Nkwado nke na-enweghị atụ

Isi nkena-acha uhie uhie lasers

Wayzọ kachasị dị egwu iji mepụtalaserPulses bụ ịgbakwunye onye na-agbanwe agbanwe na mpụga laser na-aga n'ihu. Usoro a nwere ike iwepụta picosecond picosecond, ọ bụ ezie na ọ dị mfe, ma mkpochapụ ike ọkụ na oke elu enweghị ike karịa ike ọkụ na-aga n'ihu. Ya mere, ụzọ dị iche iche kachasị mma iji mepụta laser pulses bụ ihe na-edozigharị na oghere laser, na-echekwa ume na oge nke oge nke ahụ na-azụ ụgbọ elu na ịhapụ ya n'oge. Usoro anọ a na-ahụkarị eji emepụta pulses site na ngbanwe nke laser gas na-agbanwe, q-Swind (mpụ na-agbanyụ), oghere na-apụ, na mkpọchi.

Nnweta ahụ na-emepụta obere pulles site na ịjie ike mgbapụta. Dịka ọmụmaatụ, semiconductor nweta lasers gbanwere nwere ike ịmepụta pulses site na ole na ole nanoseeconds ruo otu narị picosonds site ugbu a. Ọ bụ ezie na ike onye na-efe efe dị ala, usoro a na-agbanwe agbanwe, dị ka inye ugboro ugboro ugboro ugboro na obosara. N'afọ 2018, ndị ọrụ na Mahadum Tokyo kọrọ Fedtosekond gamer semiconductor laser, na-anọchite anya ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-arụ ọrụ na bọchị afọ 40.

Nanosecond pulses na-abụkarị lasers na-eme ihe, nke a na-etinye n'ọtụtụ njem na oghere, na ike akwara ozi dị na ọtụtụ millejoules ruo na sistemụ ahụ. Ọkara ume (n'ozuzu ya n'okpuru 1 μj) picoseecond na Fedtosecond Pulser na-eme ka ọ dị na moders akpọchi. E nwere otu ma ọ bụ karịa ultrashor polses na onye na-emegharị laser na-aga n'ihu na-aga n'ihu. Njirimara intravavity na-enyefe site na enyo na - emepụta okwu na - emepụta, na nsị ahụ na - adịkarị n'etiti 10 mhz na 100 Ghz. Ọnụ ọgụgụ dị n'okpuru na-egosi ezumike zuru oke (Andị) solinosecondNgwaọrụ laser, ọtụtụ n'ime ha nwere ike wuru site na iji Thorlabs Standard (eriri, oghere, ugwu na okpokoro na-enweghị isi).

A ga-eji ụzọ oghereLasers lasersIji nweta Pulses dị mkpụmkpụ na usoro dị na ọnọdụ iji mee ka ike na-enweta ike na-eme mkpọtụ.

Oge Ngalaba na Pulses
Ahịrị ahịrị nke eriri ahụ na oge bụ oge dịtụ mfe ma enwere ike igosipụta ya na ọrụ Gausha na Sech² Ọrụ. Oge Pultụ (a makwaara dị ka njiri mara) Q-agbanyụ agbagọ na-emepụta nanosecond nanosecond mkpụmkpụ
Ọdịda ọnọdụ akpọchiri akpọchi na-emepụta pultra-mkpụmkpụ (USP) n'usoro nke iri puku iri isii nke Picoseeconds na Femtoseconds. Eletriki dị elu nwere ike ịnwe ọnụ ọgụgụ Picoseeconds, yana obere pulses na-enweghị atụ na teknụzụ anya dị ka ihe nchekwa nchekwa, frog na ududo. Ọ bụ ezie na nanosecond ma ọ bụ na-enweghị ike ịgbanwe ogo ha ka ha na-aga, ọbụlagodi ogologo oge, ọtụtụ ihe nwere ike imetụta ọtụtụ ihe:

Mgbasapụ nwere ike ịrụpụta nnukwu nnukwu ọkọlọtọ, mana enwere ike ịgbanye ya na mgbasa nke ọzọ. Ihe nkiri na-esonụ na-egosi etu Thorlabs Feat Pertosecond Pistosover kwụgwara maka mgbasa ozi microscope.

Enweghị ike na-adịghị emetụta oke nke Pọtara, mana ọ na-eme ka bandwidth, na-eme ka a na-enwe ike ịkatọsị mgbasa ozi n'oge mgbasa ozi. Ụdị eriri ọ bụla, gụnyere uru mgbasa ozi ndị ọzọ nwere obere bandwidth, nwere ike imetụta udi nke bandwidth ma ọ bụ ultra-mkpụmkpụ, na ibelata bandwidth nwere ike ibute otu oge; E nwekwara ọnọdụ ebe ogwe osisi nke siri ike na-adị mkpụmkpụ mgbe ụdị ụdị dị egwu.