TY  - JOUR
A1  - Riebe, Daniel
A1  - Beitz, Toralf
A1  - Dosche, Carsten
A1  - Löhmannsröben, Hans-Gerd
A1  - Raab, Volker
A1  - Raab, Corinna
A1  - Unverzagt, Matthias
T1  - High-resolution spectrometer using combined dispersive and interferometric wavelength separation for raman and laser-induced Breakdown Spectroscopy (LIBS)
JF  - Applied spectroscopy : an international journal of spectroscopy ; official publication of the Society for Applied Spectroscopy
N2  - In this paper the concept of a compact high-resolution spectrometer based on the combination of dispersive and interferometric elements is presented. Dispersive elements are used to spectrally resolve the light in one direction with coarse resolution (Delta lambda < 0.5 nm), while perpendicular to that direction an etalon provides high spectral resolution (Delta lambda < 50 pm). This concept for two-dimensional spectroscopy has been implemented for the wavelength range lambda = 350-650 nm. Appropriate algorithms for reconstructing spectra from the two-dimensional raw data and for wavelength calibration were established in an analysis software. Potential applications for this new spectrometer are Raman and laser-induced breakdown spectroscopy (LIBS). Resolutions down to 28 pm (routinely 54 pm) could be realized for these applications.
KW  - Raman spectroscopy
KW  - Laser-induced breakdown spectroscopy
KW  - LIBS
KW  - Fabry-Perot etalon
KW  - High-resolution spectrometer
Y1  - 2014
U6  - https://doi.org/10.1366/13-07426
SN  - 0003-7028
SN  - 1943-3530
VL  - 68
IS  - 9
SP  - 1030
EP  - 1038
PB  - Society for Applied Spectroscopy
CY  - Frederick
ER  - 
TY  - JOUR
A1  - Jechow, Andreas
A1  - Raab, Volker
A1  - Menzel, Ralf
T1  - High cw power using an external cavity for spectral beam combining of diode laser-bar emission
N2  - In extension to known concepts of wavelength-multiplexing diode laser arrays, a new external cavity is presented. The setup simultaneously improves the beam quality of each single emitter of a standard 25 emitter broad-area stripe laser bar and spectrally superimposes the 25 beams into one. By using this external resonator in an "off-axis" arrangement, beam qualities of M-slow(2) < 14 and M-fast(2) < 3 with optical powers in excess of 10 W in cw operation are obtained.
Y1  - 2006
UR  - http://www.opticsinfobase.org/ao/browse.cfm
U6  - https://doi.org/10.1364/AO.45.003545
SN  - 0003-6935
ER  - 
TY  - JOUR
A1  - Raab, Volker
A1  - Skoczowsky, Danilo
A1  - Menzel, Ralf
T1  - Tuning high-power diodes with as much as 0.38 W of power and M2 = 1.2 over a range of 32 nm with 3-GHz bandwidth
Y1  - 2003
ER  - 
TY  - THES
A1  - Raab, Volker
T1  - Geregeltes Schalten bistabiler Systeme
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Raab, Volker
A1  - Postnov, D.
T1  - Induced hysteresis-free transitions in a bistable system (experimental verification)
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Raab, Volker
A1  - Menzel, Ralf
T1  - External resonator design for high-power laser diodes that yields 400 mW of TEM00 power
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Raab, Volker
A1  - Menzel, Ralf
T1  - Phase-locked array of 25 broad-area lasers
Y1  - 2002
SN  - 0-8194-4368-9
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  - Raab, Volker
A1  - Ullner, Ekkehard
A1  - Menzel, Ralf
T1  - Novel External Resonators for High Power Diode Lasers with Improved Beam Quality
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Heuer, Axel
A1  - Schultheiss, J.
A1  - Hodgson, N.
A1  - Kurths, Jürgen
A1  - Menzel, Ralf
A1  - Raab, Volker
T1  - Transverse effects in phase conjugate laser mirrors based on stimulated brillouin scattering
Y1  - 1999
ER  -