Optically detected microwave resonance at 95 GHz of exciton states in InAs/GaAs quantum dots

N. Zurauskiene, G. Janssen, E. Goovaerts, A. Bouwen, D. Schoemaker, P.M. Koenraad, J.H. Wolter

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

Optically detected microwave resonance spectra of MBE-grown InAs/GaAs quantum dots (QD) was obsd. The signal is detected via modulation of the total intensity of the QD emission induced by W-band (95 GHz) microwave excitation. ODMR lines are obsd. at higher fields when the static field is either parallel or perpendicular to the growth direction, with hole g-values |gh,.dblvert.| = 3.9 and |gh,.perp.| = 3.0, resp. These broad ODMR lines are tentatively attributed to hole spin transitions. A strongly anisotropic low-field transition is ascribed to cyclotron resonance (CR), corresponding to an effective mass of 0.059 m0.
Original languageEnglish
Pages (from-to)551-554
JournalPhysica Status Solidi B
Volume224
Issue number2
DOIs
Publication statusPublished - 2001

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