[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"nav-categories":3,"article-scientists-intrigued-by-discovery-of-light-that-can-cast-a-shadow":70},{"data":4},[5,37,57,64],{"name":6,"slug":7,"categories":8},"Productivity","productivity",[9,13,17,21,25,29,33],{"id":10,"title":11,"slug":12},17,"Branding","branding",{"id":14,"title":15,"slug":16},19,"Marketing","marketing",{"id":18,"title":19,"slug":20},20,"Work","work",{"id":22,"title":23,"slug":24},34,"Community","community",{"id":26,"title":27,"slug":28},21,"For newbies","for-newbies",{"id":30,"title":31,"slug":32},24,"Investment","investment",{"id":34,"title":35,"slug":36},22,"Finance","finance",{"name":38,"slug":39,"categories":40},"Tech","tech",[41,45,49,53],{"id":42,"title":43,"slug":44},28,"Technology","technology",{"id":46,"title":47,"slug":48},32,"Artificial Intelligence","artificial-intelligence",{"id":50,"title":51,"slug":52},26,"Security and protection","security-and-protection",{"id":54,"title":55,"slug":56},31,"YouTube Blog","youtube-blog",{"name":58,"slug":59,"categories":60},"News","news",[61],{"id":62,"title":58,"slug":63},18,"quasanews",{"name":65,"slug":66,"categories":67},"Business","business",[68],{"id":69,"title":65,"slug":66},16,{"post":71,"published_news":97,"popular_news":162,"categories":232},{"title":72,"description":73,"meta_title":72,"meta_description":73,"meta_keywords":74,"text":75,"slug":76,"created_at":77,"publish_at":78,"formatted_created_at":79,"category_id":42,"links":80,"view_type":85,"video_url":86,"views":87,"likes":88,"lang":89,"comments_count":90,"category":91},"Scientists Intrigued by Discovery of Light That Can Cast a Shadow","Wait, what?","beam of a laser shadow optical effect object","\u003Cp>Hello!\u003C/p>\n\n\u003Ch4>\u003Cstrong>Shadow and Bone\u003C/strong>\u003C/h4>\n\n\u003Cp>A team of scientists has found that the narrow beam of a laser, under specific conditions, can cast a shadow — a counterintuitive finding that could open the doors for new applications of optical lasers.\u003C/p>\n\n\u003Cp>Conventional knowledge presupposes that if two light beams cross, nothing of note happens. But in an experiment, as detailed in a new paper published in the journal \u003Cem>Optica\u003C/em>, Brookhaven National Laboratory researcher Raphael Abrahao and his team found something strange: a narrow green laser beam, when shot through a larger blue laser beam inside of a ruby crystal, created a shadow.\u003C/p>\n\n\u003Cp>\u003Cpicture class=\"image-align-left\">\u003Csource srcset=\"https://cdn.quasa.io/photos/photo/19_11/line.webp\" type=\"image/webp\">\u003Cimg alt=\"Scientists Intrigued by Discovery of Light That Can Cast a Shadow\" class=\"image-align-left\" height=\"160\" src=\"https://cdn.quasa.io/photos/photo/19_11/line.jpeg\" width=\"240\" />\u003C/picture>"Laser light casting a shadow was previously thought impossible since light usually passes through other light without interacting," said Abrahao in a statement. "Our demonstration of a very counter-intuitive optical effect invites us to reconsider our notion of shadow."\u003C/p>\n\n\u003Ch4>\u003Cstrong>Throwing Shade\u003C/strong>\u003C/h4>\n\n\u003Cp>The concept for the experiment started because of a joke the researchers shared over a meal together.\u003C/p>\n\n\u003Cp>"What started as a funny discussion over lunch led to a conversation on the physics of lasers and the nonlinear optical response of materials," Abrahao explained. "From there, we decided to conduct an experiment to demonstrate the shadow of a laser beam."\u003C/p>\n\n\u003Cp>First, the team shot a high-power green laser through a cube-shaped ruby crystal. They then shot a different blue laser through the same material at a perpendicular angle.\u003C/p>\n\n\u003Cp>Lo and behold, readings from a sensor pointed at the surface the blue laser was illuminating revealed a shadow in the shape of the green laser beam.\u003C/p>\n\n\u003Cp>In simple terms, the green laser acted more like an object, not a beam of light, creating what by all accounts could be described as a shadow.\u003C/p>\n\n\u003Cp>The researchers suggest this is because of "optical nonlinear absorption" occurring inside of the ruby cube. The green light increases the absorption of the blue beam, creating a darker region that casts the shadow.\u003C/p>\n\n\u003Cp>The researchers measured a maximum contrast of around 22 percent, roughly the equivalent of a shadow a tree casts on a sunny day.\u003C/p>\n\n\u003Cp>"This discovery expands our understanding of light-matter interactions and opens up new possibilities for utilizing light in ways we hadn’t considered before," Abrahao explained.\u003C/p>\n\n\u003Cp>"This new finding could prove useful in various applications such as optical switching, devices in which light controls the presence of another light, or technologies that require precise control of light transmission, like high-power lasers," he added.\u003C/p>\n\n\u003Cp>The team is now hoping to demonstrate how a laser beam's intensity can be controlled with the use of another laser, and to explore whether the same effect can be reproduced using other wavelengths and materials.\u003C/p>\n\n\u003Cp>Also read: \u003Ca href=\"https://quasa.io/media/man-attacks-polar-bear-with-bare-hands-to-defend-wife\">Man Attacks Polar Bear With Bare Hands to Defend Wife\u003C/a>\u003C/p>\n\n\u003Cp>Thank you!\u003Cbr />\nJoin us on social media!\u003Cbr />\nSee you! \u003C/p>","scientists-intrigued-by-discovery-of-light-that-can-cast-a-shadow","2024-11-18T12:00:19.000000Z","2024-11-19T07:00:00.000000Z","19.11.2024",{"image":81,"image_webp":82,"thumb":83,"thumb_webp":84},"https://cdn.quasa.io/images/news/3jVLtvb5NBmYoyI6RXiMXljEQQsC3IpHWLR1jXr8.jpg","https://cdn.quasa.io/images/news/3jVLtvb5NBmYoyI6RXiMXljEQQsC3IpHWLR1jXr8.webp","https://cdn.quasa.io/thumbs/news-thumb/images/news/3jVLtvb5NBmYoyI6RXiMXljEQQsC3IpHWLR1jXr8.jpg","https://cdn.quasa.io/thumbs/news-thumb/images/news/3jVLtvb5NBmYoyI6RXiMXljEQQsC3IpHWLR1jXr8.webp","small",null,1450,4,"en",0,{"id":42,"title":43,"slug":44,"meta_title":92,"meta_description":93,"meta_keywords":94,"deleted_at":86,"created_at":95,"updated_at":96,"lang":89},"Quasa media blog about growth hacking in Tech","All the most interesting and useful about technologies. Exclusive articles from technologies you won't find anywhere else.","Technology, tech, business, ai, gadget, gadgets, life hacks","2023-03-23T08:15:32.000000Z","2024-08-25T15:37:57.000000Z",[98,113,125,138,150],{"title":99,"description":100,"slug":101,"created_at":102,"publish_at":103,"formatted_created_at":104,"category":105,"links":106,"view_type":85,"video_url":86,"views":111,"likes":90,"lang":89,"comments_count":90,"is_pinned":112},"Twitter Dev Builds “Stukach-Claw” — An AI Snitch Bot That’s Already Reported 4,250 People to the IRS for Tax Jokes","A crypto trader and developer known as @camolNFT has gone viral after revealing he built an autonomous AI agent called OpenClaw (affectionately dubbed Stukach-Claw by Russian-speaking users) that actively hunts for “jokes” about tax evasion on social media and automatically files whistleblower reports with the IRS.","twitter-dev-builds-stukach-claw-an-ai-snitch-bot-that-s-already-reported-4-250-people-to-the-irs-for-tax-jokes","2026-04-17T12:09:57.000000Z","2026-04-20T06:06:00.000000Z","20.04.2026",{"title":19,"slug":20},{"image":107,"image_webp":108,"thumb":109,"thumb_webp":110},"https://cdn.quasa.io/images/news/Bknfo3h65dH5eqJ5coCdgVsAxMYJsDIOPyZplmaX.jpg","https://cdn.quasa.io/images/news/Bknfo3h65dH5eqJ5coCdgVsAxMYJsDIOPyZplmaX.webp","https://cdn.quasa.io/thumbs/news-thumb/images/news/Bknfo3h65dH5eqJ5coCdgVsAxMYJsDIOPyZplmaX.jpg","https://cdn.quasa.io/thumbs/news-thumb/images/news/Bknfo3h65dH5eqJ5coCdgVsAxMYJsDIOPyZplmaX.webp",9,false,{"title":114,"description":115,"slug":116,"created_at":117,"publish_at":118,"formatted_created_at":104,"category":119,"links":120,"view_type":85,"video_url":86,"views":34,"likes":90,"lang":89,"comments_count":90,"is_pinned":112},"Baidu Drops ERNIE-Image: A Compact 8B Open-Source Text-to-Image Model That Tops the Charts","Baidu has just released ERNIE-Image 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Email Services Are Feeling It","On April 17, 2026, Cloudflare quietly turned a long-standing dream into reality: it moved Email Service into public beta and added full Email Sending alongside the years-old Email 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word that means an enterpriser. Enterprisers are people who undertake a business or enterprise with the chance of earning profits or suffering from loss.","the-anatomy-of-an-entrepreneur","2021-08-04T15:18:21.000000Z","2025-12-14T06:09:00.000000Z","14.12.2025",{"title":65,"slug":66},{"image":172,"image_webp":86,"thumb":173,"thumb_webp":173},"https://cdn.quasa.io/images/news/mVsXPTMuHZuI7UXCsENgL1Qwp1uSOf7Rz3uVPMfm.webp","https://cdn.quasa.io/thumbs/news-thumb/images/news/mVsXPTMuHZuI7UXCsENgL1Qwp1uSOf7Rz3uVPMfm.webp",70886,2,{"title":177,"description":178,"slug":179,"created_at":180,"publish_at":181,"formatted_created_at":182,"category":183,"links":184,"view_type":189,"video_url":86,"views":190,"likes":88,"lang":89,"comments_count":90,"is_pinned":112},"Advertising on QUASA","QUASA MEDIA is read by more than 400 thousand people a month. We offer to place your article, add a link or order the writing of an article for publication.","advertising-on-quasa","2022-07-06T07:33:02.000000Z","2025-12-15T17:33:02.000000Z","15.12.2025",{"title":58,"slug":63},{"image":185,"image_webp":186,"thumb":187,"thumb_webp":188},"https://cdn.quasa.io/images/news/45SvmdsTQbiyc3nxgbyHY1mpVbisYyub2BCHjqBL.jpg","https://cdn.quasa.io/images/news/45SvmdsTQbiyc3nxgbyHY1mpVbisYyub2BCHjqBL.webp","https://cdn.quasa.io/thumbs/news-thumb/images/news/45SvmdsTQbiyc3nxgbyHY1mpVbisYyub2BCHjqBL.jpg","https://cdn.quasa.io/thumbs/news-thumb/images/news/45SvmdsTQbiyc3nxgbyHY1mpVbisYyub2BCHjqBL.webp","large",70651,{"title":192,"description":193,"slug":194,"created_at":195,"publish_at":196,"formatted_created_at":197,"category":198,"links":199,"view_type":85,"video_url":86,"views":202,"likes":88,"lang":89,"comments_count":90,"is_pinned":112},"What is a Startup?","A startup is not a new company, not a tech company, nor a new tech company. You can be a new tech company, if your goal is not to grow high and fast; then, you are not a startup. ","what-is-a-startup","2021-08-04T12:05:17.000000Z","2025-12-17T13:02:00.000000Z","17.12.2025",{"title":65,"slug":66},{"image":200,"image_webp":86,"thumb":201,"thumb_webp":201},"https://cdn.quasa.io/images/news/EOsQhSW3VXyG7a6NPdE1oZd00xfJXe3bjY5aJGb7.webp","https://cdn.quasa.io/thumbs/news-thumb/images/news/EOsQhSW3VXyG7a6NPdE1oZd00xfJXe3bjY5aJGb7.webp",68281,{"title":204,"description":205,"slug":206,"created_at":207,"publish_at":208,"formatted_created_at":209,"category":210,"links":211,"view_type":85,"video_url":86,"views":216,"likes":175,"lang":89,"comments_count":217,"is_pinned":112},"Top 5 Tips to Make More Money as a Content Creator","Content creators are one of the most desired job titles right now. Who wouldn’t want to earn a living online?","top-5-tips-to-make-more-money-as-a-content-creator","2022-01-17T17:31:51.000000Z","2026-01-17T11:30:00.000000Z","17.01.2026",{"title":19,"slug":20},{"image":212,"image_webp":213,"thumb":214,"thumb_webp":215},"https://cdn.quasa.io/images/news/gP8kiumBPpJmQv6SMieXiX1tDetx43VwFfO1P4Ca.jpg","https://cdn.quasa.io/images/news/gP8kiumBPpJmQv6SMieXiX1tDetx43VwFfO1P4Ca.webp","https://cdn.quasa.io/thumbs/news-thumb/images/news/gP8kiumBPpJmQv6SMieXiX1tDetx43VwFfO1P4Ca.jpg","https://cdn.quasa.io/thumbs/news-thumb/images/news/gP8kiumBPpJmQv6SMieXiX1tDetx43VwFfO1P4Ca.webp",42252,1,{"title":219,"description":220,"slug":221,"created_at":222,"publish_at":223,"formatted_created_at":224,"category":225,"links":226,"view_type":189,"video_url":86,"views":231,"likes":175,"lang":89,"comments_count":90,"is_pinned":112},"8 Logo Design Tips for Small Businesses","Your logo tells the story of your business and the values you stand for.","8-logo-design-tips-for-small-businesses","2021-12-04T21:59:52.000000Z","2025-05-05T03:30:00.000000Z","05.05.2025",{"title":15,"slug":16},{"image":227,"image_webp":228,"thumb":229,"thumb_webp":230},"https://cdn.quasa.io/images/news/Wbx2NtS1CnTupgoQbpFMGspJ5jm4uob2hDOq33r0.jpg","https://cdn.quasa.io/images/news/Wbx2NtS1CnTupgoQbpFMGspJ5jm4uob2hDOq33r0.webp","https://cdn.quasa.io/thumbs/news-thumb/images/news/Wbx2NtS1CnTupgoQbpFMGspJ5jm4uob2hDOq33r0.jpg","https://cdn.quasa.io/thumbs/news-thumb/images/news/Wbx2NtS1CnTupgoQbpFMGspJ5jm4uob2hDOq33r0.webp",41346,[233,234,235,236,237,238,239,240,241,242,243,244,245],{"title":23,"slug":24},{"title":47,"slug":48},{"title":55,"slug":56},{"title":43,"slug":44},{"title":51,"slug":52},{"title":31,"slug":32},{"title":35,"slug":36},{"title":27,"slug":28},{"title":19,"slug":20},{"title":15,"slug":16},{"title":58,"slug":63},{"title":11,"slug":12},{"title":65,"slug":66}]