Crystal Photonic

kristal photonic bụ ihe ọgbara ọhụrụ nwere ihe ọzọ nke mkpụrụ ndụ elementrị nwere ntugharị ntugharị dị elu na nke dị ala na akụkụ ya na ogologo ogologo nke ìhè sitere na nso nso a. A na-eji kristal phonic eme ihe na optoelectronics. A na-eche na iji kristal photonic ga-ekwe ka ihe atụ. iji chịkwaa mgbasawanye nke ebili mmiri na ga-emepụta ohere maka ịmepụta sekit agbakwunyere fotonic na usoro anya, yana netwọk mgbasa ozi nwere nnukwu bandwidth (nke usoro Pbps).

Mmetụta nke ihe a na ụzọ ọkụ yiri mmetụta nke grating na mmegharị nke electrons na kristal semiconductor. N'ihi ya aha "photonic crystal". Ọdịdị nke kristal photonic na-egbochi mgbasa nke ebili mmiri ọkụ n'ime ya n'ụdị ogologo ogologo. Mgbe ahụ, nke a na-akpọ oghere foton. Echiche nke ịmepụta kristal photonic ka emepụtara n'otu oge na 1987 na ụlọ ọrụ nyocha abụọ US.

Eli Jablonovich nke Bell Communications Research na New Jersey rụrụ ọrụ na ihe maka transistor photonic. Ọ bụ mgbe ahụ ka o wepụtara okwu bụ "photonic bandgap". N'otu oge ahụ, Sajiv John nke Mahadum Prieston, mgbe ọ na-arụ ọrụ iji melite arụmọrụ nke lasers eji na telecommunications, chọpụtara otu ọdịiche ahụ. Na 1991, Eli Yablonovich nwetara mbụ photonic crystal. N'afọ 1997, e mepụtara usoro nchịkọta maka ịnweta kristal.

Ihe atụ nke kristal photonic nwere akụkụ atọ na-emekarị bụ opal, ihe atụ nke oyi akwa photonic nke nku nke urukurubụba nke genus Morpho. Otú ọ dị, kristal photonic na-emekarị ka ọ bụrụ artificially n'ime ụlọ nyocha sitere na silicon, nke na-adịkwa porous. Dị ka usoro ha si dị, a na-ekewa ha na otu-, abụọ na akụkụ atọ. Usoro kachasị mfe bụ nhazi otu akụkụ. Igwe kristal photonic nwere otu akụkụ bụ ndị ama ama na akwa dielectric ejiri ogologo oge mee ihe, nke ejiri ngbanwe ntụgharị nke na-adabere n'ogologo ọkụ nke ihe ahụ merenụ. N'ezie, nke a bụ enyo Bragg, nke nwere ọtụtụ ọkwa nwere ihe ngbanwe dị elu na nke dị ala. Ngosipụta Bragg na-arụ ọrụ dị ka ihe nzacha na-agafe agafe oge niile, a na-egosipụta ụfọdụ ugboro ebe ndị ọzọ na-agafe. Ọ bụrụ na ị tụgharịa Bragg mirror n'ime tube, ị ga-enweta nhazi akụkụ abụọ.

Ọmụmaatụ nke kristal fotonic nke nwere akụkụ abụọ nke ejiri aka mepụta bụ fiber optic optical na photonic layers, nke, mgbe ọtụtụ mgbanwe gachara, enwere ike iji gbanwee ntụzịaka nke mgbama ọkụ n'ebe dị anya dị obere karịa na sistemu ngwa anya agbakwunyere. Enwere ụzọ abụọ ugbu a maka ịmegharị kristal photonic.

первый - PWM (usoro ikuku ụgbọ elu) na-ezo aka na otu akụkụ na akụkụ abụọ ma mejupụtara na ngụkọ nke usoro ihe ọmụmụ, gụnyere Bloch, Faraday, Maxwell equations. Nke abụọ Usoro maka ịmebe ihe owuwu fiber optic bụ usoro FDTD (Ngalaba Oge Ọdịiche Dị Mfe), nke mejupụtara n'ịgbazi nhata Maxwell na oge dabere na mpaghara eletriki na oghere ndọta. Nke a na-eme ka o kwe omume ịme nnwale ọnụọgụgụ na mgbasa nke ebili mmiri electromagnetic n'ụdị kristal enyere. N'ọdịnihu, nke a kwesịrị ime ka o kwe omume ịnweta usoro photonic na akụkụ ndị yiri nke ngwaọrụ microelectronic eji achịkwa ìhè.

Ngwa ụfọdụ nke kristal photonic:

• Nhọrọ enyo nke laser resonators,
• nkesa nzaghachi lasers,
• eriri fotonic (fiber kristal kristal), filaments na planar;
• Photonic semiconductors, ultra-white pigments,
• LEDs nwere oke arụmọrụ, Microresonators, Metamaterials - ihe aka ekpe,
• Nnwale brọdband nke ngwaọrụ fotonic,
• spectroscopy, interferometry ma ọ bụ anya coherence tomography (OCT) - iji mmetụta siri ike na-eme ihe.