Nonlinear Optical Phenomena and Materials
... The primary application of nonlinear materials is the generation of new frequencies not available with existing laser sources. The variety of applications for nonlinear optical devices is so large that I will touch only the highlights here. Second harmonic generation (SHG) received early attention p ...
... The primary application of nonlinear materials is the generation of new frequencies not available with existing laser sources. The variety of applications for nonlinear optical devices is so large that I will touch only the highlights here. Second harmonic generation (SHG) received early attention p ...
Towards Multimaterial Multifunctional Fibres that See, Hear, Sense and Communicate
... of omnidirectional reflectivity17,18. Second, the materials should exhibit low optical absorption over a common wavelength band (such that the evanescent decay length is shorter than the absorption length). As glassy materials have a continuous viscosity–temperature dependence and thus lend themselv ...
... of omnidirectional reflectivity17,18. Second, the materials should exhibit low optical absorption over a common wavelength band (such that the evanescent decay length is shorter than the absorption length). As glassy materials have a continuous viscosity–temperature dependence and thus lend themselv ...
Effect of TiO2 on optical properties of glasses in the soda
... variations act mainly on the position of the resonance frequency. This aspect has led to an empirical understanding where optical refraction and optical dispersion (Abbe number) are roughly correlated, leading to the so-called banana-shape of the data distribution in the Abbe diagram [1]. Adding TiO ...
... variations act mainly on the position of the resonance frequency. This aspect has led to an empirical understanding where optical refraction and optical dispersion (Abbe number) are roughly correlated, leading to the so-called banana-shape of the data distribution in the Abbe diagram [1]. Adding TiO ...
Coating Materials - Umicore Thin Film Products
... The optimised performance (purity, structure, homogeneity, etc.) for each target, from target-to-target, and from lot-to-lot is very important for good sputter results. The critical elements that influence the absorption levels are Co, Cr, Cu, Fe, Mn, Ni, V, etc. Studies show a direct correlation be ...
... The optimised performance (purity, structure, homogeneity, etc.) for each target, from target-to-target, and from lot-to-lot is very important for good sputter results. The critical elements that influence the absorption levels are Co, Cr, Cu, Fe, Mn, Ni, V, etc. Studies show a direct correlation be ...
Thermal Lensing in a Nd:YAG Laser Rod
... Figure 2 shows the experimental setup for the measurement of the effective focal length with a He-Ne gas laser. The collimated output from the gas laser operated at 6328 A is passed through the YAG crystal, the beam waist is measured as a function of the distance from the second principal plane of t ...
... Figure 2 shows the experimental setup for the measurement of the effective focal length with a He-Ne gas laser. The collimated output from the gas laser operated at 6328 A is passed through the YAG crystal, the beam waist is measured as a function of the distance from the second principal plane of t ...
THz Materials
... penetrate into organic materials such as skin, plastics, cloth, or paper products. Because of low photon energy involved, it does not cause any damage associated with ionizing radiation (e.g. X-rays). THz waves do not penetrate into metals. These properties can be used in process (e.g. drugs manufac ...
... penetrate into organic materials such as skin, plastics, cloth, or paper products. Because of low photon energy involved, it does not cause any damage associated with ionizing radiation (e.g. X-rays). THz waves do not penetrate into metals. These properties can be used in process (e.g. drugs manufac ...
Title of Presentation
... or elements by an amount that compensates for thermal defocus By using two different materials with very different TCE arranged as either differential expansion cylinders or rods, it is possible to move the compensating element directly Rods or cylinders must be of sufficient length ...
... or elements by an amount that compensates for thermal defocus By using two different materials with very different TCE arranged as either differential expansion cylinders or rods, it is possible to move the compensating element directly Rods or cylinders must be of sufficient length ...
Material Properties - CVI Melles Griot 2009 Technical Guide, Vol 2
... The Schott Optical Glass catalog offers nearly 300 different optical glasses. For lens designers, the most important difference among these glasses is the index of refraction and dispersion (rate of change of index with wavelength). Typically, an optical glass is specified by its index of refraction ...
... The Schott Optical Glass catalog offers nearly 300 different optical glasses. For lens designers, the most important difference among these glasses is the index of refraction and dispersion (rate of change of index with wavelength). Typically, an optical glass is specified by its index of refraction ...
Measurement of transparent plates with
... one possible combination of part placement with a PSI algorithm that suppresses unwanted modulations in the interference intensity. There are many other possible combinations that rely on the same principle. The key is to match the modulation frequencies determined by expansion of Eqs. 共3兲–共5兲 with ...
... one possible combination of part placement with a PSI algorithm that suppresses unwanted modulations in the interference intensity. There are many other possible combinations that rely on the same principle. The key is to match the modulation frequencies determined by expansion of Eqs. 共3兲–共5兲 with ...
O A RIGINAL RTICLES
... Fig.7 shows a comparative result for the variation of the refractive index, n with “In” content. It can be seen that, the behaviour of refractive index for all of the investigated samples is similar, which is due to the normal dispersion. The refractive index, n has a higher values at low wavelength ...
... Fig.7 shows a comparative result for the variation of the refractive index, n with “In” content. It can be seen that, the behaviour of refractive index for all of the investigated samples is similar, which is due to the normal dispersion. The refractive index, n has a higher values at low wavelength ...
——— Our CVD diamond has an extremely broad
... optical components are mechanically robust and offer the longest lifetime under harsh conditions. ...
... optical components are mechanically robust and offer the longest lifetime under harsh conditions. ...
Effect of pores on transmission properties of transparent ceramics
... appreciable attention of research due to their wide applications such as lasers [1-3], optical electronics [4] and transparent armor [5]. With the improvement of ceramic materials processing technology, many kinds of high-quality transparent polycrystalline ceramics have been developed, such as Al2O ...
... appreciable attention of research due to their wide applications such as lasers [1-3], optical electronics [4] and transparent armor [5]. With the improvement of ceramic materials processing technology, many kinds of high-quality transparent polycrystalline ceramics have been developed, such as Al2O ...
Optical Materials for LWIR Applications
... Sodium chloride is ordinary rock salt and is soluble in water. Even so, it has excellent optical properties in the LWIR. It has a continuous transmittance value of over 92% from 2 to 14μm. It can be polished easily and is commonly used for spectrometer windows, high powered laser windows, and prisms ...
... Sodium chloride is ordinary rock salt and is soluble in water. Even so, it has excellent optical properties in the LWIR. It has a continuous transmittance value of over 92% from 2 to 14μm. It can be polished easily and is commonly used for spectrometer windows, high powered laser windows, and prisms ...
Difficulties associated with working with UV and IR optics
... Reflective coatings are limited to wavelengths greater than 0.15 microns if they are to be broadband, though narrow bandwidth filters can be designed for lower wavelengths [1]. One of the difficulties associated with coating UV optics is that coatings are applied at high temperatures, so stress is i ...
... Reflective coatings are limited to wavelengths greater than 0.15 microns if they are to be broadband, though narrow bandwidth filters can be designed for lower wavelengths [1]. One of the difficulties associated with coating UV optics is that coatings are applied at high temperatures, so stress is i ...
Non stick research
... P13552 Background Research: Non Stick Surface Materials This document outlines characteristics of various materials that the design team is considering for initial testing. Candidate materials for Transmissive UV optics include Fused Silica, Quartz, Vycor, some formulations of Pyrex, Sapphire and a ...
... P13552 Background Research: Non Stick Surface Materials This document outlines characteristics of various materials that the design team is considering for initial testing. Candidate materials for Transmissive UV optics include Fused Silica, Quartz, Vycor, some formulations of Pyrex, Sapphire and a ...
Our single crystal CVD diamond opens the way to new
... Element Six, part of the De Beers Group of Companies, designs, develops and produces synthetic diamond and other supermaterials, and operates worldwide with primary manufacturing facilities in China, Germany, Ireland, South Africa, the UK and US. Element Six supermaterial solutions are used in appli ...
... Element Six, part of the De Beers Group of Companies, designs, develops and produces synthetic diamond and other supermaterials, and operates worldwide with primary manufacturing facilities in China, Germany, Ireland, South Africa, the UK and US. Element Six supermaterial solutions are used in appli ...
Synopses by Kim Larsen
... expected, the approximate time to beam degradation increases with lower absorption and lower distortion sensitivity and higher heat capacity. However, since there were many assumptions made, these derivations are rough and only a way to determine approximate relationships between different system va ...
... expected, the approximate time to beam degradation increases with lower absorption and lower distortion sensitivity and higher heat capacity. However, since there were many assumptions made, these derivations are rough and only a way to determine approximate relationships between different system va ...
PDF
... materials with equal and opposite amounts of chromatic aberration to correct for color. Before doing any thermal modeling, We must make sure that all necessary operands affected by temperature change has been inserted in ZEMAX to make athermal design [12] . The optical design of this system was perf ...
... materials with equal and opposite amounts of chromatic aberration to correct for color. Before doing any thermal modeling, We must make sure that all necessary operands affected by temperature change has been inserted in ZEMAX to make athermal design [12] . The optical design of this system was perf ...
J. Spigulis. Side-emitting optical fibers brighten our world in new
... 0.4 µm wavelength range) may be particularly well suited to clinical applications such as the use of UV-C irradiation to induce sterilization. The fibers might also be used to create “smart” textiles for contact skin tanning by means of side-emitted UV-A radiation. Further progress is needed, however ...
... 0.4 µm wavelength range) may be particularly well suited to clinical applications such as the use of UV-C irradiation to induce sterilization. The fibers might also be used to create “smart” textiles for contact skin tanning by means of side-emitted UV-A radiation. Further progress is needed, however ...
Synopsis by TAYABALY Kashmira
... Therefore, to keep the UV system into focus one will need to introduce active means, such as piezoelectric components while passive means are tolerable in IR under certain precautions in the way the materials are chosen to cancel the shift in focus related to temperature change. Consequently, UV sys ...
... Therefore, to keep the UV system into focus one will need to introduce active means, such as piezoelectric components while passive means are tolerable in IR under certain precautions in the way the materials are chosen to cancel the shift in focus related to temperature change. Consequently, UV sys ...
Niyaz_Ahmad_Report
... occurrence of well-dispersed, very small crystals having desirable properties akin to that of the crystallized bodies. The particular material properties can be programmed to a significant extent. In the recent past, ferroelectric ceramics have attracted the attention of many researchers owing to th ...
... occurrence of well-dispersed, very small crystals having desirable properties akin to that of the crystallized bodies. The particular material properties can be programmed to a significant extent. In the recent past, ferroelectric ceramics have attracted the attention of many researchers owing to th ...
Review of paper entitled “Athermalization of optical instruments from
... materials that can absorb large amounts of heat with small resulting temperature rise, and conduct this heat away rapidly. Glasses: Most glasses have values in the range of 5 to 25x10-6 which will result in a large wavefront error for a relative small dT. For example, a 10mm thick BK7 element with ...
... materials that can absorb large amounts of heat with small resulting temperature rise, and conduct this heat away rapidly. Glasses: Most glasses have values in the range of 5 to 25x10-6 which will result in a large wavefront error for a relative small dT. For example, a 10mm thick BK7 element with ...
PROGRAM NAUCZANIA
... He/she can use reference and database information and interpret those data. He/she can use theoretical results in practice. ...
... He/she can use reference and database information and interpret those data. He/she can use theoretical results in practice. ...
Optical Properties of Condensed Matters
... luminesce strongly When electrons are promoted into the excited states of the molecule. The luminescence is Stokes shifted to lower energy compared to absorption, and typically occurs in the middle of the visible spectral region. The emission wavelength can be tuned by small alternation to the chemi ...
... luminesce strongly When electrons are promoted into the excited states of the molecule. The luminescence is Stokes shifted to lower energy compared to absorption, and typically occurs in the middle of the visible spectral region. The emission wavelength can be tuned by small alternation to the chemi ...
Transparent ceramics
Many ceramic materials, both glassy and crystalline, have found use as optically transparent materials in various forms from bulk solid-state components to high surface area forms such as thin films, coatings, and fibers. Such devices have found widespread use for various applications in the electro-optical field including: optical fibers for guided lightwave transmission, optical switches, laser amplifiers and lenses, hosts for solid-state lasers and optical window materials for gas lasers, and infrared (IR) heat seeking devices for missile guidance systems and IR night vision.While single-crystalline ceramics may be largely defect-free (particularly within the spatial scale of the incident light wave), optical transparency in polycrystalline materials is limited by the amount of light that is scattered by their microstructural features. The amount of light scattering therefore depends on the wavelength of the incident radiation, or light.For example, since visible light has a wavelength scale on the order of hundreds of nanometers, scattering centers will have dimensions on a similar spatial scale. Most ceramic materials, such as alumina and its compounds, are formed from fine powders, yielding a fine grained polycrystalline microstructure that is filled with scattering centers comparable to the wavelength of visible light. Thus, they are generally opaque as opposed to transparent materials. Recent nanoscale technology, however, has made possible the production of (poly)crystalline transparent ceramics such as alumina Al2O3, yttria alumina garnet (YAG), and neodymium-doped Nd:YAG.