Hurihia te tere o te pā o tetaiaho poto-tino kaha
Ko ngā taiaho poto-tino-poto e pā ana ki ngā pāoro taiaho me te whānui pāoro o ngā tekau me ngā rau o ngā femtoseconds, te kaha tihi o ngā terawatts me ngā petawatts, ā, ko te kaha arotahi o te mārama neke atu i te 1018 W/cm2. He whānui te whakamahinga o te taiaho poto-tino-poto me tōna pūtake irahiko tino-tino me te pūtake matūriki kaha-teitei i roto i ngā huarahi rangahau taketake maha pērā i te ahupūngao kaha-teitei, te ahupūngao matūriki, te ahupūngao plasma, te ahupūngao karihi me te ahupūngao whetū, ā, ko ngā hua o ngā rangahau pūtaiao ka taea te whakamahi ki ngā ahumahi hangarau teitei e tika ana, te hauora hauora, te pūngao taiao me te haumarutanga ā-motu. Mai i te hanganga o te hangarau whakanui pāoro chirped i te tau 1985, ka puta te watt pāoro tuatahi o te ao.rēseriI te tau 1996, me te otinga o te laser 10-watt tuatahi o te ao i te tau 2017, ko te arotahi matua o te laser poto-tino-rahi i mua ko te whakatutuki i te "mārama tino kaha". I ngā tau tata nei, kua whakaatuhia e ngā rangahau i raro i te āhua o te pupuri i ngā pāorooro laser tino-rahi, ki te taea te whakahaere i te tere tuku pāorooro o te laser poto-tino-rahi, ka rua pea te hua me te haurua o te kaha i roto i ētahi tono ā-tinana, e tika ana kia whakaitihia te tauine o te poto-tino-rahi.ngā taputapu taiaho, engari ka whakapai ake i tōna pānga i roto i ngā whakamātautau ahupūngao taiaho mara-tiketike.
Te whakapōturitanga o te mua o te pā o te taiaho poto-tino kaha
Hei whiwhi i te mana tino teitei i raro i te kaha iti, ka whakaitihia te whānui o te pāoro ki te 20~30 femtoseconds mā te whakanui ake i te whānui o te whiwhinga. Ko te kaha pāoro o te taiaho poto-poto 10-ngutu-watt tata ki te 300 joules, ā, ko te paepae kino iti o te kupenga kōpeke ka nui ake te whakatuwheratanga hihi i te 300 mm. Ko te hihi pāoro me te whānui pāoro 20~30 femtosecond me te whakatuwheratanga 300 mm he ngāwari ki te kawe i te whakapōturitanga hononga ā-wāhanga, inā koa te whakapōturitanga o te mua pāoro. E whakaatu ana te Pikitia 1 (a) i te wehenga ā-wāhanga o te mua pāoro me te mua wāhanga i puta mai i te mararatanga o te tūranga hihi, ā, e whakaatu ana te mea tuatahi i te "tītaha ā-wāhanga-wā" e pā ana ki te mea whakamutunga. Ko tētahi atu ko te "piko o te wāhi-wā" uaua ake i puta mai i te pūnaha arotahi. E whakaatu ana te Pikitia 1 (b) i ngā pānga o te mua pāoro pai, te mua pāoro hianga me te mua pāoro piko ki te whakapōturitanga ā-wāhanga-wāhanga o te mara mārama i runga i te ūnga. Nā reira, ka tino heke te kaha o te mārama arotahi, kāore e pai mō te tono mara kaha o te taiaho poto-tino.
PIK. 1 (a) te piko o te mua o te pā i puta mai i te porowhita me te whatanga, me (b) te pānga o te whakapōturi o te mua o te pā ki te mara mārama ā-wāhi-wā i runga i te ūnga
Te whakahaere tere o te pā o te ultra-kahataiaho poto rawa
I tēnei wā, kua whakaatuhia te uara tono o ngā hihi Bessel i hangaia e te taupatupatu kōniko o ngā ngaru papatahi i roto i te ahupūngao taiaho mara-teitei. Mena he tohatoha mua o te taupatupatu kōniko he taupatupatu ā-tuaka, ko te kaha pokapū āhuahanga o te kete ngaru hihi-X i hangaia e whakaaturia ana i te Pikitia 2 ka taea te noho pūmau ki runga i te tūāpapa, ki raro i te tūāpapa, ki runga i te tūāpapa whakateretere, me te raro i te tūāpapa whakaheke. Ahakoa te whakakotahitanga o te whakaata whakarerekē me te kaiwhakatikatika mārama ā-wāhi momo āhuahanga ka taea te whakaputa i te āhua ā-wāhi-wā o te mua o te taupatupatu, kātahi ka puta he tere tuku whakahaere-pūmau. Ka taea e te pānga ā-tinana me tana hangarau whakarerekētanga i runga ake nei te huri i te "whakarerekētanga" o te mua o te taupatupatu ki te "whakahaere" o te mua o te taupatupatu, kātahi ka tutuki te kaupapa o te whakarerekē i te tere tuku o te taiaho poto-tino kaha.
PIK. 2 Kei te pokapū āhuahanga o te rohe taupatupatu ngā (a) pūmau tere atu i te mārama, (b) pūmau raro mārama, (c) tere atu i te mārama, me te (d) puhoi raro mārama i hangaia e te taupatupatu.
Ahakoa i mua ake te kitenga o te whakapōturitanga o mua o te pāoro i te taiaho poto-rahi, kua whānuitia te aro ki tēnei āhuatanga me te whanaketanga o te taiaho poto-rahi. Mō te wā roa, kāore i te pai ki te whakatutuki i te whāinga matua o te taiaho poto-rahi - te kaha o te mārama arotahi-rahi, ā, kua mahi ngā kairangahau ki te pehi, ki te whakakore rānei i ngā whakapōturitanga o mua o te pāoro. I ēnei rā, i te whanaketanga o te "whakapōturitanga o mua o te pāoro" hei "mana whakahaere o mua o te pāoro", kua tutuki i a ia te whakahaere i te tere tuku o te taiaho poto-rahi, e whakarato ana i ngā tikanga hou me ngā whai wāhitanga hou mō te whakamahinga o te taiaho poto-rahi i roto i te ahupūngao taiaho mara-teitei.
Wā tuku: Mei-13-2024