Te whakapolarisasi o te taiaho

Te whakapolarisasi o te taiaho

Ko te "Polarization" he āhuatanga noa o ngā momo lasers, e whakatauhia ana e te mātāpono hanganga o te laser. Ko tehihi laserka puta mai i te hihi whakaohooho o ngā matūriki e whakaputa ana i te mārama i roto i terēseriHe āhuatanga whakamiharo tō te hihi whakaohooho: ina pā te photon o waho ki tētahi matūriki i roto i te āhua pūngao teitei ake, ka tukuna e te matūriki he photon ka huri ki tētahi āhua pūngao iti iho. He rite tonu te āhua o ngā photon i puta i tēnei tukanga ki ngā photon o tāwāhi. Ina hangaia he awa photon i roto i te laser, ka rite tonu te āhua o ngā photon katoa i roto i te awa photon aratau ki te āhua o ngā photon. Nō reira, me whakapolarized te aratau roa (auau) o te laser.

Kāore ngā taiaho katoa he porowhita. He maha ngā āhuatanga e pāngia ana e te āhua porowhita o te taiaho, tae atu ki:
1. Te whakaata o te resonator: Kia mōhio ai koe he nui ake ngā photon e noho ana hei hanga i ngā wiri pumau i roto i te kōhao, ā, kia puta aimārama taiaho, ko te mata pito o te resonator he mea whakakikorua ki tētahi kiriata whakaata whakarei ake. E ai ki te ture a Fresnel, ko te mahi a te kiriata whakaata paparanga maha ka puta te hurihanga o te mārama whakaata whakamutunga mai i te mārama taiao ki te mārama raina.māramatanga porowhita.
2. Ngā āhuatanga o te reo whakanui: ko te whakaputanga taiaho e ahu mai ana i te ira whakaohooho. Ina tukuna e ngā ngota whakaohooho ngā irahiko i raro i te whakaohooho a ngā irahiko ke, ka wiri ēnei irahiko i te ahunga kotahi (āhua pōraritanga) me ngā irahiko ke, ka taea ai e te taiaho te pupuri i te āhua pōraritanga pumau me te ahurei. Ahakoa ngā huringa iti o te āhua pōraritanga ka tātarihia e te resonator nā te mea kāore e taea te hanga i ngā wiri pumau.

I roto i te tukanga hanga taiaho tūturu, ka tāpirihia te pereti ngaru me te tioata whakapūtātanga ki roto i te taiaho hei whakatika i te āhua pumau o te resonator, kia motuhake ai te āhua whakapūtātanga i roto i te kōhao. Ehara i te mea ka nui ake te kukū o te pūngao taiaho, ka teitei ake hoki te whai huatanga whakaoho, engari ka karohia hoki te ngaronga i puta mai i te kore e taea te wiri. Nō reira, ko te āhua whakapūtātanga o te taiaho e whakawhirinaki ana ki ngā āhuatanga maha pērā i te hanganga o te resonator, te āhua o te reo whakanui me ngā āhuatanga wiri, ā, ehara i te mea he ahurei i ngā wā katoa.