TY  - JOUR
A1  - Afshaarvahid, Shahraam
A1  - Heuer, Axel
A1  - Menzel, Ralf
A1  - Munch, Jesper
T1  - Temporal structure of stimulated-Brillouin-scattering reflectivity considering transversal-mode development
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Elsner, Robert
A1  - Puhlmann, Dirk
A1  - Pieplow, Gregor
A1  - Heuer, Axel
A1  - Menzel, Ralf
T1  - Transverse distinguishability of entangled photons with arbitrarily shaped spatial near- and far-field distributions
JF  - Journal of the Optical Society of America : B, Optical physics
N2  - Entangled photons generated by spontaneous parametric downconversion are ubiquitous in quantum optics. In general, they exhibit a complex spatial photon count distribution. This spatial structure is responsible for seemingly surprising results concerning, e.g., complementarity such as the apparent simultaneous observation of interference fringes V and which-way information D at a double slit, as recently reported by Menzel et al. [Proc. Natl. Acad. Sci. USA 109, 9314 (2012)]. We implement a complete quantitative model of the SPDC interaction that fully incorporates the effects of crystal anisotropies, phase matching, and the pump beam structure and allows for arbitrary manipulations of the SPDC light in the near and far fields. This enables us to establish an upper bound D-2 + V-2 <= 1.47 for the experimental parameters reported by Menzel et al. We report new experimental results that agree excellently with these theoretical predictions. The new model enables a detailed quantitative analysis of this surprising result and the fair sampling interpretation of biphotons passing a double slit. (C) 2015 Optical Society of America
Y1  - 2015
U6  - https://doi.org/10.1364/JOSAB.32.001910
SN  - 0740-3224
SN  - 1520-8540
VL  - 32
IS  - 9
SP  - 1910
EP  - 1919
PB  - Optical Society of America
CY  - Washington
ER  - 
TY  - JOUR
A1  - Elsner, Robert
A1  - Ullmann, Roland
A1  - Heuer, Axel
A1  - Menzel, Ralf
A1  - Ostermeyer, Martin
T1  - Two-dimensional modeling of transient gain gratings in saturable gain
 media
JF  - OPTICS EXPRESS
N2  - A transient two-dimensional model describing degenerate four-wave mixing inside saturable gain media is presented. The new model is compared to existing one-dimensional models with their qualitative results confirmed. Large quantitative differences with respect to peak reflectivity and optimum pump fluence are observed. Furthermore, the influence of the beam focus size, the transverse position and the crossing angle on the reflectivity of the grating is investigated using the improved model. It is demonstrated that the phase conjugate reflectivity depends sensitively on the transverse features of the interacting beams with a transverse shift in the position of the pump beams yielding a threefold improvement in reflectivity. (C) 2012 Optical Society of America
Y1  - 2012
U6  - https://doi.org/10.1364/OE.20.006887
SN  - 1094-4087
VL  - 20
IS  - 7
SP  - 6887
EP  - 6896
PB  - OPTICAL SOC AMER
CY  - WASHINGTON
ER  - 
TY  - THES
A1  - Heuer, Axel
T1  - Phasenkonjugierende Spiegel auf Basis der stimulierten Brillouin-Streuung in optischen Wellenleitern
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Heuer, Axel
A1  - Hodgson, N.
A1  - Lorenz, Dieter
A1  - Ostermeyer, Martin
A1  - Menzel, Ralf
T1  - Solid state lasers with high brightness via optical phase conjugation for micromachining
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Heuer, Axel
A1  - Hodgson, N.
A1  - Menzel, Ralf
T1  - Efficient, low-threshold phase conjugation in a tapered optical fiber
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Heuer, Axel
A1  - Hänisch, Christoph
A1  - Menzel, Ralf
T1  - Low-power phase conjugation based on stimulated Brillouin scattering in fiber amplifiers
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Heuer, Axel
A1  - Hänisch, Christoph
A1  - Menzel, Ralf
T1  - New concept for low threshold optical phase conjugation via SBS in a fiber amplifier
Y1  - 2003
SN  - 0-8194-4772-2
ER  - 
TY  - BOOK
A1  - Heuer, Axel
A1  - Hänisch, Christoph
A1  - Ostermeyer, Martin
A1  - Menzel, Ralf
T1  - Low Power Threshold Phase Conjugating Mirrors by SBS in Yb-doped Fiber Amplifiers
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Heuer, Axel
A1  - Menzel, Ralf
T1  - Principles of Phase Conjugating Brillouin Mirrors
Y1  - 2004
SN  - 0-471-43957-6
ER  -