MANU-CHAO: A Ground-Layer Adaptive Optics Experiment for the
... Fringe-tracker: – measure and correct the OPD between the two arms to keep the fringes – J to K-band – 1x1.5’ FoV ...
... Fringe-tracker: – measure and correct the OPD between the two arms to keep the fringes – J to K-band – 1x1.5’ FoV ...
2015 - Society for Astronomical Sciences
... The Hungaria have several characteristics that made them ideal for study, especially when using modest telescopes on the order of 0.2-0.5 m diameter. First, their orbital parameters mean that they are not subject to planetary tidal encounters. Second, they are all relatively small, the largest membe ...
... The Hungaria have several characteristics that made them ideal for study, especially when using modest telescopes on the order of 0.2-0.5 m diameter. First, their orbital parameters mean that they are not subject to planetary tidal encounters. Second, they are all relatively small, the largest membe ...
JWST Project Report to the PMC
... A New Set of Scientific Challenges New Frontiers of Astronomy 4.) Probe the chemical properties of solar systems (including our own) to constrain the building blocks of life ...
... A New Set of Scientific Challenges New Frontiers of Astronomy 4.) Probe the chemical properties of solar systems (including our own) to constrain the building blocks of life ...
Critical-Angle Transmission Gratings for High Resolution, Large Area Soft X-Ray Spectroscopy
... ΔE) and resolving power (large R = λ/Δλ). The x-ray band of interest for these science objectives extends over more than two orders of magnitude in energy. High quality spectroscopy over such a large band cannot be obtained with a single instrument. For example, imaging spectroscopy with a spectral ...
... ΔE) and resolving power (large R = λ/Δλ). The x-ray band of interest for these science objectives extends over more than two orders of magnitude in energy. High quality spectroscopy over such a large band cannot be obtained with a single instrument. For example, imaging spectroscopy with a spectral ...
Modern Optical Engineering
... course of study and that in the whole country there were less than a dozen potential employers for a graduate optical engineer. Despite the Dean’s gloom-and-doom prognostication, the future turned out amazingly well, and I have thoroughly enjoyed the practice of optical engineering and the people as ...
... course of study and that in the whole country there were less than a dozen potential employers for a graduate optical engineer. Despite the Dean’s gloom-and-doom prognostication, the future turned out amazingly well, and I have thoroughly enjoyed the practice of optical engineering and the people as ...
1 Scope
... The MONS Field Monitor is needed because of the possibility of light from neighbouring stars, particularly variables, entering the field stop of the MONS Telescope and affecting the photometry. Although ground-based observations can provide a snapshot of the field of the target stars, they will not ...
... The MONS Field Monitor is needed because of the possibility of light from neighbouring stars, particularly variables, entering the field stop of the MONS Telescope and affecting the photometry. Although ground-based observations can provide a snapshot of the field of the target stars, they will not ...
Tom Essinger-Hileman
... I describe physical-optics modeling of the reflector and feedhorn to validate the optical design. A matrix model that allows the calculation of the Mueller matrix of the antireflection-coated HWP for arbitrary frequency and angle of incidence is outlined. This will provide a framework for characteri ...
... I describe physical-optics modeling of the reflector and feedhorn to validate the optical design. A matrix model that allows the calculation of the Mueller matrix of the antireflection-coated HWP for arbitrary frequency and angle of incidence is outlined. This will provide a framework for characteri ...
Optical interferometry in astronomy
... fraction of a wavelength across the aperture of a telescope, the size of the image formed will not be diffraction-limited by the primary mirror, but rather by the coherence scale of the incoming wavefront. The transverse distance over which one expects rms pathlength difference to be λ/2.4 has been ...
... fraction of a wavelength across the aperture of a telescope, the size of the image formed will not be diffraction-limited by the primary mirror, but rather by the coherence scale of the incoming wavefront. The transverse distance over which one expects rms pathlength difference to be λ/2.4 has been ...
Preliminary Design Manual - Caltech Optical Observatories
... Figure 3. Telescope Solidworks model. ................................................................................................ 5 Figure 4. View from below of the telescope Nasmyth platform. .......................................................... 6 Figure 5. The image rotator and low order ...
... Figure 3. Telescope Solidworks model. ................................................................................................ 5 Figure 4. View from below of the telescope Nasmyth platform. .......................................................... 6 Figure 5. The image rotator and low order ...
ch4 light sample test
... d. sees nearby objects as blurry. Farsightedness can usually be corrected using a. convex mirrors. b. concave mirrors. c. convex lenses. d. concave lenses. What instruments use lenses or mirrors to collect and focus light from distant objects? a. microscopes b. optical fibers c. telescopes d. lasers ...
... d. sees nearby objects as blurry. Farsightedness can usually be corrected using a. convex mirrors. b. concave mirrors. c. convex lenses. d. concave lenses. What instruments use lenses or mirrors to collect and focus light from distant objects? a. microscopes b. optical fibers c. telescopes d. lasers ...
GISMO (the Gladders Image-slicing Multi
... GISMO has a total of 8 fundamental slices (and so in principle allows for a factor of 8 increase in the spatial packing of slits). These slices are split across the spatial axis in order to provide a simple quadrant symmetry to the optical design (and to keep the size of the reimaging optics small) ...
... GISMO has a total of 8 fundamental slices (and so in principle allows for a factor of 8 increase in the spatial packing of slits). These slices are split across the spatial axis in order to provide a simple quadrant symmetry to the optical design (and to keep the size of the reimaging optics small) ...
CHANDRA X-ray Center Ping Zhao
... positions are measured only on HRC-I as described in Section 4.2. However, at any given time, the relative position between the aimpoint and optical axis is the intrinsic property of the HRMA and ACA, independent of the detectors. One can therefore calculate the optical axis position on other detect ...
... positions are measured only on HRC-I as described in Section 4.2. However, at any given time, the relative position between the aimpoint and optical axis is the intrinsic property of the HRMA and ACA, independent of the detectors. One can therefore calculate the optical axis position on other detect ...
Document
... 1.1 Brief review of Matrix optics Light propagation in a optical system, can use a matrix M, whose elements are A, B, C, D, characterizes the optical system Completely ( known as the ray-transfer matrix.) to describe the rays transmission in the optical components. ...
... 1.1 Brief review of Matrix optics Light propagation in a optical system, can use a matrix M, whose elements are A, B, C, D, characterizes the optical system Completely ( known as the ray-transfer matrix.) to describe the rays transmission in the optical components. ...
T060269-01 - DCC - LIGO Document Control Center Portal
... Figure 4.2 Blow up of the main area of the IO components on the PSL table showing functional blocks of IO components. ________________________________________________________ 21 Figure 4.3 Layout drawing of HAM2,3 for the stable power recycling cavity configuration. ____ 23 Figure 4.4 Another view o ...
... Figure 4.2 Blow up of the main area of the IO components on the PSL table showing functional blocks of IO components. ________________________________________________________ 21 Figure 4.3 Layout drawing of HAM2,3 for the stable power recycling cavity configuration. ____ 23 Figure 4.4 Another view o ...
RESONATOR OPTICS
... The frequency selectivity of an optical resonator makes it useful as an optical filter or spectrum analyzer. Its most important use, however, is as a “container” within which laser light is generated. The laser is an optical resonator containing a medium that amplifies light. The resonator determine ...
... The frequency selectivity of an optical resonator makes it useful as an optical filter or spectrum analyzer. Its most important use, however, is as a “container” within which laser light is generated. The laser is an optical resonator containing a medium that amplifies light. The resonator determine ...
Surplus Shed Catalog
... included 10x wide field eyepiece, you will be able to magnify specimens from 50 to 1200 times. The longer objectives are spring-loaded and retractable to protect slides from breakage. The microscope also maintains parfocality from one magnification to another so the specimen stays in constant focus ...
... included 10x wide field eyepiece, you will be able to magnify specimens from 50 to 1200 times. The longer objectives are spring-loaded and retractable to protect slides from breakage. The microscope also maintains parfocality from one magnification to another so the specimen stays in constant focus ...
LIDAR MEASUREMENTS
... wavelength as close as possible to the radius of particles we want to observe. LIDAR uses ultraviolet, visible or near infrared light to image objects and can be used with a wide range of targets, including non-metallic objects, rocks, rain, chemical compounds, aerosols, clouds and even single molec ...
... wavelength as close as possible to the radius of particles we want to observe. LIDAR uses ultraviolet, visible or near infrared light to image objects and can be used with a wide range of targets, including non-metallic objects, rocks, rain, chemical compounds, aerosols, clouds and even single molec ...
Astronomical seeing conditions as determined by turbulence modelling and optical measurement
... Modern space geodetic techniques are required to provide measurements of millimetrelevel accuracy. A new fundamental space geodetic observatory for South Africa has been proposed. It will house state-of-the-art equipment in a location that guarantees optimal scientific output. Lunar Laser Ranging (L ...
... Modern space geodetic techniques are required to provide measurements of millimetrelevel accuracy. A new fundamental space geodetic observatory for South Africa has been proposed. It will house state-of-the-art equipment in a location that guarantees optimal scientific output. Lunar Laser Ranging (L ...
Lens and Camera Arrays for Sky Surveys and Space Surveillance
... Astronomers watch the sky, but not all astronomers are alike, and what they watch for varies significantly from one group to another. Following Lippershey’s invention of the refractor in 1608, early astronomers studied point targets with their telescopes, but surveyed the skies with their eyes. Even ...
... Astronomers watch the sky, but not all astronomers are alike, and what they watch for varies significantly from one group to another. Following Lippershey’s invention of the refractor in 1608, early astronomers studied point targets with their telescopes, but surveyed the skies with their eyes. Even ...
KAON 739 - Caltech Optical Observatories
... across the detector. This idea is the basis of the DRIZZLE algorithm [14] used on the Hubble Space Telescope. While phase diversity methods will work well with NIR image data, in principle it appears that this method could also be used on the monochromatic images within the “data cube” of an integra ...
... across the detector. This idea is the basis of the DRIZZLE algorithm [14] used on the Hubble Space Telescope. While phase diversity methods will work well with NIR image data, in principle it appears that this method could also be used on the monochromatic images within the “data cube” of an integra ...
Thermal_Compensator_System_CDD_01 - LIGO
... The Thermal Compensation System (TCS) will correct for a wide range of thermal effects in the interferometer, arising in several optics. While significant effort into reducing the coating and substrate absorptions is underway, TCS provides the most flexibility for corrections should some optic not m ...
... The Thermal Compensation System (TCS) will correct for a wide range of thermal effects in the interferometer, arising in several optics. While significant effort into reducing the coating and substrate absorptions is underway, TCS provides the most flexibility for corrections should some optic not m ...
Reflecting telescope
A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century as an alternative to the refracting telescope which, at that time, was a design that suffered from severe chromatic aberration. Although reflecting telescopes produce other types of optical aberrations, it is a design that allows for very large diameter objectives. Almost all of the major telescopes used in astronomy research are reflectors. Reflecting telescopes come in many design variations and may employ extra optical elements to improve image quality or place the image in a mechanically advantageous position. Since reflecting telescopes use mirrors, the design is sometimes referred to as a ""catoptric"" telescope.