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https://www.um.edu.mt/library/oar/handle/123456789/108676| Title: | Quantum-confined Stark effect in interdiffused AlGaAs/GaAs quantum well |
| Authors: | Li, E. Herbert Chan, K. S. Weiss, Bernard L. Micallef, Joseph |
| Keywords: | Gallium arsenide Inorganic compounds -- Analysis Stark effect Exciton theory Quantum wells Semiconductors -- Materials |
| Issue Date: | 1993 |
| Publisher: | AIP Publishing |
| Citation: | Li, E. H., Chan, K. S., Weiss, B. L., & Micallef, J. (1993). Quantum‐confined Stark effect in interdiffused AlGaAs/GaAs quantum well. Applied physics letters, 63(4), 533-535. |
| Abstract: | The quantum‐confined Stark effect is analyzed in an interdiffused Al0.3Ga0.7As/GaAs single quantum well (QW) with an as‐grown well width of 100 Å, where the confinement profile is modeled by an error function. Results indicate a twofold enhancement of the Stark shift for the interdiffused quantum well over that of the square quantum well for a 50 kV/cm applied field. The fundamental exciton absorption peak also shows a much larger reduction with increasing applied field in the more extensively interdiffused QW. These characteristics may be used to realize optical modulators with higher on/off ratios and lower drive voltages. |
| URI: | https://www.um.edu.mt/library/oar/handle/123456789/108676 |
| Appears in Collections: | Scholarly Works - FacICTMN |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| The_Quantum_Confined_Stark_effect_in_an_interdiffused_AlGaAs_GaAs_quantum_well.pdf Restricted Access | 382 kB | Adobe PDF | View/Open Request a copy |
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