148纳米，重大突破！核光钟最后一个核心瓶颈，我国抢先攻克

\u003cdiv class=\"rich_media_content\"\u003e\u003c!--NO_AD_ERROR_2--\u003e\u003cp data-pm-slice=\"0 0 []\" style=\"margin-bottom: 20px; margin-top: 5px; text-align: justify\"\u003e2�日，清华大学副教授、北京量子信息科学研究院兼聘研究员丁世谦团队，在连续波\u003c!--VERTICAL_CARD_BEGIN_0--\u003e真空紫外光源\u003c!--VERTICAL_CARD_END_0--\u003e方面取得重大突破，成果发表在《自然》上。\u003c!--NO_AD_0--\u003e\u003c!--EOP_0--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_0--\u003e\n\u003cp style=\"margin-bottom: 20px; margin-top: 5px; text-align: justify\"\u003e该团队成功研制�nm连续波\u003c!--VERTICAL_CARD_BEGIN_1--\u003e超窄线宽激光\u003c!--VERTICAL_CARD_END_1--\u003e光源，首次将超稳激光技术拓展至真空紫外波段，攻克了\u003c!--VERTICAL_CARD_BEGIN_2--\u003e核光钟\u003c!--VERTICAL_CARD_END_2--\u003e研制的“最后一个核心瓶颈”。这一突破补齐了核光钟的关键技术短板，为精密测量领域发展开辟新路径，彰显了我国在量子科技与基础研究领域的领先实力。\u003c!--NO_AD_1--\u003e\u003c!--EOP_1--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_1--\u003e\n\u003cp style=\"margin-bottom: 20px; margin-top: 5px; text-align: justify\"\u003e\u003c!--IMG_0--\u003e\u003c/p\u003e\n\u003cp style=\"margin-bottom: 20px; margin-top: 5px; text-align: justify\"\u003e当前原子光钟虽精度极高，但易受电磁干扰，仅能在实验室环境中运行。核光钟具备更高精度与强抗干扰能力，但长期受限�nm连续波激光光源而难以推进。\u003c!--NO_AD_2--\u003e\u003c!--EOP_2--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_2--\u003e\n\u003cp style=\"margin-bottom: 20px; margin-top: 5px; text-align: justify\"\u003e团队创新性提出\u003c!--VERTICAL_CARD_BEGIN_3--\u003e金属蒸气四波混频\u003c!--VERTICAL_CARD_END_3--\u003e新方案，率先实�nm连续波输出，并将线宽降低近六个数量级，为真空紫外波段超稳激光技术奠定基础，抢先完成关键技术突破，领先国际同类专项研究。\u003c!--NO_AD_3--\u003e\u003c!--EOP_3--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_3--\u003e\n\u003cp style=\"margin-bottom: 20px; margin-top: 5px; text-align: justify\"\u003e该成果应用价值显著，除支撑核光钟研究外，还可作为通用平台服务原子光钟、量子信息、凝聚态谱学等前沿领域，支撑自主导航、深空探测、高精度地质与引力探测等应用，并有望实现半导体真空紫外计量与高端测试装备自主可控。\u003c!--NO_AD_4--\u003e\u003c!--EOP_4--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_4--\u003e\u003cp class=\"luokuan\" style=\"text-indent: 0\"\u003e\u003cstrong\u003e来源：科技日报\u003c/strong\u003e\u003c/p\u003e\u003cp class=\"luokuan\" style=\"text-indent: 0\"\u003e\u003cstrong\u003e作者: 华凌\u003c/strong\u003e\u003c/p\u003e\u003cstyle\u003e.rich_media_content{--news-tabel-th-night-color: #444444;--news-font-day-color: #333;--news-font-night-color: #d9d9d9;--news-bottom-distance: 22px}.rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}.rich_media_content{color:var(--news-font-day-color);font-size:18px}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]):not(.qn-editor-copy){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content{color:var(--news-font-night-color)}}.data_color_scheme_dark .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.data_color_scheme_dark .rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}.data_color_scheme_dark .rich_media_content{color:var(--news-font-night-color)}.data_color_scheme_dark .rich_media_content{font-size:18px}.rich_media_content p[data-exeditor-arbitrary-box=image-box]{margin-bottom:11px}.rich_media_content\u003ediv:not(.qnt-video),.rich_media_content\u003esection{margin-bottom:var(--news-bottom-distance)}.rich_media_content hr{margin-bottom:var(--news-bottom-distance)}.rich_media_content .link_list{margin:0;margin-top:20px;min-height:0!important}.rich_media_content blockquote{background:#f9f9f9;border-left:6px solid #ccc;margin:1.5em 10px;padding:.5em 10px}.rich_media_content blockquote p{margin-bottom:0!important}.data_color_scheme_dark .rich_media_content blockquote{background:#323232}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content blockquote{background:#323232}}.rich_media_content ol[data-ex-list]{--ol-start: 1;--ol-list-style-type: decimal;list-style-type:none;counter-reset:olCounter calc(var(--ol-start,1) - 1);position:relative}.rich_media_content ol[data-ex-list]\u003eli\u003e:first-child::before{content:counter(olCounter,var(--ol-list-style-type)) '. 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