Cd0,5Zn0,5S KVANT NUQTALARI VA BO‘YOQLARNING ASSOTSIATSIYALARNING OPTIK CHEGARALANISHI, NOCHIZIQLI SINISH VA NOCHIZIQLI YUTULISHI.
Abstract
Eritrozin bo‘yog‘i bilan bog‘liq bo‘lgan qotishma Cd0,5Zn0,5S kvant nuqtalarining optik cheklash xususiyatlari 532 nm, 40 ps impulslar yordamida tahlil qilinadi. Biz ko‘rsatamizki, to‘yingan yutilish, teskari to‘yingan yutilish va ikki fotonli yutilishning birgalikdagi ta'siri 1 mJ dan ortiq impuls energiyasida 532 nm nurlanishning optik cheklanishiga olib keladi. Turli xil organik bo‘yoqlar bilan bog‘liq bo‘lgan bu kvant nuqtalarining nochiziqli sinishi va nochiziqli yutilishi 1064 nm va 532 nm nurlanish yordamida o‘rganildi. Cd0,5Zn0,5S kvant nuqtalarining nochiziqli sinish va nochiziqli yutilish koeffitsienti λ= 1064 nm da 2 × 10 -13 Vt sm-2 va 1,2 × 10 -8 Vt sm -1 bo‘lishi uchun o‘lchandi. Cd0,5Zn0,5S kvant nuqtalari va eritrozinning teskari to‘yingan yutulishi λ= 532 nm da deyarli 2 marta kattaroq edi. Yuqori tartibli garmonik hosil qilish uchun ushbu kvant nuqtalarining potentsial qo‘llanilishi muhokama qilinadi.
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