Results 11 to 20 of about 244,255 (319)
Broadband THz quantum cascade laser frequency combs with surface emission and inverse-designed facet reflectors [PDF]
EPJ Web of Conferences, 2023 We present a planarized waveguide cavity with an integrated broadband output coupler that improves both the output power and far-field properties of THz quantum cascade laser frequency combs. The laser mirror reflectivity can be tuned by the shape of the
Senica Urban +5 more
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Surface-emitting THz quantum cascade laser frequency comb with tunable external mirror dispersion compensation [PDF]
EPJ Web of Conferences, 2023 We present a surface emitting THz quantum cascade laser frequency comb with an adjustable chromatic dispersion compensation via a mechanically tunable GTI cavity.
Digiorgio Valerio +5 more
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Field-enhancing tapered planarized waveguides for THz quantum cascade laser frequency combs [PDF]
EPJ Web of Conferences, 2022 We present a new planarized waveguide geometry for THz quantum cascade laser frequency combs with improved waveguide losses, RF and thermal dissipation properties.
Senica Urban +8 more
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Coherent walk and lock in driven fast-gain frequency-combs [PDF]
EPJ Web of Conferences, 2023 Locking multiple modes into a frequency comb is key for multiple metrological applications, and a great effort has been therefore invested in this challenge over the last decade. The most common techniques are based on either nonlinearities or modulation
Heckelmann Ina +5 more
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Quantum Dissipation and Quantum Groups [PDF]
Annals of Physics, 1995 to appear in Annals of Physics (N.Y.)
Iorio, Alfredo, Vitiello, Giuseppe
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Nanoimprinting for all-polymer electro-optic waveguide devices [PDF]
EPJ Web of Conferences, 2023 We performed the design and fabrication of polymer waveguide circuits, aiming for applications as electro-optic devices. Uniform waveguides with over one centimeter of length were fabricated by soft nanoimprint lithography.
Henrique Franciele +9 more
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Heliyon, 2021 We have experimentally created a robust, ultrabright and phase-stable polarization-entangled state close to maximally entangled Bell-state with %98-fidelity using the type-II spontaneous parametric down-conversion (SPDC) process in periodically-poled ...
Ali Motazedifard +3 more
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Quantum groups and quantum cohomology [PDF]
Astérisque, 2019 In this paper, we study the classical and quantum equivariant cohomology of Nakajima quiver varieties for a general quiver Q. Using a geometric R-matrix formalism, we construct a Hopf algebra Y_Q, the Yangian of Q, acting on the cohomology of these varieties, and show several results about their basic structure theory.
Maulik, D, Okounkov, A
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Anyons and quantum groups [PDF]
Nuclear Physics B, 1993 Anyonic oscillators with fractional statistics are built on a two-dimensional square lattice by means of a generalized Jordan-Wigner construction, and their deformed commutation relations are thoroughly discussed. Such anyonic oscillators, which are non-local objects that must not be confused with $q$-oscillators, are then combined à la Schwinger to ...
LERDA, Alberto, S. SCIUTO
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Planarized THz quantum cascade lasers for broadband coherent photonics
Light: Science & Applications, 2022 Recently, there has been a growing interest in integrated THz photonics for various applications in communications, spectroscopy and sensing. We present a new integrated photonic platform based on active and passive elements integrated in a double-metal,
Urban Senica +8 more
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