{"title":"Quantum optical control experiment using Mach–Zehnder interferometer and twisted nematic liquid crystals","authors":"Akira Terazawa, Satoshi Yokotsuka, Hiroyuki Okada","doi":"10.35848/1347-4065/ad16be","DOIUrl":null,"url":null,"abstract":"A Mach–Zehnder interferometer with an optical phase control by a twisted nematic (TN) liquid crystal (LC) device was studied. In a typical TN LC device, a change in the optical rotation state of π/2 can be obtained by applying a voltage of about 5 V with a cell thickness of several-micron. The TN cell is inserted into one optical path in the Mach–Zehnder interferometer. We obtained a pattern change when voltage was applied to the LC cell due to the change of the optical interference state. As a result, a change in the number of photons under weak light conditions is observed.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"36 10","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese Journal of Applied Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.35848/1347-4065/ad16be","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
A Mach–Zehnder interferometer with an optical phase control by a twisted nematic (TN) liquid crystal (LC) device was studied. In a typical TN LC device, a change in the optical rotation state of π/2 can be obtained by applying a voltage of about 5 V with a cell thickness of several-micron. The TN cell is inserted into one optical path in the Mach–Zehnder interferometer. We obtained a pattern change when voltage was applied to the LC cell due to the change of the optical interference state. As a result, a change in the number of photons under weak light conditions is observed.
期刊介绍：
The Japanese Journal of Applied Physics (JJAP) is an international journal for the advancement and dissemination of knowledge in all fields of applied physics. JJAP is a sister journal of the Applied Physics Express (APEX) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).
JJAP publishes articles that significantly contribute to the advancements in the applications of physical principles as well as in the understanding of physics in view of particular applications in mind. Subjects covered by JJAP include the following fields:
• Semiconductors, dielectrics, and organic materials
• Photonics, quantum electronics, optics, and spectroscopy
• Spintronics, superconductivity, and strongly correlated materials
• Device physics including quantum information processing
• Physics-based circuits and systems
• Nanoscale science and technology
• Crystal growth, surfaces, interfaces, thin films, and bulk materials
• Plasmas, applied atomic and molecular physics, and applied nuclear physics
• Device processing, fabrication and measurement technologies, and instrumentation
• Cross-disciplinary areas such as bioelectronics/photonics, biosensing, environmental/energy technologies, and MEMS
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