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We demonstrate the first long-wave, room temperature II-VI materials based Quantum Cascade emitter around 7.2 μm. At 80 K, a device differential resistance of 2.6 Ω and a narrow electroluminescent width of 16% was obtained.
Strongly coupling metallic nanoresonators with specially designed intersubband-transitions in quantum-wells results in efficient, saturation-limited second-harmonic (SH) generation. This method also grants full control over the polarization and phase-front of the emitted SH radiation.
We demonstrate the first II–VI based short-wave (λ ≤ 4 µm) Quantum Cascade Detector. Peak responsivity and background limited detectivity of 0.1 mA/W and 2.5×1010 cm√Hz/W, respectively, were measured at 80 K.
We experimentally demonstrate a short wavelength ZnCdSe/ZnCdMgSe quantum well infrared photodetector (QWIP) with a room temperature responsivity of over 30 A/W. The dark-current limited detectivity at 80 K was measured to be 2×109 cm√Hz/W.
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