The Experts below are selected from a list of 58725 Experts worldwide ranked by ideXlab platform
Andreas Tünnermann - One of the best experts on this subject based on the ideXlab platform.
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Exploring new avenues in high Repetition Rate table-top coherent extreme ultraviolet sources
Light: Science & Applications, 2015Co-Authors: Steffen Hädrich, Manuel Krebs, Armin Hoffmann, Arno Klenke, Jan Rothhardt, Jens Limpert, Andreas TünnermannAbstract:A photonic-crystal fibre filled with krypton gas has been used to realize an extreme-ultraviolet source with a megahertz Repetition Rate. Applications such as photoelectron spectroscopy and coherent diffractive imaging ideally require extreme-ultraviolet sources with a high photon flux and a high Repetition Rate, but achieving both properties simultaneously is challenging. Now, scientists in Jena, Germany, have solved this problem by using a krypton-filled kagome fibre to nonlinearly compress laser pulses at a Rate of 10.7 megahertz. They then used the rapid stream of compressed pulses to drive high-harmonic generation in a gas jet. This resulted in the generation of over 50 microwatts at a photon energy of 27.7 electron volts. The approach could lead to a new breed of more compact and efficient high-harmonic-generation sources.
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generation of µw level plateau harmonics at high Repetition Rate
Optics Express, 2011Co-Authors: Steffen Hädrich, Manuel Krebs, Jan Rothhardt, Jens Limpert, Henning Carstens, Stefan Demmler, Andreas TünnermannAbstract:The process of high harmonic generation allows for coherent transfer of infrared laser light to the extreme ultraviolet spectral range opening a variety of applications. The low conversion efficiency of this process calls for optimization or higher Repetition Rate intense ultrashort pulse lasers. Here we present state-of-the-art fiber laser systems for the generation of high harmonics up to 1 MHz Repetition Rate. We perform measurements of the average power with a calibRated spectrometer and achieved µW harmonics between 45 nm and 61 nm (H23-H17) at a Repetition Rate of 50 kHz. Additionally, we show the potential for few-cycle pulses at high average power and Repetition Rate that may enable water-window harmonics at unprecedented Repetition Rate.
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2 mhz Repetition Rate 200 ps pulse duration from a monolithic passively q switched microchip laser
Applied Physics B, 2009Co-Authors: Alexander Steinmetz, Jens Limpert, D Nodop, Rico Hohmuth, W Richter, Andreas TünnermannAbstract:We present a monolithic passively Q-switched microchip laser generating 200 ps pulses at a wavelength of 1064 nm with a Repetition Rate of up to 2 MHz. While maintaining transversal and longitudinal single-mode operation, the pulse energy can be changed from 130 nJ to 400 nJ by varying the pump conditions of the laser. To the best of our knowledge, the Repetition Rate of 2 MHz is by far the highest ever reported from such lasers operating in the sub-ns regime.
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high Repetition Rate fiber amplifier pumped sub 20 fs optical parametric amplifier
Optics Express, 2007Co-Authors: Jan Rothhardt, Steffen Hädrich, Jens Limpert, Damian N Schimpf, Andreas TünnermannAbstract:We report on a high Repetition Rate noncollinear optical parametric amplifier system (NOPA) based on a cavity dumped Ti:Sapphire oscillator providing the signal, and an Ytterbium-doped fiber amplifier pumping the device. Temporally synchronized NOPA pump pulses are created via soliton generation in a highly nonlinear photonic crystal fiber. This soliton is fiber amplified to high pulse-energies at high Repetition Rates. The broadband Ti:Sapphire laser pulses are parametrically amplified either directly or after additional spectral broadening. The approach of fiber-based pump-pulse generation from a femtosecond laser, that emits in the spectral region of NOPA–gain, offers enhanced long-term stability and pulse quality compared to conventional techniques, such as signal pulse generation from a high power laser system via filamentation in bulk media. The presented system produces high-energy ultra-short pulses with pulse-durations down to 15.6 fs and pulse-energies up to 500 nJ at a Repetition Rate as high as 2 MHz.
Steffen Hädrich - One of the best experts on this subject based on the ideXlab platform.
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Exploring new avenues in high Repetition Rate table-top coherent extreme ultraviolet sources
Light: Science & Applications, 2015Co-Authors: Steffen Hädrich, Manuel Krebs, Armin Hoffmann, Arno Klenke, Jan Rothhardt, Jens Limpert, Andreas TünnermannAbstract:A photonic-crystal fibre filled with krypton gas has been used to realize an extreme-ultraviolet source with a megahertz Repetition Rate. Applications such as photoelectron spectroscopy and coherent diffractive imaging ideally require extreme-ultraviolet sources with a high photon flux and a high Repetition Rate, but achieving both properties simultaneously is challenging. Now, scientists in Jena, Germany, have solved this problem by using a krypton-filled kagome fibre to nonlinearly compress laser pulses at a Rate of 10.7 megahertz. They then used the rapid stream of compressed pulses to drive high-harmonic generation in a gas jet. This resulted in the generation of over 50 microwatts at a photon energy of 27.7 electron volts. The approach could lead to a new breed of more compact and efficient high-harmonic-generation sources.
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generation of µw level plateau harmonics at high Repetition Rate
Optics Express, 2011Co-Authors: Steffen Hädrich, Manuel Krebs, Jan Rothhardt, Jens Limpert, Henning Carstens, Stefan Demmler, Andreas TünnermannAbstract:The process of high harmonic generation allows for coherent transfer of infrared laser light to the extreme ultraviolet spectral range opening a variety of applications. The low conversion efficiency of this process calls for optimization or higher Repetition Rate intense ultrashort pulse lasers. Here we present state-of-the-art fiber laser systems for the generation of high harmonics up to 1 MHz Repetition Rate. We perform measurements of the average power with a calibRated spectrometer and achieved µW harmonics between 45 nm and 61 nm (H23-H17) at a Repetition Rate of 50 kHz. Additionally, we show the potential for few-cycle pulses at high average power and Repetition Rate that may enable water-window harmonics at unprecedented Repetition Rate.
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high Repetition Rate fiber amplifier pumped sub 20 fs optical parametric amplifier
Optics Express, 2007Co-Authors: Jan Rothhardt, Steffen Hädrich, Jens Limpert, Damian N Schimpf, Andreas TünnermannAbstract:We report on a high Repetition Rate noncollinear optical parametric amplifier system (NOPA) based on a cavity dumped Ti:Sapphire oscillator providing the signal, and an Ytterbium-doped fiber amplifier pumping the device. Temporally synchronized NOPA pump pulses are created via soliton generation in a highly nonlinear photonic crystal fiber. This soliton is fiber amplified to high pulse-energies at high Repetition Rates. The broadband Ti:Sapphire laser pulses are parametrically amplified either directly or after additional spectral broadening. The approach of fiber-based pump-pulse generation from a femtosecond laser, that emits in the spectral region of NOPA–gain, offers enhanced long-term stability and pulse quality compared to conventional techniques, such as signal pulse generation from a high power laser system via filamentation in bulk media. The presented system produces high-energy ultra-short pulses with pulse-durations down to 15.6 fs and pulse-energies up to 500 nJ at a Repetition Rate as high as 2 MHz.
D Kielpinski - One of the best experts on this subject based on the ideXlab platform.
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ultrafast high Repetition Rate ultraviolet fiber laser based source application towards yb fast quantum logic
Optics Express, 2016Co-Authors: Mahmood Irtiza Hussain, M J Petrasiunas, Christopher D B Bentley, Richard L Taylor, Andre R R Carvalho, Joseph Hope, Erik Streed, Mirko Lobino, D KielpinskiAbstract:Trapped ions are one of the most promising approaches for the realization of a universal quantum computer. Faster quantum logic gates could dramatically improve the performance of trapped-ion quantum computers, and require the development of suitable high Repetition Rate pulsed lasers. Here we report on a robust frequency upconverted fiber laser based source, able to deliver 2.5 ps ultraviolet (UV) pulses at a stabilized Repetition Rate of 300.00000 MHz with an average power of 190 mW. The laser wavelength is resonant with the strong transition in Ytterbium (Yb+) at 369.53 nm and its Repetition Rate can be scaled up using high harmonic mode locking. We show that our source can produce arbitrary pulse patterns using a programmable pulse pattern generator and fast modulating components. Finally, simulations demonstRate that our laser is capable of performing resonant, temperature-insensitive, two-qubit quantum logic gates on trapped Yb+ ions faster than the trap period and with fidelity above 99%.
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ultrafast high Repetition Rate ultraviolet fiber based laser source application towards yb fast quantum logic
arXiv: Optics, 2016Co-Authors: Mahmood Irtiza Hussain, M J Petrasiunas, Christopher D B Bentley, Richard L Taylor, Andre R R Carvalho, Joseph Hope, Erik Streed, Mirko Lobino, D KielpinskiAbstract:Trapped ions are one of the most promising approaches for the realization of a universal quantum computer. Faster quantum logic gates could dramatically improve the performance of trapped-ion quantum computers, and require the development of suitable high Repetition Rate pulsed lasers. Here we report on a robust frequency upconverted fiber laser based source, able to deliver 2.5 ps ultraviolet (UV) pulses at a stabilized Repetition Rate of 300.00000 MHz with an average power of 190 mW. The laser wavelength is resonant with the strong transition in Ytterbium (Yb+) at 369.53 nm and its Repetition Rate can be scaled up using high harmonic mode locking. We show that our source can produce arbitrary pulse patterns using a programmable pulse pattern generator and fast modulating components. Finally, simulations demonstRate that our laser is capable of performing resonant, temperature-insensitive, two-qubit quantum logic gates on trapped Yb$^+$ ions faster than the trap period and with fidelity above 99%.
Jan Rothhardt - One of the best experts on this subject based on the ideXlab platform.
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Exploring new avenues in high Repetition Rate table-top coherent extreme ultraviolet sources
Light: Science & Applications, 2015Co-Authors: Steffen Hädrich, Manuel Krebs, Armin Hoffmann, Arno Klenke, Jan Rothhardt, Jens Limpert, Andreas TünnermannAbstract:A photonic-crystal fibre filled with krypton gas has been used to realize an extreme-ultraviolet source with a megahertz Repetition Rate. Applications such as photoelectron spectroscopy and coherent diffractive imaging ideally require extreme-ultraviolet sources with a high photon flux and a high Repetition Rate, but achieving both properties simultaneously is challenging. Now, scientists in Jena, Germany, have solved this problem by using a krypton-filled kagome fibre to nonlinearly compress laser pulses at a Rate of 10.7 megahertz. They then used the rapid stream of compressed pulses to drive high-harmonic generation in a gas jet. This resulted in the generation of over 50 microwatts at a photon energy of 27.7 electron volts. The approach could lead to a new breed of more compact and efficient high-harmonic-generation sources.
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generation of µw level plateau harmonics at high Repetition Rate
Optics Express, 2011Co-Authors: Steffen Hädrich, Manuel Krebs, Jan Rothhardt, Jens Limpert, Henning Carstens, Stefan Demmler, Andreas TünnermannAbstract:The process of high harmonic generation allows for coherent transfer of infrared laser light to the extreme ultraviolet spectral range opening a variety of applications. The low conversion efficiency of this process calls for optimization or higher Repetition Rate intense ultrashort pulse lasers. Here we present state-of-the-art fiber laser systems for the generation of high harmonics up to 1 MHz Repetition Rate. We perform measurements of the average power with a calibRated spectrometer and achieved µW harmonics between 45 nm and 61 nm (H23-H17) at a Repetition Rate of 50 kHz. Additionally, we show the potential for few-cycle pulses at high average power and Repetition Rate that may enable water-window harmonics at unprecedented Repetition Rate.
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high Repetition Rate fiber amplifier pumped sub 20 fs optical parametric amplifier
Optics Express, 2007Co-Authors: Jan Rothhardt, Steffen Hädrich, Jens Limpert, Damian N Schimpf, Andreas TünnermannAbstract:We report on a high Repetition Rate noncollinear optical parametric amplifier system (NOPA) based on a cavity dumped Ti:Sapphire oscillator providing the signal, and an Ytterbium-doped fiber amplifier pumping the device. Temporally synchronized NOPA pump pulses are created via soliton generation in a highly nonlinear photonic crystal fiber. This soliton is fiber amplified to high pulse-energies at high Repetition Rates. The broadband Ti:Sapphire laser pulses are parametrically amplified either directly or after additional spectral broadening. The approach of fiber-based pump-pulse generation from a femtosecond laser, that emits in the spectral region of NOPA–gain, offers enhanced long-term stability and pulse quality compared to conventional techniques, such as signal pulse generation from a high power laser system via filamentation in bulk media. The presented system produces high-energy ultra-short pulses with pulse-durations down to 15.6 fs and pulse-energies up to 500 nJ at a Repetition Rate as high as 2 MHz.
Jens Limpert - One of the best experts on this subject based on the ideXlab platform.
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Exploring new avenues in high Repetition Rate table-top coherent extreme ultraviolet sources
Light: Science & Applications, 2015Co-Authors: Steffen Hädrich, Manuel Krebs, Armin Hoffmann, Arno Klenke, Jan Rothhardt, Jens Limpert, Andreas TünnermannAbstract:A photonic-crystal fibre filled with krypton gas has been used to realize an extreme-ultraviolet source with a megahertz Repetition Rate. Applications such as photoelectron spectroscopy and coherent diffractive imaging ideally require extreme-ultraviolet sources with a high photon flux and a high Repetition Rate, but achieving both properties simultaneously is challenging. Now, scientists in Jena, Germany, have solved this problem by using a krypton-filled kagome fibre to nonlinearly compress laser pulses at a Rate of 10.7 megahertz. They then used the rapid stream of compressed pulses to drive high-harmonic generation in a gas jet. This resulted in the generation of over 50 microwatts at a photon energy of 27.7 electron volts. The approach could lead to a new breed of more compact and efficient high-harmonic-generation sources.
-
generation of µw level plateau harmonics at high Repetition Rate
Optics Express, 2011Co-Authors: Steffen Hädrich, Manuel Krebs, Jan Rothhardt, Jens Limpert, Henning Carstens, Stefan Demmler, Andreas TünnermannAbstract:The process of high harmonic generation allows for coherent transfer of infrared laser light to the extreme ultraviolet spectral range opening a variety of applications. The low conversion efficiency of this process calls for optimization or higher Repetition Rate intense ultrashort pulse lasers. Here we present state-of-the-art fiber laser systems for the generation of high harmonics up to 1 MHz Repetition Rate. We perform measurements of the average power with a calibRated spectrometer and achieved µW harmonics between 45 nm and 61 nm (H23-H17) at a Repetition Rate of 50 kHz. Additionally, we show the potential for few-cycle pulses at high average power and Repetition Rate that may enable water-window harmonics at unprecedented Repetition Rate.
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2 mhz Repetition Rate 200 ps pulse duration from a monolithic passively q switched microchip laser
Applied Physics B, 2009Co-Authors: Alexander Steinmetz, Jens Limpert, D Nodop, Rico Hohmuth, W Richter, Andreas TünnermannAbstract:We present a monolithic passively Q-switched microchip laser generating 200 ps pulses at a wavelength of 1064 nm with a Repetition Rate of up to 2 MHz. While maintaining transversal and longitudinal single-mode operation, the pulse energy can be changed from 130 nJ to 400 nJ by varying the pump conditions of the laser. To the best of our knowledge, the Repetition Rate of 2 MHz is by far the highest ever reported from such lasers operating in the sub-ns regime.
-
high Repetition Rate fiber amplifier pumped sub 20 fs optical parametric amplifier
Optics Express, 2007Co-Authors: Jan Rothhardt, Steffen Hädrich, Jens Limpert, Damian N Schimpf, Andreas TünnermannAbstract:We report on a high Repetition Rate noncollinear optical parametric amplifier system (NOPA) based on a cavity dumped Ti:Sapphire oscillator providing the signal, and an Ytterbium-doped fiber amplifier pumping the device. Temporally synchronized NOPA pump pulses are created via soliton generation in a highly nonlinear photonic crystal fiber. This soliton is fiber amplified to high pulse-energies at high Repetition Rates. The broadband Ti:Sapphire laser pulses are parametrically amplified either directly or after additional spectral broadening. The approach of fiber-based pump-pulse generation from a femtosecond laser, that emits in the spectral region of NOPA–gain, offers enhanced long-term stability and pulse quality compared to conventional techniques, such as signal pulse generation from a high power laser system via filamentation in bulk media. The presented system produces high-energy ultra-short pulses with pulse-durations down to 15.6 fs and pulse-energies up to 500 nJ at a Repetition Rate as high as 2 MHz.