ngµç×ÓÓÎÏ·ÐÂÎÅÍøѶ£¨Í¨Ñ¶Ô±À×ÊÀݼ£©ngµç×ÓÓÎÏ·ÎïÀíѧԺ¡¢¹âµçÖÊÁÏÓëÊÖÒÕ¹ú¼ÒÖصãʵÑéÊÒ¶½¨ÎĽÌÊÚ¡¢³ÂÏþ¶«¸±½ÌÊÚÑо¿ÍŶӻùÓںϳÉƽÒÆά¶È£¬£¬£¬ÊµÏÖÁËÒ»ÖÖƬÉÏÍØÆ˹â×Ó¾§ÌåÄÉÃ×ÇÅÂ˲¨Æ÷£¬£¬£¬ÆäÂ˲¨²¨³¤ÔÚ¿í²¨³¤¹æÄ££¨>300nm£©Äڿɵ÷ÇÒÄܼá³Öµ¥²¨³¤Â˲¨¡£¡£¸ÃÊÂÇéչʾÁ˺ϳÉƽÒÆά¶ÈÔÚƬÉÏÂ˲¨Æ÷ÖеÄÓ¦ÓÃʵÀý£¬£¬£¬ÎªÆäËûƬÉÏ΢ÄɹâѧÆ÷¼þµÄÉè¼ÆÌṩÁËÐÂÒªÁì¡£¡£
×÷Ϊ΢ÄɹâѧÆ÷¼þ£¨È粨·Ö¸´ÓÃÆ÷¡¢¹âÆ×Òǵȣ©µÄ»ù´¡×é³ÉÔª¼þÖ®Ò»£¬£¬£¬Æ¬ÉÏÂ˲¨Æ÷Äܹ»ÔÚÌض¨²¨³¤¹æÄ£ÄÚʵÏÖ¶Ô¹âÐźŵÄ׼ȷ¿ØÖÆ¡£¡£ÎªÁËÔÚ΢Äɱê×¼ÉÏʵÏÖ¸ü¸ßЧµÄ¹âµ÷¿Ø£¬£¬£¬Ñо¿Ö°Ô±Ò»Ö±ÔÚ×·Çó¸üΪÏȽøµÄÒªÁìºÍÖÊÁÏ¡£¡£¹â×Ó¾§ÌåÒòÆäÆæÒìµÄ¹â×ÓÄÜ´øµ÷¿ØÄÜÁ¦¶ø³ÉΪÉè¼ÆƬÉÏÂ˲¨Æ÷µÄÓÅÁ¼Æ½Ì¨Ö®Ò»¡£¡£Í¨¹ýÔÚ¹â×Ó¾§ÌåÖÐÒýÈëȱÏÝ£¬£¬£¬Ñо¿Ö°Ô±¿ÉÒÔʵÏÖÌض¨²¨³¤¹âµÄÑ¡ÔñÐÔ´«Êä¡£¡£È»¶ø£¬£¬£¬ÕâÖÖÉè¼ÆÒªÁìÍùÍùÊܵ½È±Ïݽṹ²ÎÊýµÄÏÞÖÆ£¬£¬£¬±£´æÂ˲¨²¨³¤¿Éµ÷¹æģպͷǵ¥²¨³¤Â˲¨µÈÎÊÌâ¡£¡£
½üÄêÀ´£¬£¬£¬ÍØÆ˹â×Ó¾§ÌåÒòÆäÆæÒìµÄ¿Ø¹â·½Ê½£¨ÀýÈ翹ɢÉä¹â´«Êä¡¢ÍØÆË´ø϶ÖеÄȱÏÝģʽµÈ£©¶øÊܵ½ÆÕ±é¹Ø×¢£¬£¬£¬ÖîÈç³°ô¹â²¨µ¼¡¢ÍØÆË΢ǻµÈ¸ßÐÔÄÜƬÉÏÍØÆ˹â×Ó¾§ÌåÆ÷¼þÒѾ±»ÀÖ³ÉʵÏÖ¡£¡£È»¶ø£¬£¬£¬Æ¬ÉÏÍØÆ˹â×Ó¾§ÌåÆ÷¼þµÄʵÏÖÈÔÈ»¾ßÓÐÌôÕ½ÐÔ£¬£¬£¬Ö÷ÒªÓÉÓÚƬÉÏ΢ÄɽṹµÄÖÊÁÏÀàÐÍÓÐÏ޺Ϳɵ÷²ÎÊý¹æÄ£½ÏÕ¡£¡£Ñо¿ÍŶÓÌá³öÁËÒ»ÖÖ»ùÓںϳÉά¶ÈµÄÐÂÉè¼ÆÒªÁ죬£¬£¬¸ÃÒªÁìÔÊÐíÔÚ¸ßÓÚ¼¸ºÎά¶ÈµÄ¸ßά²ÎÊý¿Õ¼äÖÐ̽Ë÷ÐÂÐ͹ⳡµ÷¿Ø£¬£¬£¬ÓÐÍûÏû³ýÖÊÁÏÖÖÀàºÍ½á¹¹²ÎÊýµÄÏÞÖÆ£¬£¬£¬ÎªÆ¬ÉÏÍØÆ˹â×Ó¾§ÌåÆ÷¼þÉè¼ÆÌṩÐÂ;¾¶¡£¡£
Ñо¿ÍŶӽ«¹â×Ó¾§ÌåÄÉÃ×ÇÅÖпÕÆø¿×µÄ¡°Æ½ÒƲÎÊý¡±×÷ΪеĺϳÉά¶È£¬£¬£¬Ìá³öÁËÒ»ÖÖ»ùÓںϳÉƽÒÆά¶ÈµÄƬÉÏÍØÆ˹â×Ó¾§ÌåÄÉÃ×ÇÅÂ˲¨Æ÷µÄÉè¼Æ·½°¸¡£¡£Èçͼ1(a)Ëùʾ£¬£¬£¬½«²î±ðƽÒÆÁ¿µÄ¹â×Ó¾§ÌåÄÉÃ×ÇÅÆ´½ÓÐγÉÍØÆ˹â×Ó¾§ÌåÄÉÃ×ÇÅ΢ǻ¡£¡£ÓÉÓÚÆ´½Ó´¦×óÓÒ¹â×Ó¾§Ìå¾ßÓвî±ðµÄÔú¿ËÏà루Zak phase£©£¬£¬£¬Òò´Ë½çÃæ´¦Ö§³Ö¾ÖÓòǻģ¡£¡£½øÒ»²½¸Ä±äÆ´½Ó´¦ÓÒ²à¹â×Ó¾§ÌåµÄƽÒÆÁ¿£¬£¬£¬´Ó¶øʵÏÖÁ˲î±ð²¨³¤µÄ¹âÊä³ö¡£¡£»£»ùÓںϳÉƽÒÆά¶ÈÉè¼ÆµÄÍØÆ˹â×Ó¾§Ìå΢ǻÏà½ÏÓÚ»ùÓÚȱÏݽṹµÄ¹Å°å¹â×Ó¾§Ìå΢ǻ¾ßÓжà¸öÓÅÊÆ¡£¡£Èçͼ1(b)Ëùʾ£¬£¬£¬»ùÓÚȱÏݽṹµÄ΢ǻ±£´æǻģ²¨³¤ÁýÕÖ¹æÄ£Õ»ò·Çµ¥²¨³¤Â˲¨µÈÎÊÌâ¡£¡£È»¶ø£¬£¬£¬»ùÓںϳÉƽÒÆά¶ÈµÄÍØÆË΢ǻ£¬£¬£¬Í¨¹ý¿ÕÆø¿×ƽÒÆÁ¿µÄ¸Ä±ä£¬£¬£¬Î¢Ç»Ç»Ä£¿ÉÒÔÁýÕÖÕû¸ö¹â×Ó¾§Ìå½û´ø´ø϶£¨>300 nm£¬£¬£¬ÁýÕÖ¹âͨѶ²¨¶ÎµÄ´ó²¿·ÖO²¨¶Î£¬£¬£¬Õû¸öE£¬£¬£¬S£¬£¬£¬C²¨¶ÎÒÔ¼°´ó²¿·ÖL²¨¶Î£©¡£¡£ÇÒÿ¸ö΢ǻ½öÖ§³Öµ¥¸öǻģ£¬£¬£¬¿ÉÒÔʵÏÖµ¥²¨³¤Â˲¨¡£¡£ÊµÑéÉÏ£¬£¬£¬Ñо¿ÍŶÓÖƱ¸Á˾ßÓвî±ðƽÒÆÁ¿µÄƬÉÏÍØÆ˹â×Ó¾§ÌåÄÉÃ×ÇÅÑùÆ·£¬£¬£¬Èçͼ1(c)ËùʾµÄÕÉÁ¿Ð§¹û֤ʵÁËƬÉÏÍØÆ˹â×Ó¾§ÌåÄÉÃ×ÇÅÂ˲¨Æ÷ÔÚ¿í²¨³¤¹æÄ£ÄÚµÄÑ¡ÔñÐÔµ¥²¨³¤Â˲¨¡£¡£
ͼ1.£¨a£©¾ßÓвî±ðƽÒÆÁ¿µÄÈýÖÖƬÉÏÍØÆ˹â×Ó¾§ÌåÄÉÃ×ÇÅÂ˲¨Æ÷ʾÒâͼ¡£¡££¨b£©²î±ðÉè¼ÆÒªÁìµÄ΢ǻǻģɫɢͼ¡£¡££¨c£©²î±ðƽÒÆÁ¿µÄƬÉÏÍØÆ˹â×Ó¾§ÌåÄÉÃ×ÇÅÂ˲¨Æ÷µÄʵÑéÕÉÁ¿Í¸ÉäÆס£¡£
¸ÃÑо¿Ð§¹ûÒÔ¡°On-Chip Topological Photonic Crystal Nanobeam Filters¡±ÎªÌâÓÚ2024Äê1ÔÂ26ÈÕ½ÒÏþÔÚ¹ú¼ÊÖøÃûѧÊõÆÚ¿¯¡¶Nano Letters¡·ÉÏ¡£¡£ngµç×ÓÓÎϷΪ¸ÃЧ¹ûµÄµÚÒ»ÊðÃûµ¥Î»£¬£¬£¬ngµç×ÓÓÎÏ·ÎïÀíѧԺÁõÄ«µã˶ʿÉúºÍ³Âºñºê˶ʿÉúΪÂÛÎĵÄÅäºÏµÚÒ»×÷Õߣ¬£¬£¬ngµç×ÓÓÎÏ·³ÂÏþ¶«¸±½ÌÊںͶ½¨ÎĽÌÊÚΪÅäºÏͨѶ×÷Õß¡£¡£ÉÏÊöÊÂÇé»ñµÃÁ˹ú¼ÒÖصãÑз¢ÍýÏë¡¢¹ú¼Ò×ÔÈ»¿Æѧ»ù½ðÖصãÏîÄ¿¡¢¹ã¶«Ê¡»ù´¡ÓëÓ¦Óûù´¡Ñо¿»ù½ðµÈÏîÄ¿µÄ´óÁ¦Ö§³Ö¡£¡£
ÂÛÎÄÁ´½Ó£ºhttps://pubs.acs.org/doi/10.1021/acs.nanolett.3c04363
µØµã:¹ãÖÝÊÐиÛÎ÷·135ºÅ Óʱà:510275
µç»°: 020-84112828
ngµç×ÓÓÎÏ·°æȨËùÓÐ COPYRIGHT?1999-2022 , SUN YAT-SEN UNIVERSITY