Ma taqaanaa farqiga u dhexeeya Nanosecond, Picosecond iyo Femtosecond Lasers?

Tiknoolajiyadda laysarka ayaa si xawli ah u horumartay tobanaankii sano ee la soo dhaafay. Laga bilaabo nanosecond laser ilaa picosecond laser ilaa femtosecond laser, si tartiib tartiib ah ayaa loogu dabaqay wax soo saarka warshadaha, taasoo xal u siinaysa dhammaan qaybaha nolosha. Laakiin intee in le'eg ayaad ka taqaanaa saddexdan nooc ee laysarka? Aan isla ogaano:

Qeexitaannada Nanosecond, Picosecond, iyo Femtosecond Lasers

Laser-ka Nanosecond waxaa markii ugu horreysay lagu soo bandhigay warshadaha dabayaaqadii 1990-meeyadii iyadoo loo adeegsanayo laser-ka diode-pumped solid-state (DPSS). Si kastaba ha ahaatee, laser-yadii ugu horreeyay ee noocan oo kale ah waxay lahaayeen awood yar oo wax soo saar ah oo ah dhowr watts iyo hirar dhererkoodu yahay 355nm. Waqti ka dib, suuqa laser-ka nanosecond wuu bislaaday, laser-yada badankoodna hadda waxay leeyihiin muddo garaac ah tobanaan ilaa boqolaal nanoseconds ah.

Laser-ka Picosecond waa laser ballaca garaaca oo aad u gaaban kaas oo soo saara garaaca heerka picosecond. Laser-yadani waxay bixiyaan ballaca garaaca oo aad u gaaban, soo noqnoqoshada ku celcelinta ee la hagaajin karo, tamar garaac oo sare, waxayna ku habboon yihiin isticmaalka daawada biomedicine, oscillation-ka parametric-ga indhaha, iyo sawir-qaadista microscopic-ga bayoolojiga. Nidaamyada casriga ah ee sawir-qaadista iyo falanqaynta bayoolojiga, laser-ka picosecond waxay noqdeen qalab aad muhiim u ah.

Laser-ka Femtosecond waa laser garaaca wadnaha oo aad u gaaban oo leh xoog aad u sarreeya, oo lagu xisaabiyo ilbiriqsiyo femtosecond. Tiknoolajiyaddan horumarsan waxay siisay aadanaha fursado tijaabo oo cusub oo aan hore loo arag waxayna leedahay codsiyo ballaaran. Isticmaalka laser femtosecond oo aad u xoog badan, oo garaac gaaban leh ujeeddooyin ogaansho ayaa si gaar ah faa'iido ugu leh falgallada kiimikada ee kala duwan, oo ay ku jiraan laakiin aan ku xaddidnayn kala-goynta xidhmada, sameynta xidhmada cusub, wareejinta proton iyo elektaroonada, isomerization isku-dhafan, kala-goynta molecular, xawaaraha, xagasha, iyo qaybinta xaaladda ee dhexdhexaadinta falcelinta iyo alaabada kama dambaysta ah, falcelinta kiimikada ee ka dhacda xalalka iyo saameynta dareerayaasha, iyo sidoo kale saameynta gariirka molecular iyo wareegga falgallada kiimikada.

Cutubyada Beddelka Waqtiga ee Nanoseconds, Picoseconds, iyo Femtoseconds

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

1 ilbiriqsi (picosecond) = 0.00000000000001 ilbiriqsi = 10-12 ilbiriqsi

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

Qalabka farsamaynta laser-ka ee nanosecond, picosecond, iyo femtosecond ayaa si caadi ah looga arkaa suuqa waxaana lagu magacaabaa waqtiga. Qodobbada kale, sida tamarta hal garaaca, ballaca garaaca, soo noqnoqoshada garaaca, iyo awoodda ugu sarreysa garaaca, ayaa sidoo kale door ka ciyaara xulashada qalabka ku habboon ee lagu farsameeyo agabyada kala duwan. Waqtiga oo gaaban, saameynta yar ee dusha sare ee maaddada, taasoo keenta saameyn farsamayn oo wanaagsan.

Adeegsiga Caafimaadka ee Laser-yada Picosecond, Femtosecond, iyo Nanosecond

Laser-ka Nanosecond wuxuu si gaar ah u kululeeyaa oo u burburiyaa melanin-ka maqaarka, kaas oo ka dibna unugyada ka saaraan jirka, taasoo keenta in nabarrada midabka leh ay libdhaan. Habkan waxaa badanaa loo isticmaalaa daaweynta cilladaha midabka. Laser-ka Picosecond wuxuu ku shaqeeyaa xawaare sare, isagoo jebiya walxaha melanin-ka iyada oo aan waxyeello u geysan maqaarka ku xeeran. Habkani si wax ku ool ah ayuu u daweeyaa cudurrada midabka leh sida nevus of Ota iyo Brown cyan nevus. Laser-ka Femtosecond wuxuu u shaqeeyaa qaab garaaca wadnaha, kaas oo soo saari kara awood weyn isla markiiba, oo aad ugu fiican daaweynta myopia.

Nidaamka Qaboojinta ee Lasers-ka Picosecond, Femtosecond, iyo Nanosecond

Iyadoo aan loo eegin nanosecond, picosecond ama femtosecond laser, waxaa lagama maarmaan ah in la hubiyo shaqada caadiga ah ee madaxa laysarka oo qalabka lagu xiro Qaboojiyaha laysarka . Inta qalabka laysarka uu sax yahay, ayaa saxnaanta xakamaynta heerkulka sare u kacda. TEYU qaboojiyaha laysarka ee aadka u degdega badan wuxuu leeyahay xasillooni heerkul ah ±0.1°C iyo qaboojin degdeg ah, taas oo hubinaysa in laysarka uu ku shaqeeyo heerkul joogto ah oo uu leeyahay wax soo saar iftiin oo deggan, taasoo hagaajinaysa cimriga adeegga laysarka.TEYU Qaboojiyeyaasha laysarka ee aadka u degdeg badan waxay ku habboon yihiin dhammaan saddexdan nooc ee qalabka laysarka.