Femtosecond 8.5 mu m source based on intrapulse difference-frequency generation of 2.1 mu m pulses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00494107" target="_blank" >RIV/68378271:_____/18:00494107 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1364/OL.43.001335" target="_blank" >http://dx.doi.org/10.1364/OL.43.001335</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OL.43.001335" target="_blank" >10.1364/OL.43.001335</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Femtosecond 8.5 mu m source based on intrapulse difference-frequency generation of 2.1 mu m pulses

Popis výsledku v původním jazyce

We report on a femtosecond ∼8.5  μm, ∼2  μJ source based on the intrapulse difference-frequency generation (DFG) of 2.1 μm pulses in an AgGaSe2 (AGSe) crystal.Compared to the conventional ∼0.8 or 1 μm near-infrared (IR) pulses,a ∼2  μm driver for intrapulse DFG can provide more efficient conversion into the wavelengths longer than 5 μm due to a lower quantum defect and is more suitable for the non-oxide nonlinear crystals that have a relatively low bandgap energy. Using 26 fs, 2.1 μm pulses for type-II intrapulse DFG,we have generated intrinsically carrier-envelope phase-stable idler pulses with a conversion efficiency of 0.8%,which covers the wavelength range of 7–11 μm.Our simulation study shows that the blueshift of intrapulse DFG is assisted by self-phase modulation of the driving pulses in AGSe.The idler pulses are particularly useful for strong-field experiments in nanostructures,as well as for seeding parametric amplifiers in the long-wavelength IR.n

Název v anglickém jazyce

Femtosecond 8.5 mu m source based on intrapulse difference-frequency generation of 2.1 mu m pulses

Popis výsledku anglicky

We report on a femtosecond ∼8.5  μm, ∼2  μJ source based on the intrapulse difference-frequency generation (DFG) of 2.1 μm pulses in an AgGaSe2 (AGSe) crystal.Compared to the conventional ∼0.8 or 1 μm near-infrared (IR) pulses,a ∼2  μm driver for intrapulse DFG can provide more efficient conversion into the wavelengths longer than 5 μm due to a lower quantum defect and is more suitable for the non-oxide nonlinear crystals that have a relatively low bandgap energy. Using 26 fs, 2.1 μm pulses for type-II intrapulse DFG,we have generated intrinsically carrier-envelope phase-stable idler pulses with a conversion efficiency of 0.8%,which covers the wavelength range of 7–11 μm.Our simulation study shows that the blueshift of intrapulse DFG is assisted by self-phase modulation of the driving pulses in AGSe.The idler pulses are particularly useful for strong-field experiments in nanostructures,as well as for seeding parametric amplifiers in the long-wavelength IR.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optics Letters

ISSN

0146-9592

e-ISSN

—

Svazek periodika

43

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1335-1338

Kód UT WoS článku

000427488000037

EID výsledku v databázi Scopus

2-s2.0-85043977721