Iwe Unoziva Misiyano Pakati PeNanosecond, Picosecond uye Femtosecond Lasers?

Laser tekinoroji yakafambira mberi nekukurumidza mumakumi mashoma emakore apfuura. Kubva nanosecond laser kusvika picosecond laser kusvika kufemtosecond laser, yakashandiswa zvishoma nezvishoma mukugadzira maindasitiri, ichipa mhinduro kune ese mafambiro ehupenyu. Asi yakawanda sei yaunoziva nezve matatu marudzi e lasers? Ngationei pamwe chete:

Tsanangudzo dzeNanosecond, Picosecond, uye Femtosecond Lasers

Nanosecond laser yakatanga kuunzwa mumunda weindasitiri mukupera kwema1990 se diode-pumped solid-state (DPSS) lasers. Nekudaro, ekutanga akadai lasers aive neakaderera kuburitsa simba remawatts mashoma uye wavelength ye355nm. Nekufamba kwenguva, musika wenanosecond lasers wakura, uye mazhinji ma lasers ave ane pulse durations mumakumi kusvika kumazana ema nanoseconds.

Picosecond laser  is an ultra-short pulse width laser iyo inobudisa picosecond-level pulses. Aya lasers anopa iyo yekupedzisira-ipfupi pulse hupamhi, inogadzirika yekudzokorora frequency, yakakwira pulse simba, uye yakanakira kunyorera mubiomedicine, optical parametric oscillation, uye biological microscopic imaging. Mune yemazuva ano biological imaging uye yekuongorora masisitimu, picosecond lasers ave akawedzera kukosha maturusi.

Femtosecond laser inonzi ultra-short pulse laser ine incredible high intensity, yakaverengerwa mufemtoseconds. Iyi tekinoroji yepamberi yakapa vanhu mikana mitsva yekuyedza isati yamboitika uye ine maapplication akafara. Kushandiswa kweiyo yekupedzisira-yakasimba, pfupi-pulsed femtosecond laser yezvinangwa zvekuona inonyanya kubatsira kune akasiyana makemikari maitiro, kusanganisira asi kwete kuganhurirwa kune bond cleavage, nyowani bhondi kuumbwa, proton uye erekitironi kutamiswa, komputa isomerization, mamolecular dissociation, kumhanya, kona, uye kugoverwa kwenyika kwemaitiro epakati uye zvigadzirwa zvekupedzisira, magadzirirwo emakemikari nemagadzirirwo anoitika mukugadziriswa kwema molecular. uye kutenderera pane kuita kwemakemikari.

Nguva Yekushandura Zvikamu zveNanoseconds, Picoseconds, uye Femtoseconds

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

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

1fs (femtosecond) = 0.000000000000001 masekondi = 10-15 masekondi

Iyo nanosecond, picosecond, uye femtosecond laser yekugadzirisa michina inowanzoonekwa pamusika inopihwa mazita zvichienderana nenguva. Zvimwe zvinhu, senge simba rekupuruzira rimwe chete, upamhi hwekupuruzira, pulse frequency, uye pulse peak simba, zvinoitawo basa mukusarudza michina yakakodzera yekugadzirisa zvinhu zvakasiyana. Iyo ipfupi nguva, iyo inokonzeresa kushoma pane chinhu chepamusoro, zvichikonzera zvirinani kugadzirisa maitiro.

Kushandiswa Kwekurapa kwePicosecond, Femtosecond, uye Nanosecond Lasers

Nanosecond lasers inosarudza kupisa uye kuparadza melanin muganda, iyo inobva yabviswa kubva mumuviri nemasero, zvichikonzera kupera kwemavara ane pigmented. Iyi nzira inowanzoshandiswa pakurapa pigmentation disorders. Picosecond lasers inoshanda nekumhanya kwakanyanya, ichipwanya melanin zvimedu pasina kukuvadza ganda rakatenderedza. Iyi nzira inonyatso kurapa pigmented zvirwere zvakadai nevus of Ota uye Brown cyan nevus.Femtosecond laser unoshanda muchimiro pulses, izvo zvinogona emit hombe simba pakarepo, mukuru pakurapa myopia.

Kutonhora Sisitimu yePicosecond, Femtosecond, uye Nanosecond Lasers

Hazvina mhosva iyo nanosecond, picosecond kana femtosecond laser, zvinodikanwa kuve nechokwadi chekushanda kwakajairwa kwemusoro welaser uye kubatanidza michina ine  laser chiller . Iyo yakanyanya kurongeka iyo laser midziyo, iyo inokwidza tembiricha yekudzora kurongeka. TEYU ultrafast laser chiller ine tembiricha yakadzikama ye ± 0.1 ° C uye nekukurumidza kutonhora, iyo inova nechokwadi chekuti laser inoshanda pakupisa kwekugara uye ine yakagadzikana danda kubuda, nekudaro inovandudza hupenyu hwesevhisi yelaser.  TEYU ultrafast laser chillers  akakodzera kune ese matatu marudzi emidziyo yelaser.