Nonlinear optical properties of a semi-exponential quantum wells: Effect of high-frequency intense laser field

Yesilgul U., UNGAN F., Sakiroglu S., Sari H., KASAPOĞLU E., Sokmen I.

OPTIK, cilt.185, ss.311-316, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 185
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.ijleo.2019.03.126
  • Dergi Adı: OPTIK
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.311-316
  • Anahtar Kelimeler: Semi-exponential quantum well, Nonlinear optical properties, Intense laser field, APPLIED ELECTROMAGNETIC-FIELDS, REFRACTIVE-INDEX CHANGES, ABSORPTION COEFFICIENTS, DONOR IMPURITY, TRANSITIONS, STATES
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this present work, the effect of non-resonant, mono-chromatic intense laser field (ILF) on the linear and nonlinear optical properties of a semi-exponential quantum well (SEQW) is investigated theoretically within the effective-mass and envelope wave function approach. The bound subband energy levels and their envelope wave functions of the structure are calculated by using the diagonalization method. The optical properties of the system are obtained by using the compact-density matrix approach. The obtained numerical results show that the applied ILF and structure parameters have a significant impact on the optical properties of these structures, such as the linear, third-order nonlinear and total absorption coefficients and relative refractive index changes. Furthermore, from the findings of this study, it has been concluded that the linear and nonlinear optical properties in a SEQW under the ILF can be tuned by changing structure parameters, such as the effective range and depth of the system.