P
P. Sperber
Researcher at University of Regensburg
Publications - 6
Citations - 194
P. Sperber is an academic researcher from University of Regensburg. The author has contributed to research in topics: Ruby laser & Picosecond. The author has an hindex of 6, co-authored 6 publications receiving 186 citations.
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Experimental and theoretical investigation of tunable picosecond pulse generation in longitudinally pumped dye laser generators and amplifiers
TL;DR: In this paper, a picosecond ruby laser pump source was used to generate spontaneous emission and seeding pulses in a longitudinally pumped dye laser generator and amplifiers, and the coherence properties of the generated radiation were analyzed.
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S0-Sn two-photon absorption dynamics of rhodamine dyes
P. Sperber,Alfons Penzkofer +1 more
TL;DR: In this article, the intensity-dependent transmission of picosecond ruby laser pulses of different duration through methanolic and ethanolic solutions of rhodamine B and Rhodamine 6G was analyzed.
Journal ArticleDOI
Measurement of absorption cross sections in the long-wavelength region of the S0S1 absorption band of dyes
Alfons Penzkofer,P. Sperber +1 more
TL;DR: In this article, the absorption cross sections σ A (ν L ) (νL is the ruby-laser frequency) of 1,1′-diethyl-2,4′-carbocyanine iodide in methanol and oxazine 1 perchlorate in ethanol were determined from nonlinear transmission measurements with picosecond light pulses.
Journal ArticleDOI
Pulse-shape determination of intracavity compressed picosecond pulses by two-photon fluorescence analysis.
P. Sperber,Alfons Penzkofer +1 more
TL;DR: In this paper, two-photon fluorescence traces are decorrelated to determine the approximate temporal shape of the modulated pulses, which can be used to estimate the temporal structure of the pulses.
Journal ArticleDOI
Pulse Compression in a Passively Mode-Locked Ruby Laser
P. Sperber,Alfons Penzkofer +1 more
TL;DR: In this paper, a passively mode-locked ruby laser oscillator with two saturable absorber cells was described, which, towards the end of the pulse train, generates picosecond pulses of about 3 ps FWHM upon weak pedestals approximately 40 ps wide.