Low-cost measurements of the “resonant” wavelengths reflected by a compact disc under skimming light rays
IF 0.6
4区 教育学
Q4 EDUCATION, SCIENTIFIC DISCIPLINES
引用次数: 0
Abstract
Abstract We demonstrate the construction and utilization of an affordable apparatus using readily available materials to accurately measure in a quantitative manner the wavelengths reflected by a compact disc (CD) under skimming light rays. In fact, only a limited number of wavelengths can be revealed when light rays from a white lamp are directed at a CD (or a DVD) in a manner that specifically selects the rays that graze the surface of the horizontally held disc. We compare the results with the ones obtained with a commercial spectrometer, the results are in good agreement among them and with the theoretical predictions.低成本测量在掠光光线下由光盘反射的“共振”波长
摘要:我们演示了一种经济实惠的装置的构建和使用，使用现成的材料，以定量的方式精确测量激光光盘(CD)在掠光光线下反射的波长。事实上，当白灯的光线以一种特定的方式照射在CD(或DVD)上时，只有有限的波长可以显示出来，这种方式特别选择了擦过水平持有的光盘表面的光线。并与商用光谱仪的测量结果进行了比较，结果与理论预测基本一致。
本文章由计算机程序翻译，如有差异，请以英文原文为准。
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来源期刊
European Journal of Physics
物理-物理：综合
CiteScore
1.70
自引率
28.60%
发文量
128
审稿时长
3-8 weeks
期刊介绍：
European Journal of Physics is a journal of the European Physical Society and its primary mission is to assist in maintaining and improving the standard of taught physics in universities and other institutes of higher education.
Authors submitting articles must indicate the usefulness of their material to physics education and make clear the level of readership (undergraduate or graduate) for which the article is intended. Submissions that omit this information or which, in the publisher''s opinion, do not contribute to the above mission will not be considered for publication.
To this end, we welcome articles that provide original insights and aim to enhance learning in one or more areas of physics. They should normally include at least one of the following:
Explanations of how contemporary research can inform the understanding of physics at university level: for example, a survey of a research field at a level accessible to students, explaining how it illustrates some general principles.
Original insights into the derivation of results. These should be of some general interest, consisting of more than corrections to textbooks.
Descriptions of novel laboratory exercises illustrating new techniques of general interest. Those based on relatively inexpensive equipment are especially welcome.
Articles of a scholarly or reflective nature that are aimed to be of interest to, and at a level appropriate for, physics students or recent graduates.
Descriptions of successful and original student projects, experimental, theoretical or computational.
Discussions of the history, philosophy and epistemology of physics, at a level accessible to physics students and teachers.
Reports of new developments in physics curricula and the techniques for teaching physics.
Physics Education Research reports: articles that provide original experimental and/or theoretical research contributions that directly relate to the teaching and learning of university-level physics.
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