TuB4.1 - CHIP-SCALE GENERATION OF COHERENT THZ FREQUENCY COMBS AND RADIATION
- J. Yang (US) University of California Los Angeles
- Q. Bai (US) University of California Los Angeles
- S. Huang (US) University of California Los Angeles
- S. Yang (US) University of California Los Angeles
- H. Liu (US) University of California Los Angeles
- X. Jiang (US) University of California Los Angeles
- A. Vinod (US) University of California Los Angeles
- W. Wang (US) University of California Los Angeles
- J. Wu (US) University of California Los Angeles
- M. Jarrahi (US) University of California Los Angeles
- C. Wong (US) University of California Los Angeles
Abstract
Abstract
We report the generation of coherent THz frequency combs in high-Q nonlinear microcavities. Driven by a continuous-wave laser and with Lugiato-Lefever formalism, the efficient THz Turing pattern has exceptional robustness and is observed in two-accompanying differential resonators. Square-spectrum combs are also observed, towards THz radiation.
TuB4.2 - TERAHERTZ COMMUNICATIONS: A PHOTONICS PERSPECTIVE
Abstract
Abstract
The characteristics of wireless networks operating above 95 GHz are quite different from those of conventional wireless systems, due to the much shorter wavelength, which implies a significantly higher directionality and very different propagation behavior. We describe the challenges and opportunities for future networks operating at these frequencies.
TuB4.3 - NON-DESTRUCTIVE TESTING USING TERAHERTZ HOLOGRAPHY AND ELLIPSOMETRY
Tub4.4 - LASER LEVEL SELECTION IN TERAHERTZ QUANTUM CASCADE LASERS
- A. Andrews (AT) Technische Universität Wien, Institute of Solid State Electronics (FKE E362)
- M. Kainz (AT) Technische Universität Wien
- S. Schönhuber (AT) Technische Universität Wien
- B. Limbacher (AT) Technische Universität Wien
- H. Detz (AT) Technische Universität Wien
- M. Beiser (AT) Technische Universität Wien
- M. Giparakis (AT) Technische Universität Wien
- W. Schrenk (AT) Technische Universität Wien
- G. Strasser (AT) Technische Universität Wien
- G. Bastard (AT) Technische Universität Wien
- K. Unterrainer (AT) Technische Universität Wien
Abstract
Abstract
The active region of a terahertz quantum cascade laser with two optical transitions is studied. The population of upper laser states, which correspond to 3.4 and 3.8 THz, are investigated at different operating temperatures and in a strong magnetic field.
TuB4.5 - OBSERVATION OF BROADBAND ELECTRICALLY TUNABLE THZ METAMATERIALS POLARIZATION CONVERSION
Abstract
Abstract
Here, we propose an actively tunable LC based MM device that can achieve linear to elliptical polarization conversion of THz wave in the reflection mode. Based on simulation result, the device is able to modulate the reflected wave polarization.
TuB4.6 - TERAHERTZ TECHNOLOGY FOR DEFENSE AND SECURITY APPLICATIONS
Abstract
Abstract
Terahertz technology has now reached a state of maturity, where it is possible to operate on the system level and design of out-of-the-lab solutions for security and defense applications within the 0.3-3.0 THz spectral range like, e.g., standoff detection of explosives or THz communication.