Nefedov IS, Gusyatnikov VN, Marciniak M, Kononenko VK, Ushakov DV. Optical gain in one-dimensional photonic band gap structures with n-i-p-i crystal layers. JTIT [Internet]. 2002 Mar. 30 [cited 2026 Apr. 20];7(1):60-4. Available from: https://jtit.pl/jtit/article/view/107