Broadband, few-cycle mid-infrared continuum based on the intra-pulse difference frequency generation with BGSe crystals

JINWEI ZHANG; QING WANG; JINGJIE HAO; HEYAN LIU; JIYONG YAO; ZHUANG LI; JIE LIU; KA FAI MAK

doi:10.1364/OE.411664

Broadband, few-cycle mid-infrared continuum based on the intra-pulse difference frequency generation with BGSe crystals

JINWEI ZHANG^*, QING WANG, JINGJIE HAO, HEYAN LIU, JIYONG YAO, ZHUANG LI, JIE LIU, KA FAI MAK

^*Corresponding author for this work

School of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We demonstrate for the first time the generation of octave-spanning mid-infrared using a BGSe nonlinear crystal. A Cr:ZnS laser system delivering 28-fs pulses at a central wavelength of 2.4 μmis used as the pump source, which drives the intra-pulse difference frequency generation inside the BGSe crystal. As a result, a coherent broadband mid-infrared continuum spanning from 6 to 18 μm has been obtained. It shows that the BGSe crystal is a promising material for broadband, few-cycle mid-infrared generation via frequency down conversion with femtosecond pump sources.

Original language	English
Pages (from-to)	37903-37909
Number of pages	7
Journal	Optics Express
Volume	28
Issue number	25
DOIs	https://doi.org/10.1364/OE.411664
Publication status	Published - 7 Dec 2020

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title = "Broadband, few-cycle mid-infrared continuum based on the intra-pulse difference frequency generation with BGSe crystals",

abstract = "We demonstrate for the first time the generation of octave-spanning mid-infrared using a BGSe nonlinear crystal. A Cr:ZnS laser system delivering 28-fs pulses at a central wavelength of 2.4 μmis used as the pump source, which drives the intra-pulse difference frequency generation inside the BGSe crystal. As a result, a coherent broadband mid-infrared continuum spanning from 6 to 18 μm has been obtained. It shows that the BGSe crystal is a promising material for broadband, few-cycle mid-infrared generation via frequency down conversion with femtosecond pump sources.",

author = "JINWEI ZHANG and QING WANG and JINGJIE HAO and HEYAN LIU and JIYONG YAO and ZHUANG LI and JIE LIU and MAK, \{KA FAI\}",

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AU - ZHANG, JINWEI

AU - WANG, QING

AU - HAO, JINGJIE

AU - LIU, HEYAN

AU - YAO, JIYONG

AU - LI, ZHUANG

AU - LIU, JIE

AU - MAK, KA FAI

PY - 2020/12/7

Y1 - 2020/12/7

N2 - We demonstrate for the first time the generation of octave-spanning mid-infrared using a BGSe nonlinear crystal. A Cr:ZnS laser system delivering 28-fs pulses at a central wavelength of 2.4 μmis used as the pump source, which drives the intra-pulse difference frequency generation inside the BGSe crystal. As a result, a coherent broadband mid-infrared continuum spanning from 6 to 18 μm has been obtained. It shows that the BGSe crystal is a promising material for broadband, few-cycle mid-infrared generation via frequency down conversion with femtosecond pump sources.

AB - We demonstrate for the first time the generation of octave-spanning mid-infrared using a BGSe nonlinear crystal. A Cr:ZnS laser system delivering 28-fs pulses at a central wavelength of 2.4 μmis used as the pump source, which drives the intra-pulse difference frequency generation inside the BGSe crystal. As a result, a coherent broadband mid-infrared continuum spanning from 6 to 18 μm has been obtained. It shows that the BGSe crystal is a promising material for broadband, few-cycle mid-infrared generation via frequency down conversion with femtosecond pump sources.

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SN - 1094-4087

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SP - 37903

EP - 37909

JO - Optics Express

JF - Optics Express

IS - 25

ER -

Broadband, few-cycle mid-infrared continuum based on the intra-pulse difference frequency generation with BGSe crystals

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