Comparative study of electroabsorption in InGaNGaN quantum zigzag heterostructures with polarization-induced electric fields

Emre Sari, Tuncay Ozel, Asli Koc, Jin Woo Ju, Haeng Keun Ahn, In-Hwan Lee, Jong Hyeob Baek, Hilmi Volkan Demir

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a comparative study on InGaNGaN quantum zigzag structures embedded in p-i-n diode architecture that exhibit blue-shifting electroabsorption in the blue when an electric field is externally applied to compensate for the polarization-induced electric field across the wells. With the polarization breaking their symmetry, the same InGaNGaN quantum structures redshift their absorption edge when the external field is applied in the same direction as the well polarization. Both computationally and experimentally, we investigate the effects of polarization on electroabsorption by varying compositional content and structural parameters and demonstrate that electroabsorption grows stronger with weaker polarization in these multiple quantum well modulators.

Original languageEnglish
Article number201105
JournalApplied Physics Letters
Volume92
Issue number20
DOIs
Publication statusPublished - 2008 May 30
Externally publishedYes

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electric fields
polarization
p-i-n diodes
modulators
broken symmetry
quantum wells

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Comparative study of electroabsorption in InGaNGaN quantum zigzag heterostructures with polarization-induced electric fields. / Sari, Emre; Ozel, Tuncay; Koc, Asli; Ju, Jin Woo; Ahn, Haeng Keun; Lee, In-Hwan; Baek, Jong Hyeob; Demir, Hilmi Volkan.

In: Applied Physics Letters, Vol. 92, No. 20, 201105, 30.05.2008.

Research output: Contribution to journalArticle

Sari, Emre ; Ozel, Tuncay ; Koc, Asli ; Ju, Jin Woo ; Ahn, Haeng Keun ; Lee, In-Hwan ; Baek, Jong Hyeob ; Demir, Hilmi Volkan. / Comparative study of electroabsorption in InGaNGaN quantum zigzag heterostructures with polarization-induced electric fields. In: Applied Physics Letters. 2008 ; Vol. 92, No. 20.
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