ʻO ka hui pū ʻana o ke kukui he aniani semi-transmissive e hui pū ana i ʻelua (a ʻoi aku paha) mau nalu o ka mālamalama i loko o kahi ala ʻike hoʻokahi ma o ka hoʻouna ʻana a me ka noʻonoʻo ʻana, kēlā me kēia.Hoʻouna maʻamau ka mea hoʻohui kukuna i ke kukui infrared a hōʻike i ke kukui ʻike ʻia (hoʻohana ʻia nā hui pū ʻana i ka wā e hoʻohana ai ka laser infrared CO2 mana kiʻekiʻe i ka laser diode ʻike ʻia helium-neon e hoʻopololei i ke ala māmā).
1. ʻO ka hui pū ʻana o ka lāʻau hele pōkole pōkole (45 degere): T>97%@960-980nm/R>97%@1020-1040nm
2. Hoʻohui kaola lōʻihi (45 degere): R>95%@1041nm/T>95%@1065nm
ka ʻoki ʻana i ka laser, ka welding laser, ka pale ʻana i ka laser a me ka lāʻau lapaʻau laser a me nā māla ʻē aʻe.