Large-area full-field thickness measurement of glass plates by an optical interferometric system

2014 ◽  
Vol 333 ◽  
pp. 243-252 ◽  
Author(s):  
Po-Chi Sung ◽  
Wei-Chung Wang ◽  
Chi-Hung Hwang ◽  
Meng-Hsiu Li
Keyword(s):  
Thickness Measurement ◽  
Large Area ◽  
Full Field ◽  
Glass Plates

scholarly journals Full-field thickness measurement of ultrathin liquid film in receding contact-induced nano-channel using surface plasmon resonance

2018 ◽  
Vol 26 (16) ◽  
pp. 20975 ◽  
Author(s):  
Iltai (Isaac) Kim ◽  
Sokwon Paik ◽  
Yang Bae Jeon ◽  
Jae Sung Park ◽  
Hyunjung Kim ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Liquid Film ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Thickness Measurement ◽  
Full Field ◽  
Nano Channel ◽  
Receding Contact

scholarly journals Large Area Full-Field Optical Coherence Tomography and its Applications

2008 ◽  
Vol 2 (1) ◽  
pp. 10-20 ◽  
Author(s):  
Shoude Chang ◽  
Sherif Sherif ◽  
Youxin Mao ◽  
Costel Flueraru
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Large Area ◽  
Full Field

scholarly journals Large thickness measurement of glass plates with a spectrally resolved interferometer using variable signal positions

OSA Continuum ◽  
2021 ◽  
Author(s):  
Kaining Zhang ◽  
Samuel Choi ◽  
Osami Sasaki ◽  
Songjie Luo ◽  
Takamasa Suzuki ◽  
...  
Keyword(s):  
Thickness Measurement ◽  
Large Thickness ◽  
Glass Plates ◽  
Spectrally Resolved

scholarly journals Astrometry With Schmidt Telescopes

1984 ◽  
Vol 78 ◽  
pp. 217-224
Author(s):  
C A Murray
Keyword(s):  
Reference Frame ◽  
Proper Motions ◽  
Large Area ◽  
Full Field ◽  
Potential Value ◽  
Focal Surface ◽  
Single Plate ◽  
Trigonometric Parallaxes ◽  
The Absolute

Photographic astrometry, including work with Schmidt telescopes, can be divided into two main fields, (i) the measurement of positions of objects relative to a reference frame of stars with known celestial coordinates, and (ii) the measurement of relative proper motions and trigonometric parallaxes from a series of plates taken on the same field. The former demands a knowledge of the absolute transformation between angles on the sky and measurements on a plate, whereas in the latter we are only interested in differential transformations from plate to plate. The potential value of Schmidt telescopes for both these fields of astrometry lies in the large area of sky and range of magnitude which can be imaged on a single plate. The former advantage is however, to some extent offset by the curvature of the focal surface which means that, in order to utilize the full field the plates must be constrained to the form of the focal surface during exposure.

scholarly journals Implementation and Use of Wide Fields in Future Very Large Telescopes

1984 ◽  
Vol 78 ◽  
pp. 549-562 ◽  
Author(s):  
J.R.P. Angel
Keyword(s):  
High Efficiency ◽  
Optical Design ◽  
Atmospheric Dispersion ◽  
General Purpose ◽  
Full Potential ◽  
Large Area ◽  
Full Field ◽  
Drift Scan ◽  
Large Telescopes ◽  
Ccd Arrays

AbstractThe full potential of the next generation of larger telescopes will be realized only if they have well instrumented large fields of view. Scientific problems for which very large ground-based optical telescopes will be of most value often will need surveys to very deep limits with imaging and slitless spectroscopy, followed by spectroscopy of faint objects taken many at once over the field. Improved instruments and detectors for this purpose are being developed. Remotely positioned fibers allow the coupling of light from many objects in the field to the spectrograph slit. CCD arrays, operated in the TDI or drift scan mode, will make large area detectors of high efficiency that may supercede photographic plates. An ideal telescope optical design should be based on a fast parabolic primary, have a field of at least 1° with achromatic images < 0.25 arcseconds and have provision for dispersive elements to be used for slitless spectroscopy and compensation of atmospheric dispersion over the full field. A good solution for a general purpose telescope that can satisfy these needs is given by a three element refractive corrector at a fast Cassegrain focus. A specialized telescope dedicated to sky surveys, with better image quality and higher throughput than presently available, might be built as a scaled up Schmidt with very large photographic plates. Better performance in most areas should be obtained with a large CCD mosaic detector operated in the drift scan mode at a telescope with a 2-mirror reflecting corrector.

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