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Conferences > CLEO > 2006 > CTuT > CTuT4
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2006),
  • paper CTuT4

Long Wavelength Terahertz Quantum-Cascade Lasers With One-Well Injector

Sushil Kumar, Benjamin S. Williams, Qing Hu, and John L. Reno

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Abstract

We report operation of terahertz quantum-cascade lasers at frequencies down to 1.86 THz (λ≈161 μm) using a single quantum-well injector that significantly reduces free-carrier losses. The laser threshold current density at 5 K was ~140 A/cm2.

© 2006 Optical Society of America

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