Tech Notes Wavelength 2012 | www.ll.mit.edu
... bandwidth of the semiconductor gain media and the bandwidth allocation per element (grating dispersion and resolution). For a typical semiconductor gain bandwidth of ~40 nm, an array with hundreds of elements could be wavelength beam combined. Commercialization The technology described above has bee ...
... bandwidth of the semiconductor gain media and the bandwidth allocation per element (grating dispersion and resolution). For a typical semiconductor gain bandwidth of ~40 nm, an array with hundreds of elements could be wavelength beam combined. Commercialization The technology described above has bee ...
No Slide Title
... where l is the thickness of the sample in µm, N is the number of light-to-dark fringe cycles that are measured in the HeNe interference scan between the maxima of the two wave packets in the arc-lamp interference scan, and the factor of 0.632816 corresponds to the wavelength of the HeNe laser in µm1 ...
... where l is the thickness of the sample in µm, N is the number of light-to-dark fringe cycles that are measured in the HeNe interference scan between the maxima of the two wave packets in the arc-lamp interference scan, and the factor of 0.632816 corresponds to the wavelength of the HeNe laser in µm1 ...
lecture plan
... L7: Detailed Theory of Plane Transmission Grating, Formation of Spectra, Concept of Absent Spectra, Dispersive Power of Diffraction Grating. L8: Resolving Power of an Optical Instrument, Rayleigh Criteria for Resolution, Resolving Power of Plane Transmission Grating and Resolving Power of a Glass Pr ...
... L7: Detailed Theory of Plane Transmission Grating, Formation of Spectra, Concept of Absent Spectra, Dispersive Power of Diffraction Grating. L8: Resolving Power of an Optical Instrument, Rayleigh Criteria for Resolution, Resolving Power of Plane Transmission Grating and Resolving Power of a Glass Pr ...
Helium Neon Laser - Educational Lasers
... The basics of gas lasers like resonator types and stability, coherence and mode behavior are shown in practice with this open-frame gas laser and are discussed in the comprehensive manual. By variation of the resonator mirrors (the set comprises 5 mirrors) the resonator properties and its influences ...
... The basics of gas lasers like resonator types and stability, coherence and mode behavior are shown in practice with this open-frame gas laser and are discussed in the comprehensive manual. By variation of the resonator mirrors (the set comprises 5 mirrors) the resonator properties and its influences ...
Pulsed-source and swept-source spectral-domain optical coherence tomography with reduced motion artifacts
... Spectral-domain optical coherence tomography (SD-OCT) makes use of low-coherence spectral interferometry to obtain cross-sectional images of a biological sample.1-3 Interference fringes as a function of wavelength are measured using a broadband light source and a spectrometer based on a detector arr ...
... Spectral-domain optical coherence tomography (SD-OCT) makes use of low-coherence spectral interferometry to obtain cross-sectional images of a biological sample.1-3 Interference fringes as a function of wavelength are measured using a broadband light source and a spectrometer based on a detector arr ...
Progression of bacterial infections studied in real time
... collection (Helmchen and Denk, 2005). Confocal microscopy improved the quality of microscopic images with the introduction of a detection pinhole that rejects all light that does not originate from the focus site. This does, however, also limit the signal strength, and may cause an inadequate signal ...
... collection (Helmchen and Denk, 2005). Confocal microscopy improved the quality of microscopic images with the introduction of a detection pinhole that rejects all light that does not originate from the focus site. This does, however, also limit the signal strength, and may cause an inadequate signal ...
Optical Computers (Erin Raphael, 2006)
... Why We Need Them Moore’s Law states that the number of transistors on a computer chip doubles every eighteen months. Traditional transistors can no longer keep up. ...
... Why We Need Them Moore’s Law states that the number of transistors on a computer chip doubles every eighteen months. Traditional transistors can no longer keep up. ...
Label-free super-resolution imaging of adenoviruses by submerged
... Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually require specimens to be placed under vacuum conditions, thus making ...
... Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually require specimens to be placed under vacuum conditions, thus making ...
Barium Ions for Quantum Computation
... MHz using a high-precision wavelength meter (HighFinesse WS-7). The blue is then modulated using a resonant EOM at 8.037 GHz (New Focus model 4851), while the red has its drive current modulated directly with a bias-T. The two are then combined using a dichroic mirror and coupled into a single mode ...
... MHz using a high-precision wavelength meter (HighFinesse WS-7). The blue is then modulated using a resonant EOM at 8.037 GHz (New Focus model 4851), while the red has its drive current modulated directly with a bias-T. The two are then combined using a dichroic mirror and coupled into a single mode ...
Tutorial: Are You Safe at a Laser Light Show?
... conversion, the assessor is able to evaluate the exposure against the applicable irradiance based exposure limit. With only a single pulse needed to register a reading, the BC20 can be used to immediately determine the peak power present in an operational laser effect. This is something that has bee ...
... conversion, the assessor is able to evaluate the exposure against the applicable irradiance based exposure limit. With only a single pulse needed to register a reading, the BC20 can be used to immediately determine the peak power present in an operational laser effect. This is something that has bee ...
The present work gives recommendations for rational - Dimka
... significantly lower monochromatic aberrations and the spherochromatism. As a result, the polychromatic resolution of an objective is 98 mm-1 across the field angle 2 60 o with the contrast K =0,5; and with K =0,78 it never lowers below 50 mm-1. The distortion within the entire field of vision doe ...
... significantly lower monochromatic aberrations and the spherochromatism. As a result, the polychromatic resolution of an objective is 98 mm-1 across the field angle 2 60 o with the contrast K =0,5; and with K =0,78 it never lowers below 50 mm-1. The distortion within the entire field of vision doe ...
43 Confocal and Multi-Photon Imaging of Living Embryos
... “Four-Dimensional” Imaging One of the vicissitudes of imaging living embryos is that they are thick, and their structure is constantly changing. As a result, embryos must often be imaged throughout their thickness and over time. Such 4D imaging entails the collection of a stack of images made at dif ...
... “Four-Dimensional” Imaging One of the vicissitudes of imaging living embryos is that they are thick, and their structure is constantly changing. As a result, embryos must often be imaged throughout their thickness and over time. Such 4D imaging entails the collection of a stack of images made at dif ...
Experiment 3 1 The Michelson Interferometer and the He
... After obtaining clear fringes from the laser light, a determination of the value of ! for the He-‐Ne laser should be made using Eq. (5). It is good practice to measure the distance ! over whi ...
... After obtaining clear fringes from the laser light, a determination of the value of ! for the He-‐Ne laser should be made using Eq. (5). It is good practice to measure the distance ! over whi ...
Applications of Microscopy in Bacteriology
... Microscopy is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). Microscopy is all about seeing, and seeing things with greater knowledge and insight. Microscopy is based ...
... Microscopy is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). Microscopy is all about seeing, and seeing things with greater knowledge and insight. Microscopy is based ...
Wavelength-tuning interferometry of intraocular distances
... PCI ~cf. Table 1!. PCI data were measured with a interferometric setup, which is described in detail elsewhere.37 They are equal within the standard deviation of WTI. 6. Conclusion ...
... PCI ~cf. Table 1!. PCI data were measured with a interferometric setup, which is described in detail elsewhere.37 They are equal within the standard deviation of WTI. 6. Conclusion ...
Problem Sheet
... 3. Why does a diving mask help you see more clearly underwater? How do prescription swimming goggles work in both air and water? ...
... 3. Why does a diving mask help you see more clearly underwater? How do prescription swimming goggles work in both air and water? ...
A Ti: Sapphire Planar Waveguide Laser Grown by Pulsed Laser
... can be transferred from the target to the layer under these growth conditions 5. Assuming therefore that the sample had a doping level equivalent to ~0.1 wt % Ti2O3 it was cut and optically polished to a length of 3.8 mm, to correspond roughly to the calculated pump absorption length of ~3.4mm deter ...
... can be transferred from the target to the layer under these growth conditions 5. Assuming therefore that the sample had a doping level equivalent to ~0.1 wt % Ti2O3 it was cut and optically polished to a length of 3.8 mm, to correspond roughly to the calculated pump absorption length of ~3.4mm deter ...
Physics 102 Lab 8: Measuring wavelengths with a
... everywhere one is positive, the other is negative by an equal amount. Although the diffraction of light waves ostensibly appears the same as the diffraction of classical waves such as water or sound waves, it is an intrinsically quantum mechanical process. Indeed, while the diffraction pattern of a ...
... everywhere one is positive, the other is negative by an equal amount. Although the diffraction of light waves ostensibly appears the same as the diffraction of classical waves such as water or sound waves, it is an intrinsically quantum mechanical process. Indeed, while the diffraction pattern of a ...
Direct Laser Writing: Versatile Tool for Microfabrication of Lithium
... close to the calculated value, axial size was somewhat larger, approximately 60 µm, as is illustrated by side-view optical image shown in Fig. 4(a). While elongation of the focus limits the axial resolution of DLW, it may be helpful for fast fabrication of thick DOEs. Precise reason for such elongat ...
... close to the calculated value, axial size was somewhat larger, approximately 60 µm, as is illustrated by side-view optical image shown in Fig. 4(a). While elongation of the focus limits the axial resolution of DLW, it may be helpful for fast fabrication of thick DOEs. Precise reason for such elongat ...
Cell Surface Membrane Remodelling and Mitochondrial
... or the bath. Our previous experience with live cell imaging encompasses studies on molluscan neurons [1,2], differentiated PC12 cells [4,13], sympathetic neurons [14], acute hippocampal slices [15, acute spinal cord slices [16], and hippocampal slice cultures [3]. 2.2 Optimizing imaging conditions T ...
... or the bath. Our previous experience with live cell imaging encompasses studies on molluscan neurons [1,2], differentiated PC12 cells [4,13], sympathetic neurons [14], acute hippocampal slices [15, acute spinal cord slices [16], and hippocampal slice cultures [3]. 2.2 Optimizing imaging conditions T ...
Technology for a better society
... Information limit: corresponds to the highest spatial frequency still appreciably transmitted to the intensity spectrum. This resolution is related to the finest detail that can actually be seen in the image (which however is only interpretable using image simulation). For a thin specimen, such limi ...
... Information limit: corresponds to the highest spatial frequency still appreciably transmitted to the intensity spectrum. This resolution is related to the finest detail that can actually be seen in the image (which however is only interpretable using image simulation). For a thin specimen, such limi ...
Label-Free Molecular Imaging of Living Cells
... the distributions of light intensities of Raman peaks at the Raman shifts shown in the figure. In the observation, light of 532 nm wavelength was used for illumination. The images contain 156 × 209 pixels and the image acquisition time was about 14 min. The Raman peak at 753 cm-1 can be assigned to ...
... the distributions of light intensities of Raman peaks at the Raman shifts shown in the figure. In the observation, light of 532 nm wavelength was used for illumination. The images contain 156 × 209 pixels and the image acquisition time was about 14 min. The Raman peak at 753 cm-1 can be assigned to ...
LAB 3 - SPATIAL COHERENCE AND OPTICAL IMAGING
... generally means that either 1) the source is very small compared with the propagation distance or 2) the source is very far from an observation point such that, in either case, the source resembles a point source over the space of observation. The Van Cittert-Zernike theorem states that there is a F ...
... generally means that either 1) the source is very small compared with the propagation distance or 2) the source is very far from an observation point such that, in either case, the source resembles a point source over the space of observation. The Van Cittert-Zernike theorem states that there is a F ...
Technical Tip - Cytoskeleton, Inc.
... A5: Yes, the probes are stable at room temperature for a few days. However, it strongly depends on the probe and the solvent. Thus, it is recommended to store all of the probes or solutions at –20°C. Q6: Are SiR-actin and SiR-tubulin toxic to cells? A6: Yes, above a certain threshold both probes sho ...
... A5: Yes, the probes are stable at room temperature for a few days. However, it strongly depends on the probe and the solvent. Thus, it is recommended to store all of the probes or solutions at –20°C. Q6: Are SiR-actin and SiR-tubulin toxic to cells? A6: Yes, above a certain threshold both probes sho ...
d) Laser system and its applications Question Bank
... Q.13: What accelerating voltage would be required for the electrons of an electron microscope if the microscope is to have the same resolving power as could be obtained using 100 keV gamma rays? ...
... Q.13: What accelerating voltage would be required for the electrons of an electron microscope if the microscope is to have the same resolving power as could be obtained using 100 keV gamma rays? ...
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.