Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

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

Abstract

We report on a femtosecond 8.5μm, 2μJ 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 2μm 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.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Few-cycle pulses tunable from 3 to 7 µm via intrapulse difference-frequency generation in oxide LGN crystals

Jinsheng Liu, Jingui Ma, Dazhi Lu, Xingbin Gu, Ziruo Cui, Peng Yuan, Jing Wang, Guoqiang Xie, Haohai Yu, Huaijin Zhang, and Liejia Qian
Opt. Lett. 45(20) 5728-5731 (2020)

10-µJ few-cycle 12-µm source based on difference-frequency generation driven by a 1-kHz mid-wave infrared OPCPA

Martin Duda, Lorenz von Grafenstein, Martin Bock, Dennis Ueberschaer, Pia Fuertjes, Lukáš Roškot, Martin Smrž, Ondřej Novák, and Uwe Griebner
Opt. Lett. 47(11) 2891-2894 (2022)

Generation of 1  kHz, 2.3  mJ, 88  fs, 2.5  μm pulses from a Cr2+:ZnSe chirped pulse amplifier

Xiaoming Ren, Lam H. Mach, Yanchun Yin, Yang Wang, and Zenghu Chang
Opt. Lett. 43(14) 3381-3384 (2018)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved