TY  - JOUR
A1  - Eichler, Hans Joachim
A1  - Haase, Alfred
A1  - Menzel, Ralf
A1  - Schwartz, J.
T1  - Depolarization treatment and optimization of high power double pass neodym-rod amplifiers with SBS mirror
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Klemz, Guido
A1  - Kubina, P.
A1  - Ostermeyer, Martin
A1  - Menzel, Ralf
T1  - Diode pumped high power TEM_00 Nd:YAG rod laser with birefringence compensation
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Ostermeyer, Martin
A1  - Kappe, Philip
A1  - Menzel, Ralf
A1  - Wulfmeyer, Volker
T1  - Diode-pumped Nd : YAG master oscillator power amplifier with high pulse energy, excellent beam quality, and frequency-stabilized master oscillator as a basis for a next-generation lidar system
N2  - In the original publication [Ostermeyer et al., Appl. Opt., 44, 582-590 (2005)], Fig. 5 appeared twice as Figs. 4 and 5. This inaccuracy is corrected here. (c) 2005 Optical Society of America
Y1  - 2005
SN  - 0003-6935
ER  - 
TY  - BOOK
A1  - Ostermeyer, Martin
A1  - Kappe, Philip
A1  - Menzel, Ralf
A1  - Wulfmeyer, Volker
T1  - Diode-pumped Nd : YAG master oscillator power amplifier with high pulse energy, excellent beam quality, and frequency-stabilized master oscillator as a basis for a next-generation lidar system
N2  - A pulsed, diode-laser-pumped Nd:YAG master oscillator power amplifier (MOPA) in rod geometry, frequency stabilized with a modified Pound-Drever-Hall scheme is presented. The apparatus delivers 33-ns pulses with a maximum pulse energy of 0.5 J at 1064 nm. The system was set up in two different configurations for repetition rates of 100 or 250 Hz. The beam quality was measured to be 1.5 times the diffraction limit at a pulse energy of 405 mJ and a repetition rate of 100 Hz. At 250 Hz with the same pulse energy, the M-2 was better than 2.1. The radiation is frequency converted with an efficiency of 50% to 532 nm. This MOPA system will be the pump laser of transmitters for a variety of high-end, scanning lidar systems. (C) 2005 Optical Society of America
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Ostermeyer, Martin
A1  - Klemz, Guido
A1  - Menzel, Ralf
T1  - Double rod Nd:YAG laser with 180 W average output and diffraction limited beam quality via path-matched birefringence compensation
Y1  - 2002
SN  - 0-8194-4368-9
ER  - 
TY  - JOUR
A1  - Rätzel, Dennis
A1  - Wilkens, Martin
A1  - Menzel, Ralf
T1  - Effect of polarization entanglement in photon-photon scattering
JF  - Physical review : A, Atomic, molecular, and optical physics
N2  - It is found that the differential cross section of photon-photon scattering is a function of the degree of polarization entanglement of the two-photon state. A reduced general expression for the differential cross section of photon-photon scattering is derived by applying simple symmetry arguments. An explicit expression is obtained for the example of photon-photon scattering due to virtual electron-positron pairs in quantum electrodynamics. It is shown how the effect in this explicit example can be explained as an effect of quantum interference and that it fits with the idea of distance-dependent forces.
Y1  - 2017
U6  - https://doi.org/10.1103/PhysRevA.95.012101
SN  - 2469-9926
SN  - 2469-9934
VL  - 95
IS  - 1
PB  - American Physical Society
CY  - College Park
ER  - 
TY  - JOUR
A1  - Menzel, Ralf
A1  - Raab, Volker
A1  - Lorenz, Dieter
A1  - Heuer, Axel
T1  - Efficient phase conjugating mirror with a low threshold in a tapered optical fiber
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Skoczowsky, Danilo
A1  - Jechow, Andreas
A1  - Menzel, Ralf
A1  - Paschke, Katrin
A1  - Erbert, Götz
T1  - Efficient second-harmonic generation using a semiconductor tapered amplifier in a coupled ring-resonator geometry
N2  - A new approach for efficient second-harmonic generation using diode lasers is presented. The experimental setup is based on a tapered amplifier operated in a ring resonator that is coupled to a miniaturized enhancement ring resonator containing a periodically poled lithium niobate crystal. Frequency locking of the diode laser emission to the resonance frequency of the enhancement cavity is realized purely optically, resulting in stable, single-frequency operation. Blue light at 488 nm with an output power of 310 mW is generated with an optical-to-optical conversion efficiency of 18%.
Y1  - 2010
UR  - http://www.opticsinfobase.org/
U6  - https://doi.org/10.1364/OL.35.000232
SN  - 0146-9592
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  - Tedeschi, Concetta
A1  - Li, L.
A1  - Möhwald, Helmuth
A1  - Spitz, Christian
A1  - von Seggern, David
A1  - Menzel, Ralf
A1  - Kirstein, Stefan
T1  - Engineering of layer-by-layer coated capsules with the prospect of materials for efficient and directed electron transfer
N2  - We show a Lefschetz fixed point formula for holomorphic functions in a bounded domain D with smooth boundary in the complex plane. To introduce the Lefschetz number for a holomorphic map of D, we make use of the Bergman kernel of this domain. The Lefschetz number is proved to be the sum of the usual contributions of fixed points of the map in D and contributions of boundary fixed points, these latter being different for attracting and repulsing fixed points
Y1  - 2004
ER  -