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F X Kartner

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Articles 64
Citations 602
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Recent Articles
1.
Matlis N, Olgun H, Rentschler C, Ravi K, Taira T, Ishizuki H, et al.
Opt Express . 2024 Nov; 32(19):33875-33893. PMID: 39573077
Millijoule-scale pulses of multicycle terahertz radiation (MC-THz) are increasingly being pursued as drivers for applications requiring high-fields and high spectral brightness. An attractive approach for generating high peak-power MC-THz pulses...
2.
Matlis N, Zhang Z, Demirbas U, Rentschler C, Ravi K, Youssef M, et al.
Opt Express . 2024 Jan; 31(26):44424-44443. PMID: 38178514
The low (sub %) efficiencies so-far demonstrated for nonlinear optical down-conversion to terahertz (THz) frequencies are a primary limiting factor in the generation of high-energy, high-field THz-radiation pulses (in particular...
3.
Zapata L, Pergament M, Schust M, Reuter S, Thesinga J, Zapata C, et al.
Opt Lett . 2022 Dec; 47(24):6385-6388. PMID: 36538444
We present results on the development of a cryogenic Yb:YAG multi-pass laser amplifier based on a composite thin-disk design and demonstrate one-joule, diffraction limited, chirped 234-ps pulses with 50% optical-to-optical...
4.
Olgun H, Tian W, Cirmi G, Ravi K, Rentschler C, Cankaya H, et al.
Opt Lett . 2022 May; 47(10):2374-2377. PMID: 35561354
We demonstrate record ∼0.9% efficiencies for optical conversion to narrowband (<1% relative bandwidth) terahertz (THz) radiation by strongly cascaded difference frequency generation. These results are achieved using a novel, to...
5.
Keathley P, Putnam W, Vasireddy P, Hobbs R, Yang Y, Berggren K, et al.
Nat Phys . 2019 Nov; 15(11):1128-1133. PMID: 31700524
No abstract available.
6.
Schimpf D, Olgun H, Kalaydzhyan A, Hua Y, Matlis N, Kartner F
Opt Express . 2019 May; 27(8):11037-11056. PMID: 31052955
We generate temporally modulated optical pulses with a beat frequency of 255 GHz, a duration of 360 ps, and a repetition rate of 2 MHz. The temporal envelope, beat frequency,...
7.
Klemke N, Tancogne-Dejean N, Rossi G, Yang Y, Scheiba F, Mainz R, et al.
Nat Commun . 2019 Mar; 10(1):1319. PMID: 30899026
Attosecond metrology sensitive to sub-optical-cycle electronic and structural dynamics is opening up new avenues for ultrafast spectroscopy of condensed matter. Using intense lightwaves to precisely control the fast carrier dynamics...
8.
Hemmer M, Cirmi G, Ravi K, Reichert F, Ahr F, Zapata L, et al.
Opt Express . 2018 May; 26(10):12536-12546. PMID: 29801292
We investigate a regime of parametric amplification in which the pump and signal waves are spectrally separated by only a few hundreds of GHz frequency - therefore resulting in a...
9.
Hua Y, Chang G, Kartner F, Schimpf D
Opt Express . 2018 Mar; 26(5):6427-6438. PMID: 29529835
We demonstrate a pre-chirp managed amplification (PCMA) system that is based on two stages of core-pumped, polarization maintaining (PM) fiber amplifiers. It produces output pulses with <65 fs duration and...
10.
Kartner F, Ahr F, Calendron A, Cankaya H, Carbajo S, Chang G, et al.
Nucl Instrum Methods Phys Res A . 2017 Jul; 829:24-29. PMID: 28706325
X-ray crystallography is one of the main methods to determine atomic-resolution 3D images of the whole spectrum of molecules ranging from small inorganic clusters to large protein complexes consisting of...