Vatsvagiri vakagadzira chip yakatetepa zvakanyanya ine yakabatanidzwa photonic wedunhu iyo inogona kushandiswa kushandisa iyo inonzi terahertz gap - iri pakati pe 0.3-30THz mumagetsi emagetsi - yekutarisa uye imaging.
Mukaha uyu parizvino chimwe chenzvimbo yakafa yetekinoroji, inotsanangura mafambiro ari kukurumidza kumagetsi emazuva ano nemidziyo yekufonera, asi inononoka kune optics uye imaging application.
Nekudaro, chip chitsva chesaenzi ikozvino chinovagonesa kugadzira masaisai eterahertz ane akarongedzerwa frequency, wavelength, amplitude uye chikamu. Kudzora chaiko kwakadai kunogona kugonesa terahertz mwaranzi kuti ishandiswe kune inotevera-chizvarwa maapplication mune ese emagetsi uye ekuona nzvimbo.
Basa iri, rakaitwa pakati peEPFL, ETH Zurich neYunivhesiti yeHarvard, rakabudiswa mukatiNature Communications.
Cristina Benea-Chelmus, uyo akatungamira tsvagiridzo muLabhoritari yeHybrid Photonics (HYLAB) paEPFL's Chikoro cheUinjiniya, akatsanangura kuti nepo masaisai eterahertz akagadzirwa munzvimbo yerabhoritari zvisati zvaitika, nzira dzakapfuura dzaivimba zvakanyanya nemakristasi akawanda kugadzira mafambiro akakodzera. Pane kudaro, kushandisa kwake lab yephotonic circuit, yakagadzirwa kubva ku-lithium niobate uye yakanamirwa zvakanaka pachiyero chenanometer nevanoshanda navo paHarvard University, inoita kuti pave nenzira yakanyatsorongeka. Kushandiswa kwesilicon substrate kunoitawo kuti mudziyo wakakodzera kubatanidzwa mune zvemagetsi uye optical masisitimu.
"Kugadzira masaisai pamhepo yakanyanya kunetsa, uye kune mashoma mashoma maitiro anogona kuagadzira ane akasiyana mapatani," akatsanangura. "Isu tave kukwanisa kugadzira chimiro chaicho chenguva yemafungu eterahertz - kutaura chaizvo, 'Ndinoda waveform inoita seizvi.'
Kuti zvizadzise izvi, Benea-Chelmus 'lab yakagadzira iyo chip kurongeka kwemachaneli, anonzi waveguides, nenzira yekuti maantenna madiki agone kushandiswa kutepfenyura masaisai eterahertz anogadzirwa nechiedza kubva kuoptical fibers.
"Chokwadi chekuti mudziyo wedu watoita kushandisa mwero optical chiratidzo chinobatsira chaizvo, nekuti zvinoreva kuti machipisi matsva aya anogona kushandiswa neanogara achishandiswa lasers, anoshanda zvakanaka uye anonzwisiswa zvakanyanya. Zvinoreva kuti mudziyo wedu unoenderana nenhare," akasimbisa Benea-Chelmus. Akawedzera kuti michina midiki inotumira nekugamuchira masaini mumutsara weterahertz inogona kuita basa rakakosha muchizvarwa chechitanhatu nharembozha (6G).
Munyika ye optics, Benea-Chelmus inoona yakasarudzika mukana we miniaturized lithium niobate machipi mu spectroscopy uye imaging. Pamusoro pekusaita ionising, masaisai eterahertz ane simba rakaderera pane mamwe marudzi mazhinji emasaisai (akadai se x-rays) anoshandiswa parizvino kupa ruzivo nezve maumbirwo echinhu – ringava bhonzo kana pendi yemafuta. Iyo compact, isingaparadze mudziyo senge lithium niobate chip inogona kupa isinganyanyi kupindira kune yazvino spectrographic matekiniki.
"Unogona kufungidzira kutumira terahertz mwaranzi kuburikidza nechinhu chauri kufarira uye uchichiongorora kuti uone mapinduriro ezvinhu, zvichienderana nemaitiro ayo mamorekuru. Zvese izvi kubva mumudziyo diki pane musoro wemachisi," akadaro.
Tevere, Benea-Chelmus inoronga kutarisa pamusoro pekugadzirisa zvivakwa zveiyo chip's waveguides uye antennas kune mainjiniya waveforms ane yakakura amplitudes, uye akanyanya kurongeka ma frequency uye mitengo yekuora. Iye zvakare anoona mukana weiyo terahertz tekinoroji yakagadziridzwa mulabhu yake kuti ibatsire kune quantum application.
"Pane mibvunzo yakawanda yakakosha yekupindura; semuenzaniso, isu tinofarira kana isu tichigona kushandisa machipi akadaro kugadzira mhando nyowani dzehuwandu hwemwaranzi inogona kudzorwa nenguva pfupi pfupi." Mafungu akadaro muhuwandu hwesainzi anogona kushandiswa kudzora quantum zvinhu, "akapedzisa.
Nguva yekutumira: Feb-14-2023
