NATIONAL BUREAU OF STANDARDS The National Bureau of Standards' was established by an act of Congress on March 3, 1901. The Bureau's overall goal is to strengthen and advance the Nation's science and technology and facilitate their effective application for public benefit. To this end, the Bureau conducts research and provides: (1) a basis for the Nation's physical measurement system, (2) scientific and technological services for industry and government, (3) a technical basis for equity in trade, and (4) technical services to promote public safety. The Bureau's technical work is performed by the National Measurement Laboratory, the National Engineering Laboratory, and the Institute for Computer Sciences and Technology. THE NATIONAL MEASUREMENT LABORATORY provides the national system of physical and chemical and materials measurement; coordinates the system with measurement systems of other nations and furnishes essential services leading to accurate and uniform physical and chemical measurement throughout the Nation's scientific community, industry, and commerce; conducts materials research leading to improved methods of measurement, standards, and data on the properties of materials needed by industry, commerce, educational institutions, and Government; provides advisory and research services to other Government agencies; develops, produces, and distributes Standard Reference Materials; and provides calibration services. The Laboratory consists of the following centers: Absolute Physical Quantities? Radiation Research Thermodynamics and Analytical Chemistry Materials Science. THE NATIONAL ENGINEERING LABORATORY provides technology and technical services to the public and private sectors to address national needs and to solve national problems; conducts research in engineering and applied science in support of these efforts; builds and maintains competence in the necessary disciplines required to carry out this research and technical service; develops engineering data and measurement capabilities; provides engineering measurement traceability services; develops test methods and proposes engineering standards and code changes; develops and proposes new engineering practices; and develops and improves mechanisms to transfer results of its research to the ultimate user. The Laboratory consists of the following centers: THE INSTITUTE FOR COMPUTER SCIENCES AND TECHNOLOGY conducts research and provides scientific and technical services to aid Federal agencies in the selection, acquisition, application, and use of computer technology to improve effectiveness and economy in Government operations in accordance with Public Law 89-306 (40 U.S.C. 759), relevant Executive Orders, and other directives; carries out this mission by managing the Federal Information Processing Standards Program, developing Federal ADP standards guidelines, and managing Federal participation in ADP voluntary standardization activities; provides scientific and technological advisory services and assistance to Federal agencies; and provides the technical foundation for computer-related policies of the Federal Government. The Institute consists of the following centers: Programming Science and Technology - Computer Systems Engineering. 'Headquarters and Laboratories at Gaithersburg, MD, unless otherwise noted; mailing address Washington, DC 20234. 'Some divisions within the center are located at Boulder, CO 80303. Design of a Reflection Apparatus for U.S. DEPARTMENT OF COMMERCE, Juanita M. Kreps, Secretary Jordan J. Baruch, Assistant Secretary for Science and Technology Issued July 1979 NATIONAL BUREAU OF STANDARDS TECHNICAL NOTE 1015 Nat. Bur. Stand. (U.S.), Tech. Note 1015, 124 pages (July 1979) U.S. GOVERNMENT PRINTING OFFICE For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 Stock No. 003-003-02103-2 Price $4.00 (Add 25 percent additional for other than U.S. mailing) TABLE OF CONTENTS AN OVERVIEW OF THE BASIC APPARATUS------ PRELIMINARY ANALYSIS FOR THE THEORY ACCOUNTING FOR FIRST-ORDER ASTIGMATISM-- 3.1 The Local Coordinates for the Eleven Surfaces of the Apparatus------- 3.2 Some Definitions of Terms for Each Surface Used by the Computer Program 3.3 Surface Phase and Amplitude Modulation Effects---- 3.4 The Development of the Practical Transfer Functions Between Surfaces--- 3.5 Application of the Formulas in the Apparatus under Design--- 3.5.1 Assume a Gaussian Beam Undulating through the Apparatus---- 3.5.2 What Happens When the Initial Beam Is a Spot of Uniform The Logic Flow of the Computer Program-- 4.2 The Detailed Listing of the Computer Program-- 4.3 Sample Output to Illustrate the Program-- 5.1 Selecting Some Initial Control Values- The Convergence Criteria for the Rest of the Control Values- Effects of Wavelength Change to the Base Field at Surface 11-- 5.4.2 Effects of 1 mm Changes in Positions to Base Field at Surface 11 84 84 6.4.1 Effect of Wavelength Change to the Base Field at Surface 11----- 6.4.2 Effects of 1 mm Changes in Positions to Base Field at Surface 11 6.5 Alignment of Apparatus Using 0.6328 μm-- 6.6 High Irradiance Constraints in the Design for 1.06 μm Wavelength------- 85 7. PUTTING THE RESULTS OF PREVIOUS AND NEW SIMULATIONS TOGETHER TO UNDERSTAND THE APPARATUS--- 7.1 Key Features of Sections 5 and 6----- |