OFC - GEOCITIES.ws
... core-cladding boundary. Light travels along a single path i.e. along the axis. This fibre has low value of NA and Intermodal dispersion does not exist (only one mode exist). With careful choice of material, dimension and wavelength dispersion can be made extremely small. Low dispersion makes it su ...
... core-cladding boundary. Light travels along a single path i.e. along the axis. This fibre has low value of NA and Intermodal dispersion does not exist (only one mode exist). With careful choice of material, dimension and wavelength dispersion can be made extremely small. Low dispersion makes it su ...
Chapter 2 Femtosecond Laser Pulses - diss.fu
... not only the initial pulse duration and quality, but it has to compensate the dispersion introduced in the amplification stage itself. To overcome this problem, the distance between gratings in the compressor has to be larger than in the stretcher. This will cancel overall second-order dispersion an ...
... not only the initial pulse duration and quality, but it has to compensate the dispersion introduced in the amplification stage itself. To overcome this problem, the distance between gratings in the compressor has to be larger than in the stretcher. This will cancel overall second-order dispersion an ...
Intermittent measurement
... An interesting overview about the history of optical monitoring we can extract from Angus Mac Leod’s article “Evolution of the measurement of Thin Films” 1. In the 18th century, Isaac Newton studied the colours of light reflected from thin films. He found the relation between the thicknesses of thin ...
... An interesting overview about the history of optical monitoring we can extract from Angus Mac Leod’s article “Evolution of the measurement of Thin Films” 1. In the 18th century, Isaac Newton studied the colours of light reflected from thin films. He found the relation between the thicknesses of thin ...
Everything You Always Wanted to Know About Optical
... • Running DWDM over DSF causes non-linear interactions. • The notable example is called Four Wave Mixing • 3 equally spaced wavelengths interact to produce a 4th wavelength. ...
... • Running DWDM over DSF causes non-linear interactions. • The notable example is called Four Wave Mixing • 3 equally spaced wavelengths interact to produce a 4th wavelength. ...
New method for estimating the refractive index of optical materials in
... out in [5] were used. Using the proposed methods, it was calculated the indicatrix of scattering of the optical elements with different refractive indices. In particular, the scattering function calculations were carried out for the refractive index close to 1.46 (fused silica, SiO2). Fig. 1 shows t ...
... out in [5] were used. Using the proposed methods, it was calculated the indicatrix of scattering of the optical elements with different refractive indices. In particular, the scattering function calculations were carried out for the refractive index close to 1.46 (fused silica, SiO2). Fig. 1 shows t ...
DIOPTRICS OF THE FACET LENSES OF MALE BLOWFLIES
... the average refractive index at the axis and at the edge of the lens, as well as its dispersion. Here we present measurements on facet lenses over a wide range o f diameter values. We determined the radius o f curvature of the front surface as well as the optical path profile as a function of the di ...
... the average refractive index at the axis and at the edge of the lens, as well as its dispersion. Here we present measurements on facet lenses over a wide range o f diameter values. We determined the radius o f curvature of the front surface as well as the optical path profile as a function of the di ...
Unit 1.6 Optical Switching - DIT School of Electronics and
... The operation of acousto-optic switches is based on the acousto-optic effect, i.e., the interaction between sound and light. The principle of operation of a polarization-insensitive acousto-optic switch is as follows. First, the input signal is split into its two polarized components (TE and TM) by ...
... The operation of acousto-optic switches is based on the acousto-optic effect, i.e., the interaction between sound and light. The principle of operation of a polarization-insensitive acousto-optic switch is as follows. First, the input signal is split into its two polarized components (TE and TM) by ...
Processing of Graphene combining Optical Detection and Scanning
... areas have been further analysed using AFM imaging as indicated. ...
... areas have been further analysed using AFM imaging as indicated. ...
EXPERIMENT 06 Helium Neon Laser
... below the 3s level of the neon. However, the additional thermal energy kT is sufficient to overcome this gap. As already mentioned, the lifetime of the s-states of the neon are approximately 10 times longer as those of the pstates. An immediate population inversion between the 3s and the 2p levels w ...
... below the 3s level of the neon. However, the additional thermal energy kT is sufficient to overcome this gap. As already mentioned, the lifetime of the s-states of the neon are approximately 10 times longer as those of the pstates. An immediate population inversion between the 3s and the 2p levels w ...
Fluorescence assay for monitoring Zn
... on the basis of a gained function for SOD1 since one need only up-regulate the biosynthesis of other zinc binding proteins to out-compete apo wildtype SOD1 for zinc and result in formation zincdeficient wild-type enzyme. Evidence of a role for NO and peroxynitrite in ALS exists in the form of increa ...
... on the basis of a gained function for SOD1 since one need only up-regulate the biosynthesis of other zinc binding proteins to out-compete apo wildtype SOD1 for zinc and result in formation zincdeficient wild-type enzyme. Evidence of a role for NO and peroxynitrite in ALS exists in the form of increa ...
High frequency characterization of the Gsanger LM0202P eletro-optic [i.e. electro-optic] modulator
... between amplitude and frequency modulation) should occur ...
... between amplitude and frequency modulation) should occur ...
The mechanics of adhesion polymers and their
... always be taken to avoid a high absorption of the laser light, which can damage the cell as reported in several studies [29–32]. The trap itself is usually formed using a high numerical aperture (NA) microscope objective and the setup is usually built around an inverted microscope [33, 34]. This mak ...
... always be taken to avoid a high absorption of the laser light, which can damage the cell as reported in several studies [29–32]. The trap itself is usually formed using a high numerical aperture (NA) microscope objective and the setup is usually built around an inverted microscope [33, 34]. This mak ...
Holography
... In-line Hologram (Gabor) The technique of straightforward holography developed by Gabor places the light source and the object on the axis perpendicular to the holographic layer. Only transparent objects can be considered. If an axial point O is chosen as an object emitting a spherical wave the res ...
... In-line Hologram (Gabor) The technique of straightforward holography developed by Gabor places the light source and the object on the axis perpendicular to the holographic layer. Only transparent objects can be considered. If an axial point O is chosen as an object emitting a spherical wave the res ...
The Balance Detector
... In order to interpret the meaning of a non-zero reading on a balance detector, the sensitivity of that balance detector must be known. The sensitivity is the proportionality constant that relates the intensity difference of the laser beams to the output voltage. The sensitivity has units of V/µW. Th ...
... In order to interpret the meaning of a non-zero reading on a balance detector, the sensitivity of that balance detector must be known. The sensitivity is the proportionality constant that relates the intensity difference of the laser beams to the output voltage. The sensitivity has units of V/µW. Th ...
Absorption Measurements in Microfluidic Devices using Ring-down Spectroscopy
... due to its very high sensitivity and fast response. However, since many analytes are not naturally fluorescent, labelling protocols may have to be introduced and thereby increase the complexity of the analysis. Here, we present an alternative method that is based on optical absorption, or more speci ...
... due to its very high sensitivity and fast response. However, since many analytes are not naturally fluorescent, labelling protocols may have to be introduced and thereby increase the complexity of the analysis. Here, we present an alternative method that is based on optical absorption, or more speci ...
Optical Resonators and Mode Matching
... interferometer. Optical resonator along with optical gain are the basic elements of every laser, optical resonators are used in sensors such as the laser gyroscope, and they are used extensively in optical precision measurements, to name merely a few applications. Indeed the optical resonator plays ...
... interferometer. Optical resonator along with optical gain are the basic elements of every laser, optical resonators are used in sensors such as the laser gyroscope, and they are used extensively in optical precision measurements, to name merely a few applications. Indeed the optical resonator plays ...
Total Internal Reflection Spectroscopy for Studying Soft Matter
... be delivered to the sample simultaneously) and can be difficult to interpret. Furthermore, molecules at an interface that do not have a preferred orientation are invisible in second-order nonlinear spectroscopy, so such techniques are of limited value for quantitative analysis of composition. The se ...
... be delivered to the sample simultaneously) and can be difficult to interpret. Furthermore, molecules at an interface that do not have a preferred orientation are invisible in second-order nonlinear spectroscopy, so such techniques are of limited value for quantitative analysis of composition. The se ...
3.4-?m ZGP RISTRA nanosecond - AS
... ~109 mm NF can exceed several hundred for visible to near-IR wavelengths and pump beam diameters of 6 – 8 mm. For non-image-rotating ns OPOs NF ≥ 100 is usually a recipe for very poor beam quality, however the RISTRA can deliver good beam quality for NF ≥ 400 [12, 13], and it has generated a 1550-nm ...
... ~109 mm NF can exceed several hundred for visible to near-IR wavelengths and pump beam diameters of 6 – 8 mm. For non-image-rotating ns OPOs NF ≥ 100 is usually a recipe for very poor beam quality, however the RISTRA can deliver good beam quality for NF ≥ 400 [12, 13], and it has generated a 1550-nm ...
Intensity Interferometry toward high resolution
... The Cherenkov Telescope Array (CTA) is a new upcoming facility that will detect rapid flashes of optical Cherenkov light induced by extraterrestrial gamma-rays. Its large telescopes could very well be used part-time for intensity interferometry. With its 2 km maximum baseline, it could image surface ...
... The Cherenkov Telescope Array (CTA) is a new upcoming facility that will detect rapid flashes of optical Cherenkov light induced by extraterrestrial gamma-rays. Its large telescopes could very well be used part-time for intensity interferometry. With its 2 km maximum baseline, it could image surface ...
D12 in docx
... electron-beam lithography plus stacking of several layers on the one hand (KIT and Bilkent) and inherently three-dimensional direct-laser-writing (DLW) optical lithography on the other hand (KIT). The previous status has been reported on in D10, which shall not be repeated here. Meanwhile it has bec ...
... electron-beam lithography plus stacking of several layers on the one hand (KIT and Bilkent) and inherently three-dimensional direct-laser-writing (DLW) optical lithography on the other hand (KIT). The previous status has been reported on in D10, which shall not be repeated here. Meanwhile it has bec ...
Clutter elimination for deep clinical optoacoustic imaging using
... significantly be reduced [21], it still has some inherent disadvantages: First, it can only be employed for easily deformable tissue such as the breast and the limb muscles, and it requires considerable practice for controlled probe motion if it is to achieve optimum results. Second, and more importa ...
... significantly be reduced [21], it still has some inherent disadvantages: First, it can only be employed for easily deformable tissue such as the breast and the limb muscles, and it requires considerable practice for controlled probe motion if it is to achieve optimum results. Second, and more importa ...
1 Introduction - Stony Brook Laser Teaching Center
... In the new design described here, the strong astigmatism created by the single cylinder lens is exactly balanced by an astigmatism created by tilting the usual spherical mode-matching lens away from its normal position perpendicular to the beam direction. The discovery of this possibility followed f ...
... In the new design described here, the strong astigmatism created by the single cylinder lens is exactly balanced by an astigmatism created by tilting the usual spherical mode-matching lens away from its normal position perpendicular to the beam direction. The discovery of this possibility followed f ...
Construction of a Fermi Gas Microscope for Fermionic Atoms
... This thesis reports the construction of a novel apparatus for experiments with ultracold atoms in optical lattices: the Fermi gas microscope. Improving upon similar designs for bosonic atoms, our Fermi gas microscope has the novel feature of being able to achieve single-site resolved imaging of ferm ...
... This thesis reports the construction of a novel apparatus for experiments with ultracold atoms in optical lattices: the Fermi gas microscope. Improving upon similar designs for bosonic atoms, our Fermi gas microscope has the novel feature of being able to achieve single-site resolved imaging of ferm ...
Optical Components and Devices for Next-Generation
... complex, three-dimensional structure while maintaining its precise alignment. To this end, we proposed a folded optical switch fabric configuration with a roof type retro-reflector (Figure 2).2) Mechanical resonance is inevitable in MEMS mirrors, and it must be strongly suppressed in optical switche ...
... complex, three-dimensional structure while maintaining its precise alignment. To this end, we proposed a folded optical switch fabric configuration with a roof type retro-reflector (Figure 2).2) Mechanical resonance is inevitable in MEMS mirrors, and it must be strongly suppressed in optical switche ...
Confocal microscopy
Confocal microscopy is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of adding a spatial pinhole placed at the confocal plane of the lens to eliminate out-of-focus light. It enables the reconstruction of three-dimensional structures from the obtained images. This technique has gained popularity in the scientific and industrial communities and typical applications are in life sciences, semiconductor inspection and materials science.