Optical Fibers and Waveguides
... waveguide. The thickness of the guiding layer needs to be quite small to accomplish this. For example: at an operating wavelength of 1.55 µm and indices n1 = 1.5, n2 = 1.485 the maximum guide width that will support single-mode operation is 3.66 µm. Such waveguides are important because, in a simple ...
... waveguide. The thickness of the guiding layer needs to be quite small to accomplish this. For example: at an operating wavelength of 1.55 µm and indices n1 = 1.5, n2 = 1.485 the maximum guide width that will support single-mode operation is 3.66 µm. Such waveguides are important because, in a simple ...
An ultrasmall wavelength-selective channel drop switch
... photonic bandgap changes because of the existence of the slotted mode. Also this waveguide is no longer single-mode. The band structure is also altered by a change in the gap, so we need to consider carefully the slotted mode in the design. At a large gap, the light wave propagates in the PC wavegui ...
... photonic bandgap changes because of the existence of the slotted mode. Also this waveguide is no longer single-mode. The band structure is also altered by a change in the gap, so we need to consider carefully the slotted mode in the design. At a large gap, the light wave propagates in the PC wavegui ...
measuring wavelength discrimination threshold along the entire
... that our equipment should compensate the relative luminance changes through the visible spectrum. There are two different possibilities to solve this problem. The first possibility is to apply an additive unit to compensate the luminosity, which can be adjusted by the observer. The second one is to ...
... that our equipment should compensate the relative luminance changes through the visible spectrum. There are two different possibilities to solve this problem. The first possibility is to apply an additive unit to compensate the luminosity, which can be adjusted by the observer. The second one is to ...
Passive Light and Viewpoint Sensitive Display of 3D Content
... Table 1: A summary of strategies for reducing the dimensionality of passive light-sensitive displays. An entry marked by“ ·” indicates that this dimension is assumed uniform or that the output is invariant to it. An entry with superscript o implies that its value is fixed and known when content is d ...
... Table 1: A summary of strategies for reducing the dimensionality of passive light-sensitive displays. An entry marked by“ ·” indicates that this dimension is assumed uniform or that the output is invariant to it. An entry with superscript o implies that its value is fixed and known when content is d ...
A compact laser head with high-frequency stability for Rb atomic
... previously reported by Ye et al. for diode laser stabilization to Rb saturated absorption resonances, which however used a significantly larger and more sophisticated setup.30 In order to evaluate the sources of limitations to the frequency stability measured at medium-term integration times around ...
... previously reported by Ye et al. for diode laser stabilization to Rb saturated absorption resonances, which however used a significantly larger and more sophisticated setup.30 In order to evaluate the sources of limitations to the frequency stability measured at medium-term integration times around ...
Accepted version - Queen Mary University of London
... particles without special requirement of the shape and/or material composition of particles. Optical vortex is a typical beam that possesses OAM4, 23. Compared with laser beam being focused directly to the particle, optical vortex with doughnutshaped intensity distribution leads to less instant hea ...
... particles without special requirement of the shape and/or material composition of particles. Optical vortex is a typical beam that possesses OAM4, 23. Compared with laser beam being focused directly to the particle, optical vortex with doughnutshaped intensity distribution leads to less instant hea ...
Ultrafast Lasers Based on Quantum Dot Structures
... prospects for direct electrical control. The mode locking of semiconductor diode lasers (at present, mainly based on quantum well heterostructures) by active and passive modulation of cavity losses is an established technique for the generation of picosecond and high repetition rate optical pulses i ...
... prospects for direct electrical control. The mode locking of semiconductor diode lasers (at present, mainly based on quantum well heterostructures) by active and passive modulation of cavity losses is an established technique for the generation of picosecond and high repetition rate optical pulses i ...
Intense switchable fluorescence in light wave coupled electrowetting
... Switchable fluorescence has been obtained from light wave coupled (LWC) electrowetting (EW) devices fabricated on an optical waveguide substrate. The LWC device structure contains a polar water component and a nonpolar oil component that compete for placement on a hydrophobic surface under the influ ...
... Switchable fluorescence has been obtained from light wave coupled (LWC) electrowetting (EW) devices fabricated on an optical waveguide substrate. The LWC device structure contains a polar water component and a nonpolar oil component that compete for placement on a hydrophobic surface under the influ ...
Report - Physics - University of Arkansas
... commercially and for research due to their broad tunability, high stability, and significant potential output power. [1],[2] Additional research into Ti:sapphire has shown it to have a very short upper carrier lifetime, making it ideal for very high quality time-domain pulses. [3] Ti:Sapphire lasers ...
... commercially and for research due to their broad tunability, high stability, and significant potential output power. [1],[2] Additional research into Ti:sapphire has shown it to have a very short upper carrier lifetime, making it ideal for very high quality time-domain pulses. [3] Ti:Sapphire lasers ...
Electromagnetically induced transparency
... Two general detection protocols of optical biosensors 1. Fluorescence-based detection Intensity of the fluorescence: the number of target molecules Extremely sensitive, down to a single molecule detection (1) Suffers from laborious labeling processes, that may also interfere with the function of a ...
... Two general detection protocols of optical biosensors 1. Fluorescence-based detection Intensity of the fluorescence: the number of target molecules Extremely sensitive, down to a single molecule detection (1) Suffers from laborious labeling processes, that may also interfere with the function of a ...
Novel biosensor for detecting Hemoglobin and its oxidation state
... There has been a great deal of interest in sensing using the surface and guided modes of a stratified medium. Usually such sensors make use of the attenuated total reflection dip, which heralds the excitation of the surface/guided mode [13]. The angular or the spectral location of the dip is extreme ...
... There has been a great deal of interest in sensing using the surface and guided modes of a stratified medium. Usually such sensors make use of the attenuated total reflection dip, which heralds the excitation of the surface/guided mode [13]. The angular or the spectral location of the dip is extreme ...
Fabrication of Cube Beamsplitters for White Light Interferometry
... Roland Geyl, David Rimmer, Lingli Wang, Proceedings of SPIE Vol. 5252 (SPIE, Bellingham, WA, 2004) · 0277-786X/04/$15 · doi: 10.1117/12.513440 ...
... Roland Geyl, David Rimmer, Lingli Wang, Proceedings of SPIE Vol. 5252 (SPIE, Bellingham, WA, 2004) · 0277-786X/04/$15 · doi: 10.1117/12.513440 ...
Basic Principles and Applications of Holography
... 2. Use a two-channel transmission hologram. Project a real image onto a screen using a collimated beam of laser light (or a laser pointer). Move the laser beam around the hologram and show that each spot recreates a distinctly different view of the object. Thus, if the hologram were broken into piec ...
... 2. Use a two-channel transmission hologram. Project a real image onto a screen using a collimated beam of laser light (or a laser pointer). Move the laser beam around the hologram and show that each spot recreates a distinctly different view of the object. Thus, if the hologram were broken into piec ...
Noise-related resolution limit of dispersion measurements with white
... spectrally resolved interferometry are given in Section 6); however, a detailed comparison between spectrally resolved and spectrally integrated detection methods goes beyond the scope of this paper. Spectral resolution, the accuracy of GDD determination, and the measurement time are the key paramet ...
... spectrally resolved interferometry are given in Section 6); however, a detailed comparison between spectrally resolved and spectrally integrated detection methods goes beyond the scope of this paper. Spectral resolution, the accuracy of GDD determination, and the measurement time are the key paramet ...
Balmer_Prism2007
... source i.e. a very narrow slit. One uses the slits to vary the amount of light into the prism open the slit and more light. This is at a loss of effective chromatic resolving power but an increase in signal. The chromatic resolving power determined above is that in the limit as the slit width goes t ...
... source i.e. a very narrow slit. One uses the slits to vary the amount of light into the prism open the slit and more light. This is at a loss of effective chromatic resolving power but an increase in signal. The chromatic resolving power determined above is that in the limit as the slit width goes t ...
Effects of Spatial Coherence on the Angular Distribution of Radiant
... Sec. 4.3.2 of [14]). It is seen that the scattered field becomes less diffuse as the parameter increases. If the coherence length of the incident beam is comparable to or is larger than the radius of the sphere (i.e., when > a), secondary maxima occur. For ¼ 4a the radiant intensity can har ...
... Sec. 4.3.2 of [14]). It is seen that the scattered field becomes less diffuse as the parameter increases. If the coherence length of the incident beam is comparable to or is larger than the radius of the sphere (i.e., when > a), secondary maxima occur. For ¼ 4a the radiant intensity can har ...
Phase function
... medium and thus causes inhomogeneities of the R. I. – It can have either higher or lower frequencies because scattering particles are moving toward (or away from) the light source considered as an optical Doppler effect – This becomes important only during the generation of shock waves Léon Nic ...
... medium and thus causes inhomogeneities of the R. I. – It can have either higher or lower frequencies because scattering particles are moving toward (or away from) the light source considered as an optical Doppler effect – This becomes important only during the generation of shock waves Léon Nic ...
Application of Digital Phase-shift Shadow Moiré to Micro
... measurements. Moiré topography in particular is a widely used means for shape contouring of three-dimensional objects. In general Moiré topography can be classified into two main categories: projection Moiré and shadow Moiré, according to the optical arrangement used. In the case of a standard proje ...
... measurements. Moiré topography in particular is a widely used means for shape contouring of three-dimensional objects. In general Moiré topography can be classified into two main categories: projection Moiré and shadow Moiré, according to the optical arrangement used. In the case of a standard proje ...
LS1-60 luminance standard
... Care should be taken to prevent ambient light from reaching the viewing aperture when measuring very low luminance levels. ...
... Care should be taken to prevent ambient light from reaching the viewing aperture when measuring very low luminance levels. ...
EE - UAH Catalog
... Semester Hours: 3 Introduction to the geometrical design and analysis of optical systems, and to the design principles of lens systems. EE 534 - OPTICAL FIBER COMMUNICATIONS Semester Hours: 3 Introduction to optical fibers and their transmission characteristics, optical fiber measurements, sources a ...
... Semester Hours: 3 Introduction to the geometrical design and analysis of optical systems, and to the design principles of lens systems. EE 534 - OPTICAL FIBER COMMUNICATIONS Semester Hours: 3 Introduction to optical fibers and their transmission characteristics, optical fiber measurements, sources a ...