AkasiyanaUltraff laserchikamu chimwe
Zvimiro zvakasarudzika zve Ultrastlasers
Iyo Ultra-pfupi pulse nguva yekutora kweUltrahfer Lasers inopa aya masisitimu akasiyana siyana ayo anovasiyanisa kubva kure-mhou kana kuenderera-wave (cw) lasers. Kuti ubudise paki pfupi pfupi, onectrum bandwidth inodiwa. Iyo pulse chimiro uye yepakati wavelength sarudza iyo shoma bandwidth bandwidth inodiwa kuti uburitse mapuranga eimwe nguva. Kazhinji, hukama uhwu hunotsanangurwa maererano nenguva-bandwidth chigadzirwa (tbp), iyo inotorwa kubva kune isingazivikanwe nheyo. Iyo TBP yeGaussian Pulse inopihwa neinotevera formula: tbpgussian = δτδ≈≈00.441
E δ δ Inven's Pulse Nguva uye δv ndiyo nguva yebhendi. Mukukosha, equation inoratidza kuti kune hukama hwakafanana pakati pe spectrum bandwidth uye pulse nguva, zvichireva kuti nguva yekuputika inodzikira, iyo bandwidth inodiwa kuti iite kuti pulse inowedzera. Mufananidzo 1 unoratidza iyo shoma bandwidth inodiwa kuti utsigire dzinoverengeka madhiri akasarudzika.
Mufananidzo 1: Minimum Spectral Bandwidth Inodiwa Kuti Utsigirelaser pursesof 10 ps (girini), 500 FS (bhuruu), uye 50 FS (RED)
Zvinetso zvehunyanzvi zve Ultraufer Lasers
Iyo yakakura spectral bandwidth bandwidth, pelak simba, uye pfupi pulse nguva yekutora yeUlstrausta Lasers inofanirwa kuve yakachengetedzwa zvakanaka muhurongwa hwako. Kazhinji, imwe yemhinduro dzakareruka kumatambudziko aya ndiyo yakafara spectrum kubuda kwe lasers. Kana iwe uchinyanya kushandisa nguva yakareba
Laser kukuvara chikumbaridzo
Ultrafast Optics zvakare ine zvakanyanya zvakasiyana uye zvakanyanya kuoma kufambisa laser kukuvara zvidiki (ldt) zvichienzaniswa neyakajairika laser zvinyorwa. Kana Optics inopihwaNanosecond akasvetuka lasers, Ldt tsika kazhinji kazhinji mune yakarongeka ye5-10 J / cm2. Zvekusavimbika Iyo yakakosha kusiyanisa kweLDT inogumisa pasi pehurongwa hwakasiyana hwekudhira ndiko mhedzisiro ye laser kukuvara kwemuchina kubva pamusuwo. For nanosecond lasers kana kupfuuraPUDZIDZO LASERS, iyo nzira huru iyo inokonzera kukuvara ndeye inopisa kupisa. Iyo yekuvhara uye yakamutsira zvinhu zveOptical zvishandisotora zviwanikwa zvacho zvinovaka uye kupisa. Izvi zvinogona kutungamira mukukanganisa kweiyo kristaro yechipenga. Kuwedzera kwekuwedzera, kupaza, kunyungudutsa uye lattice strain ndiyo yakajairika yekukanganisa maitiro eayalaser zvinyorwa.
Nekudaro, kuti urefu hwekupedzisira, iyo pulse nguva inokurumidza kupfuura chiyero chenguva yekupisa kubva pane iyo laser kune iyo yekunyora, saka iyo inokanganisa haisi iyo chikonzero chikuru chekukuvara kweLaser-kwakakurudzirwa. Panzvimbo pezvo, simba repamusoro reiyo ultrahfast Laser inoshandura iyo yekukuvara maitiro mune nonlinear maitiro akadai seyakawanda-Photon yekunyora uye ionization. Ichi chikonzero nei hazvigoneke kungozvinyudza pasi peLDT chiyero cheNanosecond phse kune iyo yeiyo Ultrafasm yekukuvara yakasiyana. Naizvozvo, pasi pemamiriro ezvinhu akafanana ekushandiswa (semuenzaniso, wavelength Optics inoongororwa pasi pemamiriro ezvinhu akasiyana haisi mumiriri wekuita chaiko kweiyo yakafanana optics muhurongwa.
Mufananidzo 1: Mechanisms yeLaser akakurudzira kukuvadza neakasiyana purse
Kutumira Nguva: Jun-24-2024