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E te iloa le eseesega i le va o le Nanosecond, Picosecond ma Femtosecond Lasers?

Ua televave le alualu i luma o tekinolosi laser i nai tausaga talu ai. Mai le laser nanosecond i le laser picosecond i le laser femtosecond, ua faasolosolo malie ona faʻaaogaina i fale gaosi oloa, saunia fofo mo soʻo se tulaga o le olaga. Ae o le a le tele o lou iloa e uiga i nei ituaiga 3 lasers? O lenei tusiga o le a talanoa e uiga i a latou faʻamatalaga, taimi faʻaliliu iunite, talosaga faʻafomaʻi ma faiga faʻamafanafana vai.

Ua televave le alualu i luma o tekinolosi laser i nai tausaga talu ai. Mai le laser nanosecond i le laser picosecond i le laser femtosecond, ua faasolosolo malie ona faʻaaogaina i fale gaosi oloa, saunia fofo mo soʻo se tulaga o le olaga. Ae o le a le tele o lou iloa e uiga i nei ituaiga 3 lasers? Tatou su'esu'e faatasi:

 

Fa'amatalaga o Nanosecond, Picosecond, ma Femtosecond Lasers

Nanosecond leisa na muamua faʻafeiloaʻi i totonu o fale gaosi oloa i le faaiuga o le 1990s e pei o lasers malo-malo (DPSS). Ae ui i lea, o le lasers muamua na i ai le mana maualalo o ni nai watts ma le umi o le galu o le 355nm. I le aluga o taimi, o le maketi mo nanosecond lasers ua matua, ma o le tele o lasers ua i ai nei le umi o le pulupulu i le sefulu i le selau o nanoseconds.

Picosecond leisa  ose leisa lautele pu'upu'u pu'upu'u tele lea e fa'aoso ai pulusi tulaga-picosecond. O nei lasers e ofoina atu le lautele puʻupuʻu puʻupuʻu, fetuutuunaʻi taimi fai soo, malosi malosi pulupulu, ma e lelei mo talosaga i biomedicine, optical parametric oscillation, ma biological microscopic imaging. I faʻaonaponei faʻataʻitaʻiga ma suʻesuʻega faiga, picosecond lasers ua avea ma meafaigaluega sili atu ona taua.

Femtosecond leisa ose leisa pu'upu'u pu'upu'u tele ma le malosi tele, fuafua ile femtoseconds. O lenei fa'atekonolosi fa'atekonolosi ua maua ai e tagata avanoa fa'ata'ita'i fou e le'i tupu muamua ma e tele fo'i ona fa'aoga. O le faʻaaogaina o se femtosecond laser e sili ona malosi, puʻupuʻu puʻupuʻu mo faʻamoemoega e iloa ai e sili ona aoga mo faʻalavelave faʻamaʻi eseese, e aofia ai ae le faʻatapulaʻaina i le vaeluaga o fusi, faʻavaega fou, faʻafeiloaʻiga o le proton ma le eletise, isomerization faʻapipiʻi, faʻamavaeina mole, saoasaoa, tulimanu, ma le tufatufaina atu o tali ma mea mulimuli, faʻamaʻi faʻamaʻi e pei o le aʻafiaga o vaifofo, ma faʻalavelave faʻafuaseʻi. fe'avea'i i luga o fa'alavelave fa'ama'i.

 

Taimi Liua Iunite mo Nanoseconds, Picoseconds, ma Femtoseconds

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

1ps (picosecond) = 0.0000000000001 sekone = 10-12 sekone

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

O le nanosecond, picosecond, ma femtosecond masini fa'aogaina leisa e masani ona va'aia i le maketi e fa'aigoaina e fa'atatau i le taimi. O isi mea, e pei o le malosi o le pulupulu tasi, le lautele o le pulupulu, le malosi o le pulupulu, ma le malosi o le pulupulu, e iai fo'i se sao i le filifilia o meafaigaluega talafeagai mo le gaosia o mea eseese. O le puʻupuʻu o le taimi, o le itiiti ifo o le aʻafiaga i luga o le meafaitino, ma maua ai se faʻaleleia lelei o le gaioiga.

 

Talosaga Faafomai o Picosecond, Femtosecond, ma Nanosecond Lasers

O lasers Nanosecond e fa'amalo ma fa'aumatia le melanin i totonu o le pa'u, ona fa'aumatia lea mai le tino e sela, ma i'u ai i le mou atu o manu'a lanu. O lenei metotia e masani ona faʻaaogaina mo togafitiga o faʻafitauli o le pigmentation. Picosecond lasers e galue i se saoasaoa maualuga, talepe i lalo vaega melanin e aunoa ma le faaleagaina o le paʻu o loʻo siomia ai. O lenei metotia e togafitia lelei faʻamaʻi pigmented e pei o nevus o Ota ma Brown cyan nevus.Femtosecond leisa faagaoioia i le tulaga o pulses, lea e mafai ona emit mana tele i se vave, lelei mo le togafitiga o myopia.

Faiga malulu mo Picosecond, Femtosecond, ma Nanosecond Lasers

Po o le a lava le nanosecond, picosecond poʻo le femtosecond laser, e tatau ona faʻamautinoa le faʻaogaina masani o le ulu laser ma faʻapipiʻi meafaigaluega ma se  fa'aalili leisa . O le sili atu le sa'o o masini laser, o le maualuga lea o le sa'o o le fa'atonutonuina o le vevela. TEYU ultrafast laser chiller o loʻo i ai le faʻamautu o le vevela o le ± 0.1 ° C ma le faʻafefe vave, lea e faʻamautinoa ai o loʻo galue le leisa i se vevela faifai pea ma o loʻo i ai se faʻamautu faʻamautu, ma faʻaleleia ai le ola tautua o le laser.  TEYU fa'a'alili leisa ultrafast  e talafeagai mo nei ituaiga uma e tolu o meafaigaluega laser.

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