Download or read book High resolution Wavefront Control Using Liquid Crystal Spatial Light Modulators written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid crystal spatial light modulator technology appropriate for high-resolution wavefront control has recently become commercially available. Some of these devices have several hundred thousand controllable degrees of freedom, more than two orders of magnitude greater than the largest conventional deformable mirror. We will present results of experiments to characterize the optical properties of these devices and to utilize them to correct aberrations in an optical system. We will also present application scenarios for these devices in high-power laser systems.
Download or read book High resolution Wavefront Control written by John D. Gonglewski and published by SPIE-International Society for Optical Engineering. This book was released on 1999 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High resolution Wavefront Control written by and published by . This book was released on 2002 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Crystal on Silicon Devices written by Andrés Márquez and published by MDPI. This book was released on 2019-11-19 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Crystal on Silicon (LCoS) has become one of the most widespread technologies for spatial light modulation in optics and photonics applications. These reflective microdisplays are composed of a high-performance silicon complementary metal oxide semiconductor (CMOS) backplane, which controls the light-modulating properties of the liquid crystal layer. State-of-the-art LCoS microdisplays may exhibit a very small pixel pitch (below 4 μm), a very large number of pixels (resolutions larger than 4K), and high fill factors (larger than 90%). They modulate illumination sources covering the UV, visible, and far IR. LCoS are used not only as displays but also as polarization, amplitude, and phase-only spatial light modulators, where they achieve full phase modulation. Due to their excellent modulating properties and high degree of flexibility, they are found in all sorts of spatial light modulation applications, such as in LCOS-based display systems for augmented and virtual reality, true holographic displays, digital holography, diffractive optical elements, superresolution optical systems, beam-steering devices, holographic optical traps, and quantum optical computing. In order to fulfil the requirements in this extensive range of applications, specific models and characterization techniques are proposed. These devices may exhibit a number of degradation effects such as interpixel cross-talk and fringing field, and time flicker, which may also depend on the analog or digital backplane of the corresponding LCoS device. The use of appropriate characterization and compensation techniques is then necessary.
Download or read book Wavefront Control Sensing System Based on an Opto Silicon Integrated Phase Contrast Technique written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the design and development of a high-speed, high-resolution wavefront sensing and control system. The system will couple high-resolution analog liquid crystal spatial light modulators with an innovative subtractive imaging sensor. The resulting system will achieve vast improvements in resolution, size, weight and cost over currently available systems.
Download or read book Per Krohg Kunstforeningen 26 marts 17 april 1966 written by and published by . This book was released on 1966 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving the Performance of Air Force Adaptive Optics Systems Using High Resolution Spatial Light Modulators with Deformable Mirrors Final Report written by and published by . This book was released on 2002 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents a comprehensive technical summary of the most significant work accomplished on Air Force Office of Scientific Research Contract Number F49620-99-l-0342. Since closed loop wave front control (WFC) systems currently being developed by the Air Force have residual wave front errors that reduce image quality, New Mexico State University has developed methods to reduce those residual errors and improve the quality (Strehl ratio) of Air Force WFC systems. Our approach is to develop concepts that utilize high-resolution spatial light modulators to improve the achievable system Strehl ratio. Two such concepts are (a) high resolution secondary WFC loops, and (b) reconfigurable Shack-Hartmann wave front sensors (RSHS) based on liquid crystal devices (LCD). A high-resolution adaptive optics test bed has been developed at NMSU using LCD's extracted from LCD projectors, and it has been used successfully to test both the secondary loop and RSHS concepts. Results indicate that both concepts improve system performance. wave front sensing, wave front control, adaptive optics.
Download or read book Wavefront Sensing Using Nematic Liquid Crystal Spatial Light Modulators written by Hussein Said and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Wavefront Control written by and published by . This book was released on 2003 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Optical Wireless Communication written by Xizheng Ke and published by Springer Nature. This book was released on with total page 1881 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 2nd International Workshop on Adaptive Optics for Industry and Medicine written by Gordon D. Love and published by World Scientific. This book was released on 2000 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains state-of-the-art research papers on adaptive optics used outside the usual astronomical and military applications. It is the first book to cover this new area of research. One of the main industrial applications is in the control of laser wavefronts, and the book contains papers on both intra- and extra-laser cavity correction. The measurement and control of ocular aberrations is the major medical application, and the topics are discussed by leading researchers in the field. Papers on adaptive optics components specifically for non-astronomical systems are also presented. Other topics include laser communications, microscopy and low-cost systems.
Download or read book Liquid Crystals written by Gregory Philip Crawford and published by World Scientific. This book was released on 2007 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Liquid crystals: a unique phase of matter -- 2. Medical displays -- 3. Liquid crystals in spectroscopy, microscopy and hyperspectral imaging -- 4. Liquid crystal biosensors -- 5. Liquid crystak lasers -- 6. Biomimicking with liquid crystals -- 7. Actuators and delivery systems
Download or read book Wavefront Transformation and Laser Beam Control written by Vladimir E. Sherstobitov and published by SPIE-International Society for Optical Engineering. This book was released on 2004 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
Download or read book Adaptive Optics For Industry And Medicine Proceedings Of The 2nd International Workshop written by Gordon D Love and published by World Scientific. This book was released on 1999-12-13 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains state-of-the-art research papers on adaptive optics used outside the usual astronomical and military applications. It is the first book to cover this new area of research. One of the main industrial applications is in the control of laser wavefronts, and the book contains papers on both intra- and extra-laser cavity correction. The measurement and control of ocular aberrations is the major medical application, and the topics are discussed by leading researchers in the field. Papers on adaptive optics components specifically for non-astronomical systems are also presented. Other topics include laser communications, microscopy and low-cost systems.
Download or read book Liquid Crystal Spatial Light Modulators as Computer Controlled Optical Elements written by Thu-Lan Kelly and published by . This book was released on 1997 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigated the suitability of liquid crystal spatial light modulators as versatile computer controlled optical elements. The modulation characteristics were determined empirically and experimentally, and their performance as phase modulators tested in the two diverse applications of computer generated holography and phase aberration correction. Commercial liquid crystal panels from a video projector were used, chosen because of low cost, high resolution, computer controlled input, reconfigurability and ready availability. The panels were found to be more suited to amplitude than to phase modulation. Results show that the devices are versatile enough to be adapted to the two very different applications.
Download or read book Optical Imaging and Metrology written by Wolfgang Osten and published by John Wiley & Sons. This book was released on 2012-09-10 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the state of the art and advances in the field, while also outlining the future potential and development trends of optical imaging and optical metrology, an area of fast growth with numerous applications in nanotechnology and nanophysics. Written by the world's leading experts in the field, it fills the gap in the current literature by bridging the fields of optical imaging and metrology, and is the only up-to-date resource in terms of fundamental knowledge, basic concepts, methodologies, applications, and development trends.
Download or read book Optical Applications of Liquid Crystals written by L Vicari and published by CRC Press. This book was released on 2016-04-19 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been increasing activity in the research and design of optical systems based on liquid crystal (LC) science. Bringing together contributions from leading figures in industry and academia, Optical Applications of Liquid Crystals covers the range of existing applications as well as those in development. Unique in its thorou
