Si Matapihi


  • Rauemi: Si 
  • Taurangi Tolerance: + 0.0 / -0.1mm 
  • Tolerance Matotoru: ± 0.1mm 
  • Te Tika Mata: λ/4@632.8nm 
  • Whakataurite: <1 ' 
  • Kounga Mata: 60-40
  • Maama Aperture: > 90%
  • Bevelling: <0.2 × 45 °
  • Paninga: Hoahoa Ritenga
  • Taipitopito Hua

    Tawhā Hangarau

    Pūrongo whakamātautau

    Ko te silicon he karaihe mono e whakamahia ana i roto i te kaiarahi haurua-kore, engari kaore e ngongo i te 1.2μm ki te 6μm rohe IR. Ka whakamahia i konei hei waahanga whika mo nga tono rohe IR.
    Ko te silicon e whakamahia ana hei matapihi whatu i roto i te 3 ki te 5 micron band me te mea hei tira mo te hanga taatari whatu. He poraka nui o te Silicon me nga mata oro kua whakamahia hei neutron i roto i nga whakamatautau ahupūngao.
    Ko te silicon e whakatipuhia ana e Czochralski nga tikanga kume (CZ) ana kei roto etahi oxygen e puta ai te peepi ngongo i te 9 microns. Hei karo i tenei, ka taea te whakarite i te Silicon e tetahi mahinga-Float-Rohe (FZ). Ko te Silicon Optical te tikanga he iti noa te kopae (5 ki te 40 ohm cm) mo te whakawhiti pai i runga ake i te 10 microns. Kei te Silicon tetahi roopu haere 30 ki te 100 miihini e whai kiko ana i roto i nga rauemi whakakinokino tino kaha. Ko te kakano he Boron (p-momo) me te Phosphorus (n-momo).
    Tono:
    • He pai mo nga tono 1.2 ki te 7 μm NIR
    • Aratuku 3 ki te 12 μm paninga whakaata-whakaata
    • He pai mo nga tono taumaha taumaha
    Āhuahira:
    • Ko enei matapihi silicon kaore e tukuna i te rohe 1µm ki raro ranei, no reira ko tana tono matua kei nga rohe IR.
    • Na te kaha o te kawe o te waiariki, he pai ki te whakamahi hei whakaata laser kaha nui
    ▶ He matapihi whakarewa te kara o te matapihi silicon; he whakaata me te ngongo engari kaore e tukuna ki nga rohe e kitea ana.
    ▶ Ko te whakaata o te matapihi o te silicon ka hua te ngaronga o te 53%. (te ine i te raraunga 1 whakaata whakaata i te 27%)

    Awhe Tuku: 1.2 ki te 15 μm (1)
    Tohu Whakaoho: 3.4223 @ 5 μm (1) (2)
    Ngaronga Whakaata: 46.2% i te 5 μm (2 papa)
    Te Whakarea o te Ngongo: 0,01 cm-1 i te 3 μm
    Tihi Reststrahlen: n / a
    dn / dT: 160 x 10-6 / ° C (3)
    dn / dμ = 0: 10.4 μm
    Taumaha: 2.33 g / cc
    Ira rewa: 1420 ° C
    Mahinga Hahana: 163.3 W m-1 K-1 i te 273 K
    Roha Thermal: 2.6 x 10-6 / i te 20 ° C
    Pakeke: Knoop 1150
    Raukaha Raa Motuhake: 703 J Kg-1 K-1
    Tuuturu Hiko: 13 i te 10 GHz
    Whakauru Tamariki (E): 131 GPa (4)
    Whakataunga Huti (G): 79.9 GPa (4)
    Whakauru Nui (K): 102 GPa
    Mahinga Whakakinakina: C11= 167; C12= 65; C44= 80 (4)
    Tepe Elastic Maama: 124.1MPa (18000 psi)
    Taurangi Poisson: 0.266 (4)
    Memehatanga: Kore e rewa i te wai
    Taumaha Molecular: 28.09
    Akomanga / Hanganga: Taimana Cubic, Fd3m

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