Внесок двофотонних електронних переходiв у формування активної динамiчної провiдностi трибар’єрних резонансно-тунельних структур iз постiйним електричним полем

• Дата: 2019
• Автор: Boyko, I. V.
• Формат: Стаття
• Мова: English; Ukrainian
• Опубліковано: Publishing house "Academperiodika" 2019
• Теми: резонансно-тунельна структура; квантовий каскадний лазер; квантовий каскадний детектор; активна динамiчна провiднiсть; двофотонний електронний перехiд; resonance tunneling structure; quantum cascade laser; quantum cascade detector; active dynamic conductivity; two-photon electronic transition; -
• Онлайн доступ: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019130
• Назва журналу: Ukrainian Journal of Physics

The theory of active dynamic conductivity in a three-barrier resonance tunneling structure subjected to the combined action of a weak electromagnetic field and a longitudinal dc electric field is developed with regard for the contribution of laser-induced one- and two-photon electronic transitions with different frequencies. For this purpose, the full Schr¨odinger equation is solved in the effective mass approximation and with the use of the model of rectangular potential wells and barriers for an electron. The maximum contribution of two-photon transitions to the formation of the total active dynamic conductivity in laser-induced transitions is shown not to exceed 38%. Geometric configurations of the resonance tunneling structure, for which the laser radiation intensity increases due to laser-induced two-photon electronic transitions, are determined.