NANOZARRAChALARNING UChUNChI TARTIBLI NOChIZIQLI OPTIK XUSUSIYATLARIGA “SIRT QATLAM” SO‘NDIRISh HODISASINING TA’SIRI

Mualliflar

  • Qoraboyev Kamoliddin Abdishukurovich

    Geologiya fanlari universiteti

Kalit soʻzlar: vodorodsimon yaqinlashuv, eksiton energiyasi, uchinchi tartibli nochiziqli optik kirituvchanlik, CdSe kvant nuqtalari, kaskadli virtual o‘tishlar, sirt o‘lik qatlami, kvant chegaralanish

Annotatsiya

CdSe kvant nuqtalarining uchinchi tartibli nochiziqli optik kirituvchanligi (χ⁽³⁾) bo‘yicha nazariya (R kamayishi bilan monoton o‘sish) va tajriba R < 2 nm da keskin so‘nish) o‘rtasidagi tafovutni bartaraf etish uchun Boyd, Brus modellari va sirt “o‘lik qatlami” korreksiyasini birlashtiruvchi analitik model taklif etiladi. Model χ⁽³⁾(R)ning monoton bo‘lmagan bog‘liqligini va optimal radiusni Ropt ≈ 2.5 nm bashorat qiladi; hisoblangan qiymatlar (10⁻²⁰ − 10⁻²² m²/V²) CdSe/ZnS-MOF nazariy bahosi va CdTe DFWM o‘lchovlari bilan tartib darajasida mos keladi, alohida (izolyatsiyalangan) kolloid CdSe kvant nuqtalari uchun Z-scan o‘lchovi bilan esa ikki tartibgacha farqlanadi.

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