Development of a67kHz Internal OPO Laser for Hellborne LIdar
... Wlaser diode (LD) as a pump light source and used KTP (KTiOPO4) for the non-linear optical crystal. The light-to-light conversion efficiency was 5%. This laser weighs 6.25 kg and its dimensions are 115 x 73 x 337 mm[1]. Improving the spatial resolution of this lidar system requires higher repetition ...
... Wlaser diode (LD) as a pump light source and used KTP (KTiOPO4) for the non-linear optical crystal. The light-to-light conversion efficiency was 5%. This laser weighs 6.25 kg and its dimensions are 115 x 73 x 337 mm[1]. Improving the spatial resolution of this lidar system requires higher repetition ...
Digital holography of total internal reflection
... (fTIR). ii) Inhomogeneity in the index n2 of the second medium can cause scattering of the evanescent field. iii) Suitable dye molecules placed in the evanescent field can absorb energy from the field and give off fluorescence. The process i) is the basis of the near-field scanning optical microscop ...
... (fTIR). ii) Inhomogeneity in the index n2 of the second medium can cause scattering of the evanescent field. iii) Suitable dye molecules placed in the evanescent field can absorb energy from the field and give off fluorescence. The process i) is the basis of the near-field scanning optical microscop ...
HOLOGRAM(REFLECTION)
... being the object beam. This experiment is associated with reflection holograms. Part of this experimental setup involves the laser beam being reflected so as to pass through a camera and then a spatial filter. The camera provides a convenient shutter. Use the bulb setting and the remote shutter rele ...
... being the object beam. This experiment is associated with reflection holograms. Part of this experimental setup involves the laser beam being reflected so as to pass through a camera and then a spatial filter. The camera provides a convenient shutter. Use the bulb setting and the remote shutter rele ...
TEM - Department of Mechanical Engineering
... TEM sample support mesh "grid", with ultramicrotomy sections TEM specimen stage designs include airlocks to allow for insertion of the specimen holder into the vacuum with minimal increase in pressure in other areas of the microscope. The specimen holders are adapted to hold a standard size of grid ...
... TEM sample support mesh "grid", with ultramicrotomy sections TEM specimen stage designs include airlocks to allow for insertion of the specimen holder into the vacuum with minimal increase in pressure in other areas of the microscope. The specimen holders are adapted to hold a standard size of grid ...
Class 3b Laser Safety
... also have to let as much of all other wavelengths of light through. Laser Safety Goggles are designed to absorb their intended wavelength rather than reflect it, so as to minimise the possibility of additional stray reflections around. The companies that sell Laser Safety Goggles test their goggles, ...
... also have to let as much of all other wavelengths of light through. Laser Safety Goggles are designed to absorb their intended wavelength rather than reflect it, so as to minimise the possibility of additional stray reflections around. The companies that sell Laser Safety Goggles test their goggles, ...
Chloroplasts in living cells and the string-of
... phase or bright field microscopy to be in the living condition, as evidenced by vigorous cytoplasmic streaming. These observations confirmed the widespread occurrence of strings of grana in all the species examined. A selection of these CLSM images for six different plant species is shown in Figure ...
... phase or bright field microscopy to be in the living condition, as evidenced by vigorous cytoplasmic streaming. These observations confirmed the widespread occurrence of strings of grana in all the species examined. A selection of these CLSM images for six different plant species is shown in Figure ...
Dunlap Institute Summer School: Fourier Transform Spectroscopy Lab
... Figure 1: Diagram of a Michelson interferometer. A beam of light from the laser travels through a lens and strikes the beam-splitter. The beam-splitter is designed to reflect 50% of the incident light and transmit the other 50%. The incident beam therefore splits into two beams; one beam is reflecte ...
... Figure 1: Diagram of a Michelson interferometer. A beam of light from the laser travels through a lens and strikes the beam-splitter. The beam-splitter is designed to reflect 50% of the incident light and transmit the other 50%. The incident beam therefore splits into two beams; one beam is reflecte ...
Active Aperture Control and Sensor Modulation for Flexible Imaging
... blur caused by the filter mask. Because the blurred masks on the SLM overlap, a special control algorithm is required to find the optimal mask which can detect all the scene points. In contrast, the third design is capable to control the response of individual pixels on the sensor due to the fact th ...
... blur caused by the filter mask. Because the blurred masks on the SLM overlap, a special control algorithm is required to find the optimal mask which can detect all the scene points. In contrast, the third design is capable to control the response of individual pixels on the sensor due to the fact th ...
Controllable optical negative refraction and
... refraction1–3 . The last of these has attracted particular interest, mainly because of its promise for super-resolution imaging4–6 . However, the widespread use of negative refraction at optical frequencies is challenged by high losses and strong dispersion effects, which typically limit operation t ...
... refraction1–3 . The last of these has attracted particular interest, mainly because of its promise for super-resolution imaging4–6 . However, the widespread use of negative refraction at optical frequencies is challenged by high losses and strong dispersion effects, which typically limit operation t ...
Color center production by femtosecond-pulse laser
... pulses, resulting in w = 390 µm. In this measure, the pulse energy was 547 µJ and the pulse width was 60 fs, resulting in a color center creation threshold of 1.9 TW/cm2 for YLF. By applying a method recently developed [2, 13] to estimate the threshold for color center formation in LiF, its value wa ...
... pulses, resulting in w = 390 µm. In this measure, the pulse energy was 547 µJ and the pulse width was 60 fs, resulting in a color center creation threshold of 1.9 TW/cm2 for YLF. By applying a method recently developed [2, 13] to estimate the threshold for color center formation in LiF, its value wa ...
Motion and Optical Flow
... – Differential algorithms – Based on gradients in space and time – Dense correspondence estimates – Most common with video • Large displacements – Matching algorithms – Based on correlation or features – Sparse correspondence estimates – Most common with multiple cameras / stereo ...
... – Differential algorithms – Based on gradients in space and time – Dense correspondence estimates – Most common with video • Large displacements – Matching algorithms – Based on correlation or features – Sparse correspondence estimates – Most common with multiple cameras / stereo ...
geometrical optics
... Discussion An optical lens is a piece of glass or other transparent material used to direct or control rays of light. The refraction of light at the surface of a lens depends on its shape, its index of refraction, and the nature of the medium surrounding it (usually air), in accordance with Snell’s ...
... Discussion An optical lens is a piece of glass or other transparent material used to direct or control rays of light. The refraction of light at the surface of a lens depends on its shape, its index of refraction, and the nature of the medium surrounding it (usually air), in accordance with Snell’s ...
snowbird_poster - Yavuz Lab! - University of Wisconsin–Madison
... In agreement with the numerical results of Figs 3 and 4, Eq. (8) shows that the probe pulse propagates without attenuation and with a group velocity determined by the intensity of the coupling laser beam, | c 0 |2. Remarkably, this group velocity, and therefore the time delay obtained while propaga ...
... In agreement with the numerical results of Figs 3 and 4, Eq. (8) shows that the probe pulse propagates without attenuation and with a group velocity determined by the intensity of the coupling laser beam, | c 0 |2. Remarkably, this group velocity, and therefore the time delay obtained while propaga ...
LATTICE IMAGING IN TRANSMISSION ELECTRON MICROSCOPY
... croscope, composed of the objective, intermediate and projector magnetic lenses. The image is visualized on a fluorescent screen and recorded on a photographic film or on a CCD-camera. Objective lens is the most important lens of TEM, because its aberrations limit the resolution of the microscope. A ...
... croscope, composed of the objective, intermediate and projector magnetic lenses. The image is visualized on a fluorescent screen and recorded on a photographic film or on a CCD-camera. Objective lens is the most important lens of TEM, because its aberrations limit the resolution of the microscope. A ...
Nondiffracting Light Beams for Long Ranges
... We have described about LRNB generation by light beam transmission showing some examples of generated LRNBs by an optical system, up to the 3rd section. The optical system is a Galilean telescope with an eyepiece that has a spherical aberration. If we use the LRNB optical system for reception of lig ...
... We have described about LRNB generation by light beam transmission showing some examples of generated LRNBs by an optical system, up to the 3rd section. The optical system is a Galilean telescope with an eyepiece that has a spherical aberration. If we use the LRNB optical system for reception of lig ...
Lab 1 Oscilloscope Waves and Speed of Light
... Press the DC Offset button on the Function Generator. Turn up the DC Offset until you see light coming out of the laser. 4. Have the laser coming out as horizontal as possible (relative to the floor). Point the laser to a mirror on a stand in the corner of the room, and adjust the mirror so that lig ...
... Press the DC Offset button on the Function Generator. Turn up the DC Offset until you see light coming out of the laser. 4. Have the laser coming out as horizontal as possible (relative to the floor). Point the laser to a mirror on a stand in the corner of the room, and adjust the mirror so that lig ...
Pdf - Text of NPTEL IIT Video Lectures
... is closer to eyes where you are viewing the object. Now, condenser lens is the part of illumination systems and it focuses a fine beam of light on to the specimen in a very small cone, and you will see what kinds of illumination system are available. If you recall the history we have told you are Ko ...
... is closer to eyes where you are viewing the object. Now, condenser lens is the part of illumination systems and it focuses a fine beam of light on to the specimen in a very small cone, and you will see what kinds of illumination system are available. If you recall the history we have told you are Ko ...
Fundamentals of Optical Interferometry for Thermal Expansion
... electronics, high speed photodetectors, CCD cameras and computerized data acquisition systems have considerably improved the versatility, range and resolution of interferometers, allowing a wide variety of applications (Table I). A major advantage of laser interferometry for length measurements is t ...
... electronics, high speed photodetectors, CCD cameras and computerized data acquisition systems have considerably improved the versatility, range and resolution of interferometers, allowing a wide variety of applications (Table I). A major advantage of laser interferometry for length measurements is t ...
Hollow Retroreflectors Promote Precision Optical Alignment
... beyond traditional uses, such as laser tracking, and further into space-based interferometry, long-path spectroscopy and other emerging applications. by Zvi Bleier, Itai Vishnia and Jack Lipkins, PLX Inc. recision optical alignment capability across a range from the UV to the far-IR and a lighterwei ...
... beyond traditional uses, such as laser tracking, and further into space-based interferometry, long-path spectroscopy and other emerging applications. by Zvi Bleier, Itai Vishnia and Jack Lipkins, PLX Inc. recision optical alignment capability across a range from the UV to the far-IR and a lighterwei ...
1 Janaky Narayanan PC 5213 AY 2004
... atoms that are obtained when parts of the molecule are rotated about one of the bonds. A change in the conformation necessarily does not involve any breaking of covalent bonds. Groups that are connected by a single bond can undergo rotation leading to different relative orientations with respect to ...
... atoms that are obtained when parts of the molecule are rotated about one of the bonds. A change in the conformation necessarily does not involve any breaking of covalent bonds. Groups that are connected by a single bond can undergo rotation leading to different relative orientations with respect to ...
Laser microfabrication of alumina
... Alumina-silicon carbide nanocomposites have many potential applications, because of their excellent mechanical properties. However, they are very difficult to fabricate for MEMS devices due to the difficulty in machining these nanocomposites. Alumina-silicon carbide nanocomposites sintered by a pres ...
... Alumina-silicon carbide nanocomposites have many potential applications, because of their excellent mechanical properties. However, they are very difficult to fabricate for MEMS devices due to the difficulty in machining these nanocomposites. Alumina-silicon carbide nanocomposites sintered by a pres ...
(FT-IR) Microspectroscopic Measurements of Intact Spheres
... ing the absorption spectrum of the material from recorded data such that the recovered spectra are independent of the sample morphology.4,6–8 One set of approaches today seeks to model the material as an idealized object, such as a sphere, and largely neglects the optical configuration of the micros ...
... ing the absorption spectrum of the material from recorded data such that the recovered spectra are independent of the sample morphology.4,6–8 One set of approaches today seeks to model the material as an idealized object, such as a sphere, and largely neglects the optical configuration of the micros ...
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r - Nano[studijní] materiály - Technical University of Liberec
... • The second crystal, made from the same material as sample crystal, but with another length is used with mirror placed on the top of this crystal • If there is applied the same electric field on investigated sample (light is passing through it) and on compensating crystal (light is reflected from t ...
... • The second crystal, made from the same material as sample crystal, but with another length is used with mirror placed on the top of this crystal • If there is applied the same electric field on investigated sample (light is passing through it) and on compensating crystal (light is reflected from t ...
Active imaging lens with real-time variable resolution and constant
... or amplitude is given for the reduced-resolution transition zone. A reason for this is that depending on the importance of this transition zone, different angular lengths ΔΩ of this zone can be used. Figure 4 shows the calculated maximal mirror amplitude required as a function of both the focal leng ...
... or amplitude is given for the reduced-resolution transition zone. A reason for this is that depending on the importance of this transition zone, different angular lengths ΔΩ of this zone can be used. Figure 4 shows the calculated maximal mirror amplitude required as a function of both the focal leng ...
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.