Hongqiang Xie
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View article: The use of blastocysts developing from nonpronuclear and monopronuclear zygotes can be considered in PGT-SR: a retrospective cohort study
The use of blastocysts developing from nonpronuclear and monopronuclear zygotes can be considered in PGT-SR: a retrospective cohort study Open
Chromosome abnormalities did not increase the occurrence of abnormal fertilization. There were already a large number of embryos in the PGT-SR population, and routine inclusion of 0PN and 1PN embryos in the PGT-SR cycle is not recommended …
View article: Amplification characteristics of N<i/>2+ lasing at multiple wavelengths generated by polarization-modulated femtosecond laser fields
Amplification characteristics of N<i/>2+ lasing at multiple wavelengths generated by polarization-modulated femtosecond laser fields Open
Multiple gain routes complicate the amplification behaviors of N 2 + lasing. A direct comparison of the amplification processes of various lasing lines of N 2 + is still lacking to date, mainly because the efficient generation of different…
View article: Three-dimensional Bose–Einstein gap solitons in optical lattices with fractional diffraction
Three-dimensional Bose–Einstein gap solitons in optical lattices with fractional diffraction Open
View article: OGM and WES identifies translocation breakpoints in PKD1 gene in an polycystic kidney patient and healthy baby delivered using PGT
OGM and WES identifies translocation breakpoints in PKD1 gene in an polycystic kidney patient and healthy baby delivered using PGT Open
View article: Enhanced Population on Ionic Excited States by Synchronized Ionization and Multiphoton Resonance
Enhanced Population on Ionic Excited States by Synchronized Ionization and Multiphoton Resonance Open
We study population distributions and lasing actions of N_2^+ driven by femtosecond lasers with various wavelengths, and uncover an efficient ionic excitation mechanism induced by synchronized ionization and multiphoton resonance. Our resu…
View article: OGM and WES Identifies Translocation Breakpoints in PKD1 Gene in an Polycystic Kidney Patient and Healthy Baby Delivered Using PGT
OGM and WES Identifies Translocation Breakpoints in PKD1 Gene in an Polycystic Kidney Patient and Healthy Baby Delivered Using PGT Open
Background Whole exome sequencing (WES) is a routine tool for diagnostic confirmation of genetic diseases. Autosomal dominant polycystic kidney disease (ADPKD) is one of the most common autosomal dominant genetic diseases and WES was usual…
View article: Destructive interference in N<sub>2</sub><sup>+</sup> lasing
Destructive interference in N<sub>2</sub><sup>+</sup> lasing Open
We report an unexpected experimental observation in rotation-resolved N 2 + lasing that the R-branch lasing intensity from a single rotational state in the vicinity of 391 nm can be greatly stronger than the P-branch lasing intensity summi…
View article: Observation of Refractive Index Line Shape in Ultrafast XUV Transient Absorption Spectroscopy
Observation of Refractive Index Line Shape in Ultrafast XUV Transient Absorption Spectroscopy Open
Ultrafast extreme ultraviolet (XUV) transient absorption spectroscopy measures the time- and frequency-dependent light losses after light–matter interactions. In the linear region, the matter response to an XUV light field is usually deter…
View article: Ultraviolet supercontinuum generation driven by ionic coherence in a strong laser field
Ultraviolet supercontinuum generation driven by ionic coherence in a strong laser field Open
Supercontinuum (SC) light sources hold versatile applications in many fields ranging from imaging microscopic structural dynamics to achieving frequency comb metrology. Although such broadband light sources are readily accessible in the vi…
View article: The low fetal fraction at the first trimester is associated with adverse pregnancy outcomes in IVF singleton pregnancies with single embryo transfer from frozen cycles
The low fetal fraction at the first trimester is associated with adverse pregnancy outcomes in IVF singleton pregnancies with single embryo transfer from frozen cycles Open
View article: High-Sensitivity Gas Detection with Air-Lasing-Assisted Coherent Raman Spectroscopy
High-Sensitivity Gas Detection with Air-Lasing-Assisted Coherent Raman Spectroscopy Open
Remote or standoff detection of greenhouse gases, air pollutants, and biological agents with innovative ultrafast laser technology attracts growing interests in recent years. Hybrid femtosecond/picosecond coherent Raman spectroscopy is con…
View article: Mechanism and control of rotational coherence in femtosecond laser-driven N2+
Mechanism and control of rotational coherence in femtosecond laser-driven N2+ Open
We investigate the formation of rotational coherence of N resonantly interacting with an intense femtosecond laser field by numerical simulations based on a strong-field ionization-coupling model described with the density matrix forma…
View article: Role of rotational coherence in femtosecond-pulse-driven nitrogen ion lasing
Role of rotational coherence in femtosecond-pulse-driven nitrogen ion lasing Open
We experimentally investigated the rotationally resolved polarization\ncharacteristics of N$_2^+$ lasing at 391 and 428 nm using a pump-seed scheme.\nBy varying the relative angle between the linear polarizations of the pump and\nseed, it …
View article: Association of Ang-2, vWF, and EVLWI with risk of mortality in sepsis patients with concomitant ARDS: A retrospective study
Association of Ang-2, vWF, and EVLWI with risk of mortality in sepsis patients with concomitant ARDS: A retrospective study Open
View article: Sub-cycle coherent control of ionic dynamics via transient ionization injection
Sub-cycle coherent control of ionic dynamics via transient ionization injection Open
We investigate the interwoven dynamic evolutions of neutral nitrogen molecules together with nitrogen ions created through transient tunnel ionization in an intense laser field. By treating the molecules as open quantum systems, it is foun…
View article: Manipulation of a weak signal pulse by optical soliton via double electromagnetically induced transparency
Manipulation of a weak signal pulse by optical soliton via double electromagnetically induced transparency Open
We propose a scheme to realize the manipulation of a weak signal pulse by ultraslow optical soliton in a coherent inverted-Y-type atomic system via double electromagnetically induced transparency (EIT). Based on Maxwell-Bloch equations, we…
View article: Observation on the curative effect of long intestinal tube in the treatment of phytobezoar intestinal obstruction
Observation on the curative effect of long intestinal tube in the treatment of phytobezoar intestinal obstruction Open
The aim of the study was to observe the curative effect of long intestinal tube (LT) in the treatment of phytobezoar intestinal obstruction. We performed a retrospective study of patients with phytobezoar intestinal obstruction who underwe…
View article: Nonperturbative generation of above-threshold harmonics from pre-excited argon atoms in intense mid-infrared laser fields
Nonperturbative generation of above-threshold harmonics from pre-excited argon atoms in intense mid-infrared laser fields Open
We experimentally investigate the generation of above-threshold harmonics completely from argon atoms on an excited state using mid-infrared femtosecond laser pulses. The highly nonlinear dependences of the observed signal on the pulse ene…
View article: Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields
Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields Open
We carry out a combined theoretical and experimental investigation on the population distributions in the ground and excited states of tunnel-ionized nitrogen molecules at various driver wavelengths in the near- and midinfrared range. Our …
View article: Generation of elliptically polarized nitrogen ion laser fields using two-color femtosecond laser pulses
Generation of elliptically polarized nitrogen ion laser fields using two-color femtosecond laser pulses Open
We experimentally investigate generation of nitrogen molecular ion ("Equation missing") lasers with two femtosecond laser pulses at different wavelengths. The first pulse serves as the pump which ioni…
View article: Time-resolved shadowgraphs of transient plasma induced by spatiotemporally focused femtosecond laser pulses in fused silica glass
Time-resolved shadowgraphs of transient plasma induced by spatiotemporally focused femtosecond laser pulses in fused silica glass Open
We report on experimental observations of formation and evolution of transient plasma produced in fused silica glass with spatiotemporally focused (STF) femtosecond laser pulses using a pump-probe shadow imaging technique. Surprisingly, th…
View article: Mid-infrared ultrafast laser pulses induced third harmonic generation in nitrogen molecules on an excited state
Mid-infrared ultrafast laser pulses induced third harmonic generation in nitrogen molecules on an excited state Open
View article: Generation of elliptically polarized nitrogen-ion laser fields using two-color femtosecond laser pulses
Generation of elliptically polarized nitrogen-ion laser fields using two-color femtosecond laser pulses Open
We experimentally investigate generation of molecular nitrogen-ion lasers with two femtosecond laser pulses at different wavelengths. The first pulse serves as the pump which ionizes the nitrogen molecules and excites the molecular ions to…
View article: Outcomes of 13 ICSI-PGD cycles with ejaculated spermatozoa in patients with Klinefelter syndrome
Outcomes of 13 ICSI-PGD cycles with ejaculated spermatozoa in patients with Klinefelter syndrome Open
Dear Editor, Klinefelter syndrome (KS) is the most frequent genetic cause of infertility in men. Paternity can be achieved through intracytoplasmic sperm injection (ICSI) with spermatozoa recovered from ejaculated semen if exist, or testes…
View article: Backward nitrogen lasing actions induced by femtosecond laser filamentation: influence of duration of gain
Backward nitrogen lasing actions induced by femtosecond laser filamentation: influence of duration of gain Open
We experimentally investigate generation of backward 357 nm N-2 laser in a gas mixture of N-2/Ar using 800 nm femtosecond laser pulses, and examine the involved gain dynamics based on pumpprobe measurements. Our findings show that a minimu…
View article: Spatiotemporal focusing does not always improve axial intensity localization
Spatiotemporal focusing does not always improve axial intensity localization Open
We report on an experimental comparison on critical intensities of nonlinear self-focusing in air with conventional focusing and spatiotemporal focusing schemes. Our results show that the conventional focusing with the focal lens completel…
View article: Backward air lasing actions induced by femtosecond laser filamentation: influence of population inversion lifetime
Backward air lasing actions induced by femtosecond laser filamentation: influence of population inversion lifetime Open
We experimentally investigate generation of backward 357 nm N2 laser in a gas mixture of N2/Ar using 800-nm femtosecond laser pulses, and examine the involved gain dynamics based on pump-probe measurements. Our findings show that a minimum…