Unoziva Musiyano Uripo Pakati peNanosecond, Picosecond neFemtosecond Lasers?

Tekinoroji yeLaser yafambira mberi nekukurumidza mumakumi emakore apfuura. Kubva pa nanosecond laser kusvika pa picosecond laser kusvika pa femtosecond laser, yave ichishandiswa zvishoma nezvishoma mukugadzira maindasitiri, ichipa mhinduro kumarudzi ese ehupenyu. Asi unoziva zvakawanda sei nezvemhando idzi nhatu dzemalaser? Ngatizvionei pamwe chete:

Tsanangudzo dzeNanosecond, Picosecond, uye Femtosecond Lasers

Nanosecond laser yakatanga kushandiswa mumaindasitiri kuma1990 se diode-pumped solid-state (DPSS) lasers. Zvisinei, ma laser ekutanga akadaro aive nesimba shoma rekuburitsa ma watts mashoma uye wavelength ye355nm. Nekufamba kwenguva, musika wema nanosecond lasers wakakura, uye ma laser mazhinji ikozvino ane pulse durations mumakumi kusvika kumazana ema nanoseconds.

Picosecond laser ilaser ine upamhi hwepulse hupfupi zvikuru inoburitsa mapulse epicosecond-level. Malaser aya anopa upamhi hwepulse hupfupi zvikuru, frequency inogadziriswa yekudzokorora, simba repulse rakawanda, uye akakodzera kushandiswa mu biomedicine, optical parametric oscillation, uye biological microscopic imaging. Mumazuva ano biological imaging and analysis systems, picosecond lasers dzave maturusi akakosha zvikuru.

Femtosecond laser ilaser yepulse ipfupi zvikuru ine simba guru, inoverengerwa mumafemtoseconds. Iyi tekinoroji yepamusoro yakapa vanhu mikana mitsva yekuyedza isati yamboonekwa uye ine mashandisirwo akakura. Kushandiswa kwelaser yefemtosecond ine simba guru, inopurwa kwenguva pfupi kuti ionekwe kunobatsira zvikuru kune akasiyana-siyana maitiro emakemikari, kusanganisira asi kwete kungogumira pakutsemuka kwemabhondi, kuumbwa kwemabhondi matsva, kuchinjirwa kwemapurotoni nemaerekitironi, isomerization yemakomputa, kupatsanurwa kwemamorekuru, kumhanya, kona, uye kugoverwa kwemamiriro ezvinhu epakati pe reaction uye zvigadzirwa zvekupedzisira, maitiro emakemikari anoitika mumhinduro uye kukanganiswa kwezvinonyungudutsa, pamwe nekukanganiswa kwekufamba kwemamorekuru nekutenderera pamaitiro emakemikari.

Zvikamu zveKushandura Nguva zveNanoseconds, Picoseconds, uye Femtoseconds

1ns (nanosecond) = 0.0000000001 masekondi = 10-9 masekondi

1ps (picosecond) = 0.00000000000001 masekondi = 10-12 masekondi

1fs (femtosecond) = 0.0000000000000001 masekondi = 10-15 masekondi

Midziyo yekugadzira laser ine nanosecond, picosecond, uye femtosecond inowanzoonekwa pamusika inotumidzwa mazita zvichienderana nenguva. Zvimwe zvinhu, zvakaita sesimba rekurova kwemoyo rimwe chete, upamhi hwekurova kwemoyo, frequency yekurova kwemoyo, uye simba rekurova kwemoyo, zvinoitawo basa mukusarudza michina yakakodzera yekugadzirisa zvinhu zvakasiyana. Kana nguva ipfupi, kukanganiswa kwakanyanya pamusoro pechinhu, zvichikonzera mhedzisiro iri nani yekugadzirisa.

Mashandisirwo ePicosecond, Femtosecond, uye Nanosecond Lasers pakurapa

Nanosecond lasers dzinopisa nekuparadza melanin muganda, iyo inozobviswa mumuviri nemasero, zvichikonzera kupera kwemavara ane ruvara. Nzira iyi inowanzoshandiswa pakurapa matambudziko eruvara. Picosecond lasers inoshanda nekukurumidza, ichipwanya zvidimbu zve melanin pasina kukuvadza ganda rakatenderedza. Nzira iyi inoshanda zvinobudirira pakurapa zvirwere zvine ruvara zvakaita se nevus yeOta neBrown cyan nevus. Femtosecond laser inoshanda muchimiro chepulses, iyo inogona kuburitsa simba guru nekukurumidza, zvakanaka pakurapa myopia.

Sisitimu Yekutonhodza yePicosecond, Femtosecond, uye Nanosecond Lasers

Hazvina basa kuti laser ye nanosecond, picosecond kana femtosecond inoshanda sei, zvakakosha kuti uve nechokwadi chekuti musoro we laser unoshanda zvakanaka uye kubatanidza michina ne chiller chelaser Kana michina yelaser yakanyatsogadzirwa, kururamisa tembiricha kunowedzera. TEYU ultrafast laser chiller ine tembiricha yakadzikama ye±0.1°C uye inotonhorera nekukurumidza, izvo zvinoita kuti laser ishande patembiricha yakagadzikana uye ine simba remwenje rakagadzikana, nokudaro zvichivandudza hupenyu hwebasa relaser.TEYU zvinotonhodza zve laser zvinokurumidza dzakakodzera marudzi ese matatu aya emidziyo yelaser.