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  • Chips na-eji sekit photonic agbakwunyere nwere ike inye aka mechie oghere 'terahertz'

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Chips na-eji sekit photonic agbakwunyere nwere ike inye aka mechie oghere 'terahertz'

1

 

Ndị nyocha ewepụtala mgbawa dị oke mkpa nke nwere sekit fotonic agbakwunyere nke enwere ike iji mee ihe a na-akpọ oghere terahertz - dina n'etiti 0.3-30THz na ụdị elektrọn magnetik - maka spectroscopy na onyonyo.

Ọdịiche a bụ ihe mpaghara nwụrụ anwụ nke teknụzụ, na-akọwa ugboro ole na-adị oke ngwa ngwa maka ngwa eletrọnịkị na ngwa nkwukọrịta nke oge a, mana ọ na-adị ngwa ngwa maka ngwa anya na eserese.

Agbanyeghị, mgbawa ọhụrụ nke ndị ọkà mmụta sayensị na-enyere ha aka imepụta ebili mmiri terahertz na ugboro ugboro, ogologo ogologo, njupụta na oge. Njikwa ziri ezi dị otú ahụ nwere ike ime ka terahertz radieshon nwee ike ijikwa maka ngwa ọgbọ na-abịa na ma eletrọnịkị na ngwa anya.

E bipụtala ọrụ ahụ, nke emere n'etiti EPFL, ETH Zurich na Mahadum HarvardNkwukọrịta okike.

Cristina Benea-Chelmus, onye duziri nyocha na Laboratory of Hybrid Photonics (HYLAB) na EPFL's School of Engineering, kọwara na ka ebili mmiri terahertz na-emepụta na ụlọ nyocha na mbụ, ụzọ ndị gara aga adaberewo na kristal buru ibu iji mepụta ugboro ole kwesịrị ekwesị. Kama nke ahụ, iji ụlọ nyocha ya jiri sekit photonic, nke sitere na lithium niobate na nke ndị na-arụkọ ọrụ ọnụ na Mahadum Harvard rụpụtara nke ọma n'ọkwa nanometer, na-eme ka ọ dịkwuo mfe karị. Ojiji nke mkpụrụ silicon na-emekwa ka ngwaọrụ ahụ dabara adaba maka ntinye n'ime sistemu eletrọnịkị na ngwa anya.

"Ịmepụta ebili mmiri n'ogo dị oke elu bụ ihe ịma aka nke ukwuu, yana enwere usoro ole na ole nwere ike ịmepụta ha n'ụdị pụrụ iche," ka ọ kọwara. "Ugbu a, anyị nwere ike ịmepụta ụdị oge nke terahertz ebili mmiri - iji kwuo n'ezie, 'Achọrọ m ụdị ebili mmiri dị ka nke a."

Iji mezuo nke a, ụlọ nyocha Benea-Chelmus haziri nhazi nke ọwa nke mgbawa, nke a na-akpọ waveguides, n'ụzọ ga-esi jiri antennas microscopic gbasaa ebili mmiri terahertz nke ọkụ sitere na eriri anya.

"Eziokwu ahụ na ngwaọrụ anyị ejirilarị akara ngosi anya anya bụ uru n'ezie, n'ihi na ọ pụtara na a pụrụ iji ibe ọhụrụ ndị a mee ihe na lasers omenala, nke na-arụ ọrụ nke ọma ma na-aghọta nke ọma. Ọ pụtara na ngwaọrụ anyị na-ekwekọ na telekomunikashions, "Benea-Chelmus kwusiri ike. Ọ gbakwụnyere na ngwaọrụ ndị pere mpe na-eziga ma nata akara na mpaghara terahertz nwere ike rụọ ọrụ dị mkpa na sistemụ mkpanaka ọgbọ nke isii (6G).

N'ime ụwa nke optics, Benea-Chelmus na-ahụ ike pụrụ iche maka obere lithium niobate chips na spectroscopy na onyonyo. Na mgbakwunye na ịbụ ndị na-abụghị ionising, terahertz ebili mmiri dị nnọọ ala-ike karịa ọtụtụ ụdị ebili mmiri ndị ọzọ (dị ka x-ray) ugbu a na-enye ozi gbasara ihe mejupụtara nke ihe - ma ọ bụ ọkpụkpụ ma ọ bụ mmanụ eserese. Ngwa kọmpat, nke anaghị emebi emebi dị ka mgbawa lithium niobate nwere ike inye ụzọ ọzọ na-akpa ike karịa usoro nlegharị anya ugbu a.

"Ị nwere ike iche n'echiche izipu terahertz radieshon site na ihe ị nwere mmasị na nyochaa ya iji tụọ nzaghachi nke ihe ahụ, dabere n'ụdị molecular ya. Ihe a niile sitere na ngwaọrụ dị obere karịa isi egwuregwu," ka o kwuru.

Na-esote, Benea-Chelmus na-ezube ilekwasị anya na tweaking Njirimara nke mgbawa ebili mmiri nke mgbawa na antennas ka injinia na-efegharị ebili mmiri nwere nnukwu njupụta, yana ọtụtụ ugboro na-emegharị nke ọma na ọnụego ire ere. Ọ na-ahụkwa ike maka teknụzụ terahertz emepụtara na ụlọ nyocha ya ka ọ baa uru maka ngwa quantum.

"E nwere ọtụtụ ajụjụ ndị dị mkpa ị ga-aza; dịka ọmụmaatụ, anyị nwere mmasị ma anyị nwere ike iji ụdị ibe a na-emepụta ụdị radieshon ọhụrụ nke enwere ike ịmegharị n'oge dị mkpirikpi oge. Enwere ike iji ebili mmiri dị otú ahụ na sayensị quantum mee ihe iji chịkwaa ihe ndị dị na quantum," ka o kwubiri.


Oge nzipu: Feb-14-2023

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