Studi Teoretis Respon Optis Dimer Simetris
DOI:
https://doi.org/10.26418/pf.v11i2.65005Abstract
Telah dilakukan studi secara teoretis untuk mempelajari respons optis sistem yang terdiri dari dua SQD yang dieksitasi dengan cahaya monokromatik. SQD dimodelkan sebagai three-level system dengan menggunakan formalisme density matrix 3 x 3. Respons optis tersebut didapatkan dengan menyelesaikan persamaan gerak elemen density matrix. Elemen density matrix diselesaikan secara numerik dengan metode Runge-Kutta (4,5). Elemen density matrix menghasilkan nilai populasi dan nilai koheren yang digunakan untuk menghitung respons optis sistem quantum dimer. Hasil penelitian menunjukkan bahwa intensitas medan pengeksitasi memberikan pengaruh pada respons optis SQD. Respons optis tersebut berupa dinamika waktu populasi dan spektrum serapan. Pada dinamika waktu populasi, sistem menunjukkan bahwa meningkatnya intensitas medan pengeksitasi menyebabkan osilasi populasi juga meningkat. Pada spektrum serapan, semakin besar intensitas yang digunakan menyebabkan semakin lebar interval daya serapan dan semakin tinggi puncak spektrum serapan yang dihasilkan.
Kata Kunci : SQD, Dimer, Spektrum serapan, osilasi Rabi
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Date: 24-05-2023
Prisma Fisika
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