Parametric up- and down-conversion
Spontaneous Parametric Down-Conversion in a Beta Barium Borate Crystal
... the down-conversion ...the down-conversion is much lower, and is called spontaneous parametric down-conversion and can only be achieved by prop- erly tuning your ...
14
Towards spontaneous parametric down conversion from monolayer MoS2
... We present a detailed study of the second order nonlinearity of 2D (mono-atomic layer) dichalcogenide MoS 2 , both in the visible and in the IR regime, and test its potential for spontaneous parametric ...
7
Triply-Resonant Cavity-Enhanced Spontaneous Parametric Down-Conversion
... L 1 / 2 , the focus can be positioned at the flat mirror of the filter cavity. The beam waist can be matched to the fundamental mode of the cavity by adjusting the position of the lenses inside the fiber collimators. ...
276
Type-I spontaneous parametric down-conversion with a strongly focused pump
... OF PARAMETRIC DOWN-CONVERSION The standard quantum model of spontaneous parametric down-conversion consists of writing the Hamiltonian of the interaction of the pump with the ...
8
Creating spatially entangled 4-photon states by parametric down conversion
... 2 Introduction emission direction of the photons. In quantum mechanics a spontaneous process is always accompanied by a stimulated process. The strength of this stimulated process depends on the number of particles ...
64
Bounds and optimisation of orbital angular momentum bandwidths within parametric down-conversion systems
... Published online 10 July 2012 – c EDP Sciences, Societ` a Italiana di Fisica, Springer-Verlag 2012 Abstract. The measurement of high-dimensional entangled states of orbital angular momentum prepared by spontaneous ...
7
Bloch-Messiah decomposition and Magnus expansion for parametric down-conversion with monochromatic pump: role of the gain
... 1 Univ. Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers Atomes et Molécules, F-59000 Lille, France 2 B. I. Stepanov Institute of Physics, NASB, Nezavisimosti Ave. 68, Minsk 220072 Belarus Abstract. We consider the ...
7
The possibility for surface-enhanced Raman scattering and spontaneous parametric down-conversion by globular photonic crystals infiltrated with dielectrics
... observed within a wide spectral region under excitation with the light wavelength λ = 400 nm. The first part of the emission spectrum located in the vicinity of the excitation line depends on infiltrated substance and is ...
5
Intermodal parametric frequency conversion in optical fibers
... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Outer diameter OPA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
292
Parametric Conversion Using Custom MOS Varactors
... the parametric conversion concept is revisited and discussed in terms of modern RF communications ...and parametric circuit evaluation based on measured device ...
16
Phase Matching and Parametric Conversion for the Mid Infrared in As2S3 Waveguides
... efficiencies up to 100% can be achieved using dispersion engineering to maintain the dispersion at ...best conversion efficiency is –10 ...the parametric conversion bandwidth is 1525 ...
5
Statistical Parametric Methods for Articulatory-Based Foreign Accent Conversion
... statistical parametric techniques to generate speech with native accent but the voice of a non-native ...statistical parametric articulatory synthesizer build for a non-native ...statistical ...
194
A Parametric Approach for Efficient Speech Storage, Flexible Synthesis and Voice Conversion
... segmental parametric speech codec referred to as the VLBR codec, presented techniques for enhancing its compression efficiency, and extended the codec into a framework suitable for memory-efficient concate- native ...
164
Ultra-low power parametric frequency conversion in a silicon microring resonator
... wavelength conversion at ultra-low pump powers in micrometer-size photonic ...wavelength conversion, signal regeneration, and switching. Conversion efficiencies close to 0 dB should be achievable by ...
7
Spontaneous Parametric Down-Conversion and Quantum Entanglement
... 2.1 Polarization Entanglement for Type-I and Type-II SPDC Now that a theory has been developed for the creation of polarization-correlated photons using a single frequency laser the pump[r] ...
27
Broad-band continuous-wave parametric wavelength conversion in silicon nanowaveguides
... predicted conversion efficiency for a 100-mW pump and 1-cm interaction length is shown in ...wavelength conversion over a 200-nm range with efficiencies of approximately -10 ...the conversion ...
10
Frequency selection by soliton excitation in nondegenerate intracavity down-conversion
... For fixed cavity parameters solitons can exist either for ∆ continuously varying in a certain range or for only a discrete set of ∆ values. We will show that the latter situ- ation is realised for γ s,i 6 = 0. We thus ...
5
RF Mixers. A down-conversion system. An up-conversion system
... A passive Double Balanced Mixer can be used beyond its frequency specification, because being a broadband aperiodic circuit the slope of degradation is slow. In the circuit examples shown below the frequency range is ...
25
Up and Down Frequency-Conversion Properties of Eu3+ Doped Lead Fluorophosphate Nanoglass Ceramics
... b Department of Chemistry, Imam Hossein University, Tehran, Iran. Abstract – Europium doped transparent lead fluorophosphate glass ceramics successfully were prepared with heat treatment of precourse glasses at ...
8
Up and Down the River
... This project, funded by a grant from the Iowa Native Plant Society and support from Friends of Jackson County Conservation, focused on engaging high school and college students with [r] ...
8