TY  - JOUR
AU  - Escoto, Esmerando
AU  - Pressacco, Federico
AU  - Jiang, Yujiao
AU  - Rajhans, Supriya
AU  - Khodakovskiy, Nikita
AU  - Hartl, Ingmar
AU  - Seidel, Marcus
AU  - Heyl, Christoph
AU  - Tuennermann, Henrik
TI  - Improved temporal characteristics for post-compressed pulses via application-tailored nonlinear polarization ellipse rotation
JO  - Optics letters
VL  - 49
IS  - 23
SN  - 0146-9592
CY  - Washington, DC
PB  - Optica Publishing Group
M1  - PUBDB-2024-05520
SP  - 6841
PY  - 2024
AB  - Intense ultrashort laser pulses with high temporal quality are essential for fundamental science. Nonlinear polarization ellipse rotation (NER) is one way to ensure this high temporal quality, by suppressing weaker signals beyond the duration of the main pulse up to a few orders of magnitude.Post-compression schemes have revolutionized ultrafast lasers, enabling the generation of pulses with durations beyond the limit supported by laser gain media.However, high compression ratios lead to the formation of new pre- and post-pulses. Both NER and post-compression depend on the optical Kerr effect. This makes the combination of the two in a single setup both advantageous and straightforward.While NER cannot suppress the new pre- and post-pulses generated in post-compression, we show via simulations and experimental data that by combining the two, it is possible to shape the output spectrum and counteract temporal contrast degradation.
LB  - PUB:(DE-HGF)16
C6  - 39602764
UR  - <Go to ISI:>//WOS:001379161600006
DO  - DOI:10.1364/OL.539646
UR  - https://bib-pubdb1.desy.de/record/613031
ER  -