997GHz ultra-ballaaran cusubmodulator-ka-elektrooniga
Modulator-ka cusub ee ultra-ballaaran ee korantada-optic-ga ayaa dejiyay rikoor xawilaad ah oo ah 997GHz
Dhawaan, koox cilmi-baaris ah oo ku sugan Zurich, Switzerland, ayaa si guul leh u soo saaray modulator-ka elektiroonigga ah ee ultra-wideband kaas oo ku shaqeeya soo noqnoqoshada inta u dhaxaysa 10 MHz ilaa 1.14 THZ, oo dejinaya rikoodhka bandwidth 3 dB ee 997 GHz, taas oo laba jeer ah rikoodhka hadda jira. Horumarkan waxa loo nisbeeyey nakhshad la wanaajiyey ee modulators balasmaha, iyada oo u furaysa meel cusub oo cusub oo mustaqbalka ah ee terahertz photonic integrated circuits (PICs).
Waqtigan xaadirka ah, isgaarsiinta wireless-ku waxay inta badan ku tiirsan tahay microwaves iyo hirarka milimitirka, laakiin ilaha spectrum ee xadhkaha soo noqnoqda ayaa u janjeera inay buuxsamaan. Inkasta oo isgaadhsiinta indhaha ay leedahay baaxad weyn, si toos ah looguma isticmaali karo gudbinta wireless-ka ee meel bannaan. Sidaa darteed, isgaarsiinta THz waxaa loo arkaa inay tahay "buundada dahabka ah" ee isku xirta shabakadaha wireless iyo fiber-optic, taasoo bixisa xal ku habboon 6G iyo hababka isgaarsiinta heerka sare. Dhibaatadu waxay ku jirtaa in waxqabadka modulators electro-optic ee jira (sidaModulator LiNbo₃, InGaAs, iyo walxaha silikoon ku salaysan) ee band soo noqnoqda THz waa ka fog yahay ku filan. Dareenka calaamaduhu waa cad yahay. Xadhkaha xadiga shaqadu waa kaliya 14 GHz inta jeer ee sidaha ugu badana waa 100 GHz, taas oo ka fog buuxinta heerarka looga baahan yahay isgaarsiinta THz. Maqaalkani, cilmi-baarayaashu waxay soo saareen modulator cusub oo ku salaysan balaasmaha, si guul leh u kordhiya 3 dB bandwidth ilaa 997 GHz, taas oo ah laba jeer rikoodhka hadda jira, sida ku cad Jaantuska 1. Horumarkaani ma aha oo kaliya inuu jebiyo xaddidaadda tignoolajiyada dhaqameed laakiin sidoo kale wuxuu ballaariyaa waddada horumarinta mustaqbalka ee isgaarsiinta THz!
Jaantuska 1 Modulator-ka korantada ee Plasma oo leh bandwidth THz
Horumarka asaasiga ah ee nooca cusub ee modulator-ka ayaa ku jira tignoolajiyada sare ee loo yaqaan "saamaynta balasmaha". Bal qiyaas in marka iftiinku ka iftiimo dusha sare ee nanostructure bir ah, ay ku soo noqnoqonayso elektaroonnada ku jira maaddada - electrons-yadu waxay si wada jir ah u gilgishaan iftiinka, iyaga oo samaynaya nooc gaar ah oo mawjad ah. Sida saxda ah waa isbedbedelkan awood u siinayamodulatoresi loo maareeyo calaamadaha indhaha oo leh hufnaan aad u sarreeya. Natiijooyinka tijaabada ahi waxay muujinayaan in modulator-ku uu soo bandhigo sifooyin wax-ka-beddelid wanaagsan gudaha inta u dhaxaysa DC ( hadda tooska ah) ilaa 1.14 THZ oo uu leeyahay faa'iido xasilloon oo xadiga soo noqnoqda ee 500 GHz ilaa 800 GHz.
Si aad si qoto dheer u barato habka shaqada ee modulator-ka, kooxda cilmi-baadhistu waxay dhiseen qaab wareeg ah oo faahfaahsan oo u dhigma waxayna falanqeeyeen saameynta cabbirrada qaabdhismeedka kala duwan ee waxqabadka modulator-ka iyada oo loo marayo jilitaanka. Natiijooyinka tijaabada ah waxay si wanaagsan ula heshiiyaan qaabka aragtida, sii xaqiijinta waxtarka iyo xasiloonida modulator-ka. Intaa waxaa dheer, cilmi-baarayaashu waxay soo jeediyeen qorshe horumarin. Waxaa la filayaa in iyada oo loo marayo nakhshad la wanaajiyey, inta jeer ee hawlgalka modulator-kani uu dhaafi karo 1THz mustaqbalka, iyo xitaa inuu gaaro in ka badan 2THz!
Daraasadani waxay muujinaysaa awoodda weyn ee balasmahamodulators electro-opticIsgaadhsiinta THz iyo wareegyada isku dhafan ee sawir-qaadista (PICs). Qalabkan, oo leh sifooyinkiisa ultra-wideband, hufnaan sare iyo is-dhexgal, wuxuu bixiyaa xal-cusub ee habaynta calaamadaha THz. Mustaqbalka, iyada oo la sii wanaajinayo naqshadaynta aaladda iyo hababka wax-soo-saarka, inta jeer ee hawlgalka ee modulators balasmaha ayaa la filayaa inay dhaafto 2 THz, gaaritaanka heerarka xogta sare iyo daboolida baaxadda ballaaran. Imaanshaha xilliga THz macnaheedu maaha oo kaliya gudbinta xogta degdega ah iyo awoodaha dareenka saxda ah, laakiin sidoo kale waxay kor u qaadi doontaa isdhexgalka qoto dheer ee dhinacyo badan sida isgaarsiinta wireless, xisaabinta indhaha, iyo ogaanshaha caqliga leh. Horumarka aaladaha elektiroonigga ah ee balaasmaha ayaa laga yaabaa inay noqdaan tallaabo muhiim ah oo horseedaysa horumarinta tignoolajiyada THz, iyadoo siinaya aasaaska isku xidhka xawaaraha sare ee bulshada macluumaadka mustaqbalka.
Waqtiga boostada: Jun-09-2025