the substrate/layer interface. In some cases that interaction involves a laser; an early example was the transfer of thin metallic films from one su ...
Large-Area Laser-Lift-Off Processing in
... Laser processing is a key technology in driving new developments in microelectronics. Owing to the fact that laser radiation is locally and flexibly applicable as well as a non-contact type of interaction, laser processes are particularly suited for manufacturing thin microelectronic components. For ...
... Laser processing is a key technology in driving new developments in microelectronics. Owing to the fact that laser radiation is locally and flexibly applicable as well as a non-contact type of interaction, laser processes are particularly suited for manufacturing thin microelectronic components. For ...
Properties of Radiation What`s this?
... • In addition to Earth’s orbit, the power output from the Sun also varies over time (e.g., sunspot cycles) • Furthermore, radiation is not uniformly incident on the surface but varies with incidence angle of the Sun ...
... • In addition to Earth’s orbit, the power output from the Sun also varies over time (e.g., sunspot cycles) • Furthermore, radiation is not uniformly incident on the surface but varies with incidence angle of the Sun ...
optical fibre communication
... Light changes its speed when it travels from one material to another, such as from air into glass. This cause an effect called refraction. Hence bending of the light at the surface of a material is expected. The speed of the light in the vacuum is highest. ...
... Light changes its speed when it travels from one material to another, such as from air into glass. This cause an effect called refraction. Hence bending of the light at the surface of a material is expected. The speed of the light in the vacuum is highest. ...
Opto-acoustic Imaging
... An important feature of laser techniques for the measurement of ultrasonic surface displacement is that no contact is required and thus a change in measurement position on the surface may be made very quickly by simply moving the laser beam. Combined with the high resolution obtainable from the lase ...
... An important feature of laser techniques for the measurement of ultrasonic surface displacement is that no contact is required and thus a change in measurement position on the surface may be made very quickly by simply moving the laser beam. Combined with the high resolution obtainable from the lase ...
Polarization Optics Tutorial: Polarizers, Waveplates, Rotators, and
... The transmission of polarized light through birefringent materials, while done at the speed of light by Nature, is rather more tedious for mortals to explain. Accordingly we will limit this discussion to crystal quartz in the case of normal incidence and the optic axis in the surface plane. For a co ...
... The transmission of polarized light through birefringent materials, while done at the speed of light by Nature, is rather more tedious for mortals to explain. Accordingly we will limit this discussion to crystal quartz in the case of normal incidence and the optic axis in the surface plane. For a co ...
Pockels effect
... with rising electric field (applied Voltage) the transmitted light goes through • elliptical polarization • circular polarization @ V/2 (U /2) • elliptical polarization (90°) • linear polarization ...
... with rising electric field (applied Voltage) the transmitted light goes through • elliptical polarization • circular polarization @ V/2 (U /2) • elliptical polarization (90°) • linear polarization ...
Convolution in Imaging and the Optical Transfer Function Process
... What exactly is the modulation transfer function? How does it help us analyze the quality of an optical system? Well, we’ll first by looking at a very important concept, the Optical Transfer Function (OTF). The OTF of an optical system describes how the components of the system project light from an ...
... What exactly is the modulation transfer function? How does it help us analyze the quality of an optical system? Well, we’ll first by looking at a very important concept, the Optical Transfer Function (OTF). The OTF of an optical system describes how the components of the system project light from an ...
Chapter Notes
... rays will intersect at the focal point, F. The focal point of a convex mirror is behind the mirror. -Examples of this are surveillance mirrors, safety mirrors on busses and disco balls. Steps to producing an image in a convex mirror Step 1: Draw an incident ray parallel to the principal axis, the re ...
... rays will intersect at the focal point, F. The focal point of a convex mirror is behind the mirror. -Examples of this are surveillance mirrors, safety mirrors on busses and disco balls. Steps to producing an image in a convex mirror Step 1: Draw an incident ray parallel to the principal axis, the re ...
485-146 - Wseas.us
... average refractive index n0 of the homogeneous grating transforms into n0 + n/2 for the first half of the grating and n0 - n/2 for the second half (where n = /(2l) is the refractive index shift, l is the grating length, and is the Bragg wavelength) the spectral transfer function is also modifi ...
... average refractive index n0 of the homogeneous grating transforms into n0 + n/2 for the first half of the grating and n0 - n/2 for the second half (where n = /(2l) is the refractive index shift, l is the grating length, and is the Bragg wavelength) the spectral transfer function is also modifi ...
here - Gonit Sora
... •μ>0, Є<0, being materials not well investigated. •μ<0, Є>0, also being materials not well investigated •μ<0, Є<0, where these materials do not exist naturally(Metamaterials) ...
... •μ>0, Є<0, being materials not well investigated. •μ<0, Є>0, also being materials not well investigated •μ<0, Є<0, where these materials do not exist naturally(Metamaterials) ...
Development of Mirror Coatings for Gravitational Wave Detectors
... temperature dependent and, thus, cooling does not always result in a reduction in thermal noise. In particular, the mirror substrates of current detectors are made from fused silica. This material is not suitable for use at low temperature as the mechanical loss increases by approximately five order ...
... temperature dependent and, thus, cooling does not always result in a reduction in thermal noise. In particular, the mirror substrates of current detectors are made from fused silica. This material is not suitable for use at low temperature as the mechanical loss increases by approximately five order ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.