Physica B: Condensed Matter, cilt.730, 2026 (SCI-Expanded, Scopus)
In this study, we investigate the effects of temperature and hydrostatic pressure on the linear and nonlinear optical properties of a Tietz–Hua quantum well. The electronic subband energies and envelope wave functions are obtained by solving the Schrödinger equation within the effective mass and parabolic band approximations, and the optical coefficients are derived using the compact density matrix formalism. Our results show that increasing temperature induces a clear blueshift in all optical resonances, together with a reduction in peak amplitudes. As the temperature rises from 100 K to 500 K, resonance energies shift by approximately 3–8 meV, while peak magnitudes decrease by about 25–40%. In contrast, increasing hydrostatic pressure produces a redshift of about 5–12 meV for pressures up to 20 kbar and enhances the corresponding peak amplitudes. These findings demonstrate the strong thermodynamic tunability of the Tietz–Hua quantum well and its potential for temperature- and pressure-controlled optoelectronic and photonic applications.