Idasanzwe ultrafafari ya laser igice kimwe

IdasanzweUltrafafari LaserIgice cya mbere

Ibiranga bidasanzwe byo gukururalasers
Ikigereranyo cya Ultra-kigufi cyigihe cya Ultrafafari gitanga iyi sisitemu yimitungo yihariye ibatandukanya kuva kera cyangwa gukomeza-wave (cw). Kugirango utanga udusimba duto, birakenewe. Imiterere ya Pulse hamwe nu murongo wo hagati uhitamo igitambaro ntarengwa gisabwa kugirango utanga umwanya wigihe runaka. Mubisanzwe, iyi mibanire isobanurwa mubijyanye nibicuruzwa-binDidth (TBP), biva mu ihame ridashidikanywaho. TBP ya Gaussian Pulse itangwa na formula ikurikira: tbpgaussussian = ΔτΔν≈0.441
Δτ nigihe kinini hamwe na ΔV ninsundth. Mubyukuri, ikigereranyo cyerekana ko hari umubano uhindagurika hagati yumurongo wa spectrum na Pulse, bivuze ko mugihe uko igikundiro gisabwa, umugwaneza uragabanuka, umugwaneza usabwa kubyara iyo pulse yiyongera. Igishushanyo cya 1 cyerekana igitambaro ntarengwa gisabwa kugirango ushyigikire igihe kirekire gitandukanye.

Igishushanyo 1: Umurongo ntarengwa wa karwisabwa kugirango ushyigikireLaser Pulsesya 10 ps (icyatsi), 500 fs (ubururu), na 50 fs (umutuku)

INGORANE ZA TKISY ZA Ultray
Imiyoboro yagutse, amashanyarazi, hamwe nigihe gito cya pulse mugihe cyanyuma cya lasers kigomba gucungwa neza muri sisitemu. Akenshi, kimwe mubisubizo byoroshye kuri izi mbogamizi nuburyo bwagutse bwa laser. Niba wakoresheje cyane cyane pulse cyangwa ukomeza-wave lasers mu bihe byashize, ububiko bwawe buriho bwibigize optique ntashobora kwerekana cyangwa kohereza umurongo wuzuye wa malray.

Laser ibyangiritse
Ultray optics nayo itandukana cyane kandi iragoye kunyura kuri laser yangiza laser (LDT) ugereranije nuburyo busanzwe bwa laser. Iyo optics itangwa kuriNanosecond Pulsers, Indangagaciro za Ldt mubisanzwe ziri murutonde rwa 5-10 J / CM2. Kubyerekeranye, indangagaciro zubu bunini ntirugeraho, nkuko indangagaciro za Ldt birashoboka cyane ko zikurikirana <1 j / cm2, ubusanzwe hafi ya 0.3 j / cm2. Imyifatire ifatika ya LDT amplitude munsi yimbumba zitandukanye ni ibisubizo bya Metch Mechanism yangiritse ishingiye kuri Duration. Kuri nanosecond lasers cyangwa ndendeGupakira, uburyo nyamukuru butera kwangirika ni ugushyushya. Ibikoresho byo gupfuka hamwe naIbikoresho bya OptiqueGukuramo ibyabaye gufotora no kubasusurutsa. Ibi birashobora kuganisha ku kugoreka ibintu bya kirisiti ya Crystal. Kwagura ikirere, gucika, gushonga na lattice nibice bikunze kugaragara muburyo bwa kwangirika muribiAmasoko ya Laser.

Ariko, kuri ultrafafari, igihe cya Pulse ubwacyo cyihuta kuruta igihe cyo kwimura ubushyuhe muri laser kuri lattice yibintu, niko ingaruka zubushyuhe ntabwo arimpamvu nyamukuru yo kwangirika kwa laser. Ahubwo, impinga za peak of ultray laser ihindura uburyo bwo kwangirika muburyo budahwitse nka photon yo muri photon na ionisation. Niyo mpamvu bidashoboka gusa kugabanya gusa ldt urutonde rwa pulse ya nanosecond kuriyi shobuja ultrakes, kuko uburyo bwumubiri bwibyangiritse buratandukanye. Kubwibyo, mubihe bimwe byo gukoresha (urugero, uburebure bwamabuye, uburebure bwa pulse, hamwe nigipimo cya optique hamwe nigikoresho cyiza cya LDT kizaba cyiza cya optique kuri porogaramu yawe yihariye. Optics yageragejwe mubihe bitandukanye ntabwo ihagarariye imikorere nyayo ya optics imwe muri sisitemu.

Igishushanyo 1: Uburyo bwa Laser bwangije kwangirika hamwe nimbaro zitandukanye