Fluoride-laser microfabrication of diffractive optical elements.

by Mi Li Ng

Written in English
Published: Pages: 69 Downloads: 327
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The 157nm F2-laser drives strong and precisely controllable interactions with fused silica, the most widely used material for bulk optics, optical fibers, and planar optical circuits. A Diffractive Optical Element (DOE) changes wavefronts by redirecting segmented beamlets through phase control. DOE applications include optical computing, laser machining, optical communications, and biological sensors. Precise excisions of 10--30 nm depth are available for the generation of efficient DOEs for the visible and ultraviolet spectrum. F2-laser radiation was applied with beam homogenization optics and high-precision computer-controlled motion stages to shape up to 16-level 256 x 256 pixels DOE devices in bulk glasses, with distinguishable level-to-level spacing of ∼100 nm and surface roughness of ∼3 nm. The 1 st order diffraction efficiency was ∼36--42%. The farfield pattern when illuminated with a HeNe laser agreed well with iterative Fourier Transform algorithm simulations. Future improvements in the laser micromachining process and possible directions are also offered.

The Physical Object
Pagination69 leaves.
Number of Pages69
ID Numbers
Open LibraryOL19512547M
ISBN 100612953548

Using Diffractive Optical Elements DOEs for beam shaping – fundamentals and applications. Shlomit Katz. Search for more papers by this author. Natan Kaplan. E-mail address: [email protected] + 8 Holo/Or, 13B Einstein Street, Science Park Ness Ziona, by: 1. Microoptoelectromechanical systems (MOEMS), also written as micro-opto-electro-mechanical systems or micro-optoelectromechanical systems, also known as optical microelectromechanical systems or optical MEMS, are not a special class of microelectromechanical systems (MEMS) but rather the combination of MEMS merged with micro-optics; this involves sensing or manipulating optical signals . Diffractive optical elements with square concentric rings of equal width Javier Alda1, Luis Miguel Sanchez-Brea2, Francisco Javier Salgado-Remacha2, and José María Rico-García2,3 Applied Optics Complutense Group, Optics Department, University Complutense of Madrid, 1 School of Optics. Ave. Arcos del Jalón, , Madrid, SpainFile Size: KB.   Recent advancements in microfabrication technologies and the development of powerful simulation tools have led to a significant expansion of diffractive optics and diffractive optical components. Instrument developers can choose from a broad range of diffractive optics elements to complement refractive Author: Rüdiger Paschotta.

Get this from a library! Field guide to diffractive optics. [Yakov G Soskind; SPIE (Society)] -- Recent advancements in microfabrication technologies and the development of powerful simulation tools have led to a significant expansion of diffractive optics and diffractive optical components. On the basis of application, the diffractive optical elements market is segmented into medical, laser material processing, and others. In the region wise study, the diffractive optical elements market has been segmented into North America, Europe, Asia Pacific, Middle East & Africa, and South America. OEM Diffractive Optical Elements to project lines, parallel lines, crosses, circles, reticles, or grids. Laserglow's OEM Diffractive Optical Elements (DOEs) are ideal for any application where you require a highly visible pattern projected onto a surface. These DOEs are available in a variety of patterns including lines, crosses, parallel lines.   BEDFORD, N.H., Ap — Laser Components USA Inc. has announced diffractive optical elements (DOEs) that allow laser beams to be split, bundled, or formed into almost any shape for multiple applications. The food industry can use these devices for laser perforation by applying microholes into packaging for fruit or vegetables that allow the food to breathe, thus .

Multi-Order Diffractive Optics Designed to bring multiple wavelengths to a common focus with high efficiency. A conventional diffractive optic lens utilizes a single diffraction order in which the optical power of the lens is directly proportional to the wavelength of light (see Fig. 1(a)). ️ Off-axis holography by additive microfabrication ⬅️ Using Nanoscribe’s microfabrication technology, scientists developed a new type of diffractive optical elements that enable highly-efficient holographic projections free of both zero diffraction order and shadowing effects.5/5(8). The first example is a optical position sensing system for rotating parts. Progress on fabricating similar systems by flip-chip bonding techniques is then discussed. The second example is a chemical sensing/analysis system which uses a miniature fluorescence detection module that is based on surface-mounted VCSELs and diffractive optical elements. The deep interconnection between micro/nanooptical components and related fabrication technologies-and the constant changes in this ever-evolving field-means that successful design depends on the engineer's ability to accommodate cutting-edge theoretical developments in fabrication techniques and experimental nting the state of the art in fabrication processes, Microoptics.

Fluoride-laser microfabrication of diffractive optical elements. by Mi Li Ng Download PDF EPUB FB2

Elements that work on the principles of diffraction, or diffractive optical elements (DOEs), can successfully replace refractive elements used in different systems. This is because DOEs are capable of manipulating light in ways not possible by conventional refractive optical elements.

Summary. Diffractive optical elements (DOEs) manipulate light by Fluoride-laser microfabrication of diffractive optical elements. book, rather than by refraction with lenses or reflection with mirrors.

DOEs often consist of a thin piece of transparent material with an opaque or etched pattern that diffracts light into the desired form. This chapter briefly discusses some important applications of DOEs. It describes gratings for bending light and for separating colors or. Computer design of diffractive optics provides an authoritative guide to the principles and applications of computer-designed diffractive optics.

The theoretical aspects underpinning diffractive optics are initially explored, including the main equations in diffraction theory and diffractive optical transformations.

Mi Li Ng has written: 'Fluoride-laser microfabrication of diffractive optical elements' Asked in Authors, Poets, and Playwrights What has the author Fae Myenne Ng written.

Design and Fabrication of Diffractive Optical Elements with MATLAB It provides the reader with hands-on training and includes well-commented MATLAB codes.

Topics covered include diffractive optics, MATLAB, holography, microfabrication, and multifunctional diffractive optical elements. We describe the microfabrication of a multilevel diffractive optical element (DOE) onto a microelectromechanical system (MEMS) module as a key element in an integrated compact optical-MEMS laser scanner.

The DOE is a four-level off-axis microlens fabricated onto a movable polysilicon shuttle. The microlens is patterned by electron beam lithography and etched by reactive-ion-beam Cited by: 7.

Optical elements are not only limited in refractive lenses, prisms, and mirrors. New optical components such as micro-lens arrays, holographic lenses, and diffractive elements are also used in various optoelectronic devices, so that optoelectronic devices and their components are smaller, in flat array and feasible : Xiujian Li, Zhengzheng Shao, Mengjun Zhu, Junbo Yang.

Micro- and Diffractive Optical Elements. In book: Fundamentals of Optical Computing Technology, pp The physics of microfabrication / Ivor Brodie and Julius J.

Muray. Recent advancements in microfabrication technologies and the development of powerful simulation tools have led to a significant expansion of diffractive optics and diffractive optical components. Instrument developers can choose from a broad range of diffractive optics elements to complement refractive and reflective components in achieving a.

Various issues of creation of diffractive optical elements transforming one laser beam with small divergence to a matrix of converging beams with a diffraction size of focused spots in the plane. This book consists of 5 chapters; the first of which describes the Fourier Modal Method and some of its applications, including optical information processing, creation of plasmon optics, the contact lithography systems and the systems for optical trapping and manipulation of nanoscale objects.

Diffractive optical element: generic term • Fresnel lens: Scale of zones and lack of organized phasing • Kinoform: Phased Fresnel lens. Phase modulation from surface relief • Holographic optical element: Produced by interfering two or more beams • Binary optics: Made.

The effect of antireflection coatings on diffraction efficiency of diffractive optical elements (DOEs) was studied and the mathematical model of diffraction efficiency affected by antireflection coatings for DOEs is presented.

We found antireflection coatings can cause a significant reduction on diffraction efficiency at the designed, or the central by: 4. We're upgrading the ACM DL, and would like your input. Please sign up to review new features, functionality and page by: Diffractive Optical Elements.

Diffractive optical elements, DOEs, were designed for applications with lasers and high-power lasers. Used as multi-spot beam splitters, in beam shaping, and beam profile modification, such elements offer endless possibilities in different application fields.

Diffractive Optical Elements for Beam Shaping. Recent advancements in microfabrication technologies and the development of powerful simulation tools have led to a significant expansion of diffractive optics and diffractive optical components.

Instrument developers can choose from a broad range of diffractive optics elements to complement refractive and reflective components in achieving a desired control of the optical field/5(2).

Kowalik A, Jaroszewicz Z, Gora K () Diffractive optical elements obtained using electron-beam writer and reactive ion etching. Proc SPIE – CrossRef Google Scholar Meier A () Diamond turning of diffractive microstructures. Replication technologies such as embossing, moulding and casting are highly attractive for the fabrication of surface relief Diffractive Optical Element (DOE) microstructures.

They have very high r. A diffractive optical element (DOE) is an optical component with a microstructured surface. When a DOE is placed in front of a light beam it reshapes the light beam into a pattern. The pattern of the light, diffracted by a grating, depends on the structure of the elements.

These patterns can be tailored to the application requirements. Holographic optical elements (HOEs) are holograms that duplicate the performance of optical components, such as lenses.

In this application, a hologram is used to transform the properties of a wavefront, just as some other optical component would.

Diffractive optical elements (DOEs) shape and split laser beams in an energy-efficient can implement a wide range of applications with minimal light loss – examples of diffractive microoptics can be found in production facilities for laser material processing, in medical laser treatments and diagnostic instruments, in areas such as lighting, printing technologies and lithography Category: Precision Optical Components.

We present the design and fabrication of diffractive optical elements for optical identification purposes.

Two methods for optical identification are discussed. In this feasibility study, approaches using one and two binary reflective diffraction gratings are demonstrated. The diffraction orders of the grating/gratings are used as a binary code for optical identification.

The NOOK Book (eBook) of the Introduction to Microfabrication by Sami Franssila at Barnes & Noble. FREE Shipping on $35 or more. The opening chapters on the physics of light are complemented by chapters on refractive and diffractive optical elements. The internationally renowned View Product [ x ] : Sami Franssila.

Journal Article: Fabrication of Diffractive Optical Elements for an Integrated Compact Optical-MEMS Laser Scanner. Parallel laser micromachining based on diffractive optical elements with dispersion compensated femtosecond pulses S. Torres-Peiró, 1,2 J. González-Ausejo, O.

Mendoza-Yero,1,2 G. Mínguez-Vega,1,2,* P. Andrés,3 and J. Lancis1,2 1INIT - Institut de Noves Tecnologies de la Imatge, Universitat Jaume I, Castelló, Spain 2GROC•UJI - Grup de Recerca d’Òptica, Dept. de Física, Universitat File Size: 1MB.

Diffractive Optics and Optical Microsystems It seems that you're in USA. We have a dedicated site for USA Microfabrication Technologies for Integrated Optical Devices.

Pages Fabrication of Diffractive Optical Elements by Electron Beam Lithography. with complicated optical systems. Moreover, compared to refractive optical elements, DOEs are typically much thinner and lighter, making them an attractive replacement in a number of applications.

HOLOEYE’s Diffractive Optical Elements (DOEs) Off-the-shelf DOEs: Mounted versions are well suitable for lab-bench proof-of-concept Size: KB. In order to use BBs for material modification [20, 21], it is preferable to have simple optical elements, which can be directly inserted in the path of a laser's Gaussian-like beam to generate BBs.

In this paper, we demonstrate a technique that uses two diffractive optical elements (DOEs).Cited by: 7. Direct laser writing is an established tool for the flexible, fast, and cost efficient fabrication of diffractive optical elements. In general, the system consists of a writing beam (nm) that is focused onto a substrate which is coated with photoresist.

Prof. Guangya Zhou received the and Ph.D. degrees in optical engineering from Zhejiang University, Hangzhou, China. His PhD thesis was on micro optics and diffractive optics.

He was a post-doctoral fellow at state key laboratory of thin film and microfabrication technology at Shanghai Jiao Tong University conducting research on optical MEMS for telecommunication : CRC Press. KEYWORDS: Microscopes, Optical filters, Deep ultraviolet, Spectroscopy, Ultraviolet radiation, Fiber lasers, Raman spectroscopy, Head, Fiber couplers, Fiber coupled lasers Read Abstract + Scientific experiments on mineral and biological samples with Raman excitation below nm show a wealth of scientific information.Jabbour, Toufic, "Design, Analysis, And Optimization Of Diffractive Optical Elements Under High Numerical Aperture Focusing" ().

Electronic Theses and Dissertations, Masthead Logo Link. Masthead Logo Link. STARS Electromagnetics and Cited by: 1.Microfabrication on a curved surface using 3D microlens array projection.

Madou M J Fundamentals of Microfabrication 2nd edn (London: Taylor and Francis) Lu Z, Li F, Zhao J and Weng Z Lithographic fabrication of large diffractive optical elements on a concave lens surface Opt. Express 10 Crossref PubMedCited by: