ʻIke ʻoe i nā ʻokoʻa ma waena o Nanosecond, Picosecond a me Femtosecond Lasers?

Ua holomua ka ʻenehana laser i nā makahiki i hala iho nei. Mai ka laser nanosecond a i ka laser picosecond a i ka laser femtosecond, ua hoʻohana lohi ʻia i ka hana ʻoihana, e hāʻawi ana i nā hopena no nā ʻano āpau o ke ola. Akā pehea ka nui o kāu ʻike e pili ana i kēia mau ʻano lasers 3? E ʻike pū kāua:

Wehewehe o Nanosecond, Picosecond, a me Femtosecond Lasers

Nanokekona laser ua hoʻokomo mua ʻia i loko o ke kahua ʻoihana i ka hopena o 1990s e like me nā lasers diode-pumped solid-state (DPSS). Eia naʻe, ʻo nā lasers mua loa he mana haʻahaʻa haʻahaʻa o kekahi mau watts a me kahi hawewe o 355nm. I ka hala ʻana o ka manawa, ua oʻo ka mākeke no nā laser nanosecond, a ʻo ka hapa nui o nā lasers i kēia manawa ua loaʻa nā manawa pulse i nā ʻumi a hiki i nā haneli o nā nanoseconds.

Laser Picosecond  ʻO ia ka laser ākea puʻupuʻu pōkole loa e hoʻokuʻu ana i nā pulse picosecond-level. Hāʻawi kēia mau lasers i ka laulā puʻupuʻu ultra-pōkole, hiki ke hoʻololi hou ʻia, ka ikehu pulse kiʻekiʻe, a he kūpono ia no nā noi i ka biomedicine, optical parametric oscillation, a me ka biological microscopic imaging. I loko o nā ʻōnaehana kiʻi biological hou a me nā ʻōnaehana loiloi, ua lilo nā laser picosecond i mea waiwai nui.

ʻO ka laser Femtosecond ʻO ia ka laser pulse pōkole loa me ka ikaika kiʻekiʻe loa, i helu ʻia i nā femtoseconds. Ua hāʻawi kēia ʻenehana kiʻekiʻe i nā kānaka i nā mea hoʻokolohua hou ʻole i ʻike ʻole ʻia a loaʻa nā noi ākea. ʻOi aku ka maikaʻi o ka hoʻohana ʻana i ka laser femtosecond ultra-ikaika, pōkole pōkole no ka ʻike ʻana no nā hopena kemika like ʻole, e komo pū ana akā ʻaʻole i kaupalena ʻia i ka cleavage paʻa, hoʻokumu paʻa hou, proton a me electron transfer, isomerization compound, dissociation molecular, wikiwiki, kihi, a me ka māhele mokuʻāina o nā intermediates hopena a me nā huahana hope, nā hopena kemika e like me ka hopena o ka hopena o ka hopena a me ka hopena o ka hopena o ka hopena, a me ka hopena o ka hopena. ka hoʻololi ʻana ma luna o nā hopena kemika.

Nā ʻāpana hoʻololi manawa no nā Nanokekona, Picoseconds, a me Femtoseconds

1ns (nanokekona) = 0.0000000001 kekona = 10-9 kekona

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

1fs (femtokekona) = 0.000000000000001 kekona = 10-15 kekona

ʻO ka nanosecond, picosecond, a me ka femtosecond laser mea hana i ʻike pinepine ʻia ma ka mākeke ua kapa ʻia ma muli o ka manawa. ʻO nā mea ʻē aʻe, e like me ka ikehu pulse hoʻokahi, ka laulā o ka pulse, ka pulse frequency, a me ka pulse peak power, e pāʻani pū kekahi i ke koho ʻana i nā mea pono no ka hana ʻana i nā mea like ʻole. ʻO ka pōkole o ka manawa, ʻoi aku ka liʻiliʻi o ka hopena ma luna o ka ʻili waiwai, e hopena i ka hopena kaʻina hana ʻoi aku ka maikaʻi.

Nā Lapaʻau Lapaʻau o Picosecond, Femtosecond, a me Nanosecond Lasers

Hoʻomaʻamaʻa a hoʻopau nā laser Nanosecond i ka melanin i loko o ka ʻili, a laila hoʻopau ʻia mai ke kino e nā cell, e hopena ai i ka mae ʻana o nā ʻili pigmented. Hoʻohana pinepine ʻia kēia ʻano no ka mālama ʻana i nā maʻi pigmentation. Ke hana nei nā laser Picosecond i ka wikiwiki, e wāwahi ana i nā ʻāpana melanin me ka ʻole e hōʻino i ka ʻili a puni. Hoʻohana maikaʻi kēia ʻano hana i nā maʻi pigmented e like me nevus o Ota a me Brown cyan nevus.Femtosecond laser hana ma ke ʻano o nā pulses, hiki ke hoʻokuʻu i ka mana nui i ka manawa koke, maikaʻi no ka mālama ʻana i ka myopia.

Pūnaehana Hoʻoluʻu no Picosecond, Femtosecond, a me Nanosecond Lasers

ʻAʻole pili i ka nanosecond, picosecond a i ʻole femtosecond laser, pono e hōʻoia i ka hana maʻamau o ke poʻo laser a hoʻohui i nā mea hana me kahi  mea hoʻoheheʻe laser . ʻOi aku ka pololei o nā mea hana laser, ʻoi aku ka kiʻekiʻe o ka hoʻomalu ʻana i ka wela. ʻO TEYU ultrafast laser chiller he paʻa wela o ± 0.1 ° C a me ka hoʻomaha wikiwiki, e hōʻoiaʻiʻo ana e hana ka laser i kahi mahana mau a loaʻa kahi puka paʻa paʻa, a laila e hoʻomaikaʻi ai i ke ola lawelawe o ka laser.  ʻO nā mea hoʻoheheʻe laser ultrafast TEYU  kūpono no kēia mau ʻano mea hana laser ʻekolu.