Microcavity enhanced Stark optical modulator for long-wave infrared

被引：0
|
作者：
Suchalkin, Sergey [1 ]
Laykhtman, Boris [2 ]
Belenky, G. [1 ]
Svensson, Stefan P. [3 ]
Kipshidze, Gela [1 ]
Alzamora, Jhair [1 ]
机构：
[1] SUNY Stony Brook, Stony Brook, NY 11794 USA
[2] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[3] CCDC US Army Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA
来源：
SOLID STATE COMMUNICATIONS | 2022年 / 358卷
关键词：
QUANTUM; SHIFTS;
D O I：
10.1016/j.ssc.2022.115010
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A voltage-tunable microcavity modulator is designed, fabricated and characterized. The device active area comprises a stack of type II metamorphic quantum wells (QW) sandwiched between doped contact layers that also serve as optical mirrors. The device operates in the spectral region of 8-16 mu m. The optical transmission of the cavity can be modulated in a range of similar to 2% at a wavelength of 9.5 mu m by application of a bias voltage with an amplitude of 4 V. The sign of the transmission change depends on the voltage polarity as expected from the first order Stark effect in the polar type-II QWs. This results in a two times higher transmission modulation amplitude at a given voltage compared with type I quantum wells and bulk materials.
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页数：5
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