References

Semiconductor Physics, Quantum Electronics and Optoelectronics, 3 (2) P. 144-149 (2000).

References

1. L.N. Ovander, Nonlinear optical effects in crystals (in Russian) // Uspekhi Fiz. Nauk 86(1), pp. 1-39 (1965). https://doi.org/10.3367/UFNr.0086.196505a.0003

2. V.M. Griban, L.N. Ovander, Contribution from anharmonism to the two-photon absorption in a Coulomb subsystem (in Russian) // Fiz. Tverd. Tela 12(2), pp. 448-454 (1970).

3. M. Inoue, Y. Toyozawa, Two-photon absorption and energy band structure // J. Phys. Soc. Japan 20(3) pp. 363-374,(1965). https://doi.org/10.1143/JPSJ.20.363

4. A.I. Bobrysheva, S.A. Moskalenko, On the two-photon induced luminescence in intrinsic semiconductors and insulators. Transition from an excitonic state (in Russian) // Izv. ANSSSR, Ser. Phys.30(9), pp. 1539-1541 (1966).

5. V.M. Griban, On sum harmonic generation in crystals with center of inversion (in Russian) // Izv. Vuzov SSSR. Fizika N6, pp.107-110 (1969).

6. E.F. Venger, V.M. Griban, A.V. Melnichuk, Resonance generation of sum harmonic in static electric field // Semiconductor Physics, Quantum Electronics & Optoelectronics 2(3),pp. 98-102 (1999). https://doi.org/10.15407/spqeo2.03.098

7. L.D. Landau, E.M. Lifshits, Quantum Mechanics(in Russian), p.443, Nauka, Moscow (1989).

8. M.I. Petrashen, E.D. Trifonov, Group Theory Applications in Quantum Mechanics(in Russian), Nauka, Moscow (1967).