Third-harmonic generation in a quantum well with adjustable asymmetry under an electric field

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Atıf İçin Kopyala

Yildirim H., Tomak M.

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, cilt.243, sa.15, ss.4057-4063, 2006 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 243 Sayı: 15
• Basım Tarihi: 2006
• Doi Numarası: 10.1002/pssb.200642079
• Dergi Adı: PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.4057-4063
• Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We study third-harmonic generation in a quantum well represented by a Poschl-Teller confining potential under an applied electric field. This potential is well suited for such purposes as it can easily become asymmetrical by a correct choice of its parameter set. We calculate the third harmonic generation within the density matrix formalism. Numerical results for a typical GaAs quantum well are presented. We investigate the third-harmonic generation for several values of asymmetry parameters under small electric fields. It is found to be enhanced with the increasing electric field. While the resulting third-harmonic generation peak is promising it is still quite smaller than that observed in similar quantum well systems. (C) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.