{"title":"Character display unit using a binary phase hologram array and a LC-SLM","authors":"Bong-Gyun Kang, Nam Kim, H. Suh, Duck-Hee Lee","doi":"10.1364/domo.1998.dtud.14","DOIUrl":"https://doi.org/10.1364/domo.1998.dtud.14","url":null,"abstract":"We have demonstrated the character display unit that combines the dynamic property of the LCSLM with the high efficiency property of the phase hologram fabricated by photolithography.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133486957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Beam-Pointing Stabilization and Ladar Heterodyne Mixing Efficiency Increase Using a Liquid Crystal Phased Array Device","authors":"M. Missey, V. Dominic, E. Watson","doi":"10.1364/domo.1996.jtuc.4","DOIUrl":"https://doi.org/10.1364/domo.1996.jtuc.4","url":null,"abstract":"Laser radar imaging systems often require the ability to accurately point the transmitted laser beam as well as the ability to mix the return light with a single mode receiver. An addressable liquid crystal phased array provides the precise spatially dependent phase shifts needed to achieve such beam stability and increased ladar heterodyne mixing efficiency. The device consists of a layer of nematic liquid crystals sandwiched between two substrates. One substrate is uniformly grounded, while the other is etched with narrow, closely spaced individual 1-D electrodes. The liquid crystals underneath a given electrode are rotated by applying an appropriate voltage, thus generating a birefringent phase delay. Two of these writable one-dimensional gratings can be cascaded to implement two dimensional phase profiles.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125900935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High efficiency transmission diffractive grating and grating lens of the Megajoule laser final optic assembly","authors":"A. Adolf, Arnaud Dulac, E. Journot","doi":"10.1364/domo.1998.dthd.2","DOIUrl":"https://doi.org/10.1364/domo.1998.dthd.2","url":null,"abstract":"The French Megajoule laser facility (LMJ) is designed to provide 1,8MJ/600TW of UV light on an X-ray drive target. This performance requirements are given by inertial confinement fusion ignition mission. The LMJ laser will have 30 bundles of 4x2 IR phosphate-glass amplifier chains of 40 cm square aperture. In the target area this bundles are split into 2x2 bundles which are called ≪ quads ≫. These quads are directed around the target chamber, converted into UV light and focused on the target.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129620358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Völkel, H. P. Herzig, P. Nussbaum, W. Singer, R. Dändliker
{"title":"Microlens Lithography","authors":"R. Völkel, H. P. Herzig, P. Nussbaum, W. Singer, R. Dändliker","doi":"10.1364/domo.1996.dwb.4","DOIUrl":"https://doi.org/10.1364/domo.1996.dwb.4","url":null,"abstract":"The future demands for flat panel display (FPD) manufacturing is a resolution of 3-5 μm for large substrates of 550 × 650 mm2 size. Standard lithographic techniques, like wafer stepping or proximity printing can be used. Unfortunately, these methods have some severe drawbacks which significantly increase the fabrication costs. Using a wafer stepper, the small printing area will cause numerous exposure steps. The stepping has to be very accurate, because stitching errors can be easily seen in the display pattern. Using a proximity printer, the substrate is set some 20-50 μm behind the mask to achieve a resolution of 3-5 μm. This is not an easy task for large substrates. The costs for these highly planar substrates are immense. A direct contact may easily damage the expensive photomask.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129208758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical measurement of the global and local geometry of grating structures","authors":"P. Blattner, S. Traut, H. Herzig","doi":"10.1364/domo.1998.dtha.2","DOIUrl":"https://doi.org/10.1364/domo.1998.dtha.2","url":null,"abstract":"Advancement in the areas of lithography and holography have enabled the realization of very fine surface-relief grating structures in the nanometer to micrometer range. The characterization of such structures is of obvious importance. Different methods exist to determine the optical properties of gratings. The dispersion properties are typically analysed by spectrometers. The wavefront quality is measured by commercially available interferometers. The diffraction efficiency can be determined by scanning the far-field intensity distribution.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127903753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Scherer, A. Yariv, Y. Fainman, E. Yablonovitch, B. D’Urso, O. Painter, C. Cheng
{"title":"Fabrication of Functional Optical Structures Based On Photonic Crystals","authors":"A. Scherer, A. Yariv, Y. Fainman, E. Yablonovitch, B. D’Urso, O. Painter, C. Cheng","doi":"10.1364/domo.1998.dtub.1","DOIUrl":"https://doi.org/10.1364/domo.1998.dtub.1","url":null,"abstract":"We have developed techniques to fabricate photonic crystals within functional semiconductor materials to reflect, polarise, and filter light. These manufacturable structures have now allowed us to define high-contrast polarizing beam-splitters and ultra-small optical cavities, and hold the promise of many exciting new applications. Polarizers with over 820:1 TE/TM transmission ratios have been fabricated by microfabricating gratings through a 1-D multilayer Bragg mirror, thereby forming an in-plane 2-D photonic bandgap crystal. Ultra-small optical cavities have also been defined by perforating very thin InGaAsP/InGaAs membranes with 2-D photonic crystals to define in-plane optical resonators. Here, we will describe the fabrication methods and the observed performance of these devices.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117237946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design of diffractive optical elementrs for mode shaping within custom laser resonators","authors":"I. Barton, M. Taghizadeh","doi":"10.1364/domo.1998.dthd.3","DOIUrl":"https://doi.org/10.1364/domo.1998.dthd.3","url":null,"abstract":"Diffractive optical elements (DOEs) have been demonstrated that alter the fundamental mode of a laser resonator to a desired profile, notably by Leger et al.1,2 These, so-called mode-selecting elements (MSEs), usually operate within a Fabry-Pérot laser cavity by replacing one, or both, of the mirrors with a reflecting DOE. They have been mainly applied in solid-state laser systems, e.g., Nd:YAG. The advantages of these customised cavities include superior discrimination against higher-order modes,3 enabling single-mode operation and the inherently useful properties of the fundamental mode profiles that they can generate, e.g., flattops. These properties are much in demand for many applications including material processing.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124446736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Boundary Element Method for Analysis and Design of One-Dimensional Diffractive Optical Elements","authors":"D. Prather, M. Mirotznik, J. Mait","doi":"10.1364/domo.1996.dma.3","DOIUrl":"https://doi.org/10.1364/domo.1996.dma.3","url":null,"abstract":"The boundary element method (BEM) is a numerical technique to solve the boundary integral for the vector analysis of diffraction.1,2 Boundary integral methods model the interaction between an incident field and a diffractive optical element (DOE) using distributions induced on the surface of the DOE by the incident field. For a conductor the surface distribution is a current and, for a dielectric, it is a polarization field. Re-radiation from the surface distribution, in turn, generates a diffracted field. The objective of the BEM is the determination of the surface distribution given the incident field and DOE.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124002358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Super-resolving filters as diffractive optical elements","authors":"C. Sheppard","doi":"10.1364/domo.1998.dtua.5","DOIUrl":"https://doi.org/10.1364/domo.1998.dtua.5","url":null,"abstract":"Super-resolving filters have potential applications in the areas of optical data storage,1-3 lithography4 and microscopy.5-6 In many applications the behaviour of the filter in the presence of defocus is important. For example, for lithography a large depth of focus is desirable, whereas in microscopy high axial resolution is often required. The effect of particular filters on the three-dimensional focal distribution has therefore been studied.7-9 It is found that filters which are super-resolving in the transverse direction can be either super-resolving or apodizing in the axial direction. Indeed, a minimum in intensity is often found along the axis at the focal point. For amplitude filters, simple design rules for the three-dimensional focusing properties have been proposed.7","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"28 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130803754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Imaging in planar optics: system design for oblique deflection angles","authors":"M. Testorf, J. Jahns","doi":"10.1364/domo.1996.dthb.4","DOIUrl":"https://doi.org/10.1364/domo.1996.dthb.4","url":null,"abstract":"Planar optics has been successfully demonstrated to be useful for the integration of free space optical systems1. In this context, planar integration means the arrangement of optical elements on the surface of a thick transparent substrate. The light signal travels within the substrate along a folded zig-zag path, reflected at its surfaces. Since planar optics was first proposed, various applications has been demonstrated like array generation2 or imaging3.","PeriodicalId":301804,"journal":{"name":"Diffractive Optics and Micro-Optics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131236574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}