Generation of femtosecond laser pulses tunable from 380 nm to 465 nm via cascaded nonlinear optical mixing in a noncollinear optical parametric amplifier with a type-I phase matched BBO crystal

Lee, Chao Kuei; Zhang, Jing Yuan; Huang, Jung Y.; Pan, Ci Ling

doi:10.1364/oe.11.001702

Cited by 19 publications

(31 citation statements)

References 4 publications

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“…Because of the advantages it has been utilized extensively in the development of tunable broad band ultrafast laser pulse in ultraviolet, 1 visible and near infrared 2-27 regions can be generated. In comparison with conventional lasing, optical parametric conversion has drawn laser physicists' great attention in the last two decades because it is free from the limitation by the electronic transition energy.…”

Section: Basics Of Ultrashort Pulse Generation By a Non-collinear Parmentioning

confidence: 99%

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Development of Ultrashort Pulse Lasers and Their Applications to Ultrafast Spectroscopy in the Visible and Nir Ranges

Kobayashi¹

2016

Advances in Multi-Photon Processes and Spectroscopy

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Both intensity-dependent nonlinear processes and field-only dependent processes are involved in the process of our discussion of ultrashort pulses Advances in Multi-Photon Processes and Spectroscopy Downloaded from www.worldscientific.com by UNIVERSITY OF OTTAWA on 09/11/16. For personal use only. Development of Ultrashort Pulse Lasers and their Applications 159in the visible range in this subsection. The former group includes SHG and OPA, and the latter includes SPM. For ultrashort pulse generation in the visible spectral range, including a part of the near infrared (NIR) range, the second-order nonlinear polarization effect has been used in a second-order nonlinear crystal without an inversion symmetry. Even though OPF can be used in principle to generate a pulse with a spectrum sufficiently broad to be an ultrashort pulse, it is too weak to have utility for some experimental purposes because it originates from vacuum noise; therefore, OPA is used instead of OPF to obtain a pulse of sufficient intensity. As mentioned previously, an intense pump light (ω p ) amplifies a weak signal (ω s ) without real population inversion in OPA process. In this case, the energy conversion is satisfied among the intense pump light, the weak signal of frequency ω s , and an idler of frequency ω I = ω p − ω s , which is generated simultaneously by means of second-order nonlinear polarization. An idler pulse is generated from a vacuum, which is coupled with the pump and associatively amplifies the signal at a frequency of ω s = ω p − ω i . The spatial and temporal overlaps of the three are needed to be maintained for efficient conversion. In the beginning, the intensity of the pump is much higher than that of signal, signal amplification continues along with pump propagation through the nonlinear crystal, and the energy of the pump photon is consequently divided into the signal photon and the idler photon. This process can be considered to be a parametric down-conversion (PDC) process from the high-frequency pump photon to the low-frequency signal and idler photons by means of an increase in the photon numbers of the signal and idler at the expense of the pump.As mentioned above, in the case of OPA, pump pulse, signal pulse, and idler pulse must meet the following angular frequency dependence:Here, ω j are the angular frequencies with the suffixes p, s, and i corresponding to the pump, signal, and idler, respectively. Since this is the relation among pulses the angular frequencies has some width corresponding to the inverse of the temporal shapes of the pulses. Here the angular frequencies are set to be the center frequencies. Because of the finite widths of the pulses, the relation of (5) has some ambiguity. The relation can be rephrased in the photon view. The corresponding to the three components in the OPA process Advances in Multi-Photon Processes and Spectroscopy Downloaded from www.worldscientific.com by UNIVERSITY OF OTTAWA on 09/11/16. For personal use only. Advances in Multi-Photon Processes and Spectroscopy Downloaded fr...

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Section: Basics Of Ultrashort Pulse Generation By a Non-collinear Parmentioning

confidence: 99%

“…In this expression, χ (1) eff (ω 2 ) is an effective linear susceptibility at frequency ω 2 of the nonlinear material of interest under the influence of a laser at frequency ω 1 .…”

Section: L (ω) = E L (ω)E M (ω) = E L (ω)E L (−ω) = E L (ω)E * L (ω)mentioning

confidence: 99%

Development of Ultrashort Pulse Lasers and Their Applications to Ultrafast Spectroscopy in the Visible and Nir Ranges

Kobayashi¹

2016

Advances in Multi-Photon Processes and Spectroscopy

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“…Optical parametric conversion has drawn great attention from scientists in the last decade since tunable broad band ultrafast laser pulses in ultraviolet (UV), 1 visible and nearinfrared (NIR) 227 regions can be generated. It has grown to wide application especially in ultrafast time-resolved spectroscopy.…”

Section: Femtosecond Pump Probe Experimental Setup Usingmentioning

confidence: 99%

Development of Ultrafast Spectroscopy and Reaction Mechanisms Studied by the Observation of Ultrashort-Life Species and Transition States

Kobayashi

2013

Bulletin of the Chemical Society of Japan

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“…The simultaneous action of the parametric generation, ω p → ω i + ω s , and SFG between the pump and signal wave, ω SF = ω p + ω s , was also analyzed by Huang, Zhu, Zhu, and Ming [2002], where the main goal was to show that this type of the multistep cascading can be used for the simultaneous generation of three fundamental colors. x Lee, Zhang, Huang, and Pan [2003] Abbreviations: BPM -birefringence phase matching; NCPM -noncritical phase matched; QPM -uniformly poled quasi-phase-matched structure; QPOS -quasi-periodical optical superlattices; APQPM -aperiodically poled QPM structure.…”

Section: Opo and Opa Multistep Parametric Processesmentioning

confidence: 99%

Multistep parametric processes in nonlinear optics

2005

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We present a comprehensive overview of different types of parametric interactions in nonlinear optics which are associated with simultaneous phase-matching of several optical processes in quadratic nonlinear media, the so-called multistep parametric interactions. We discuss a number of possibilities of double and multiple phase-matching in engineered structures with the sign-varying second-order nonlinear susceptibility, including (i) uniform and non-uniform quasi-phase-matched (QPM) periodic optical superlattices, (ii) phase-reversed and periodically chirped QPM structures, and (iii) uniform QPM structures in non-collinear geometry, including recently fabricated two-dimensional nonlinear quadratic photonic crystals. We also summarize the most important experimental results on the multi-frequency generation due to multistep parametric processes, and overview the physics and basic properties of multi-color optical parametric solitons generated by these parametric interactions.

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Generation of femtosecond laser pulses tunable from 380 nm to 465 nm via cascaded nonlinear optical mixing in a noncollinear optical parametric amplifier with a type-I phase matched BBO crystal

Cited by 19 publications

References 4 publications

Development of Ultrashort Pulse Lasers and Their Applications to Ultrafast Spectroscopy in the Visible and Nir Ranges

Development of Ultrashort Pulse Lasers and Their Applications to Ultrafast Spectroscopy in the Visible and Nir Ranges

Development of Ultrafast Spectroscopy and Reaction Mechanisms Studied by the Observation of Ultrashort-Life Species and Transition States

Multistep parametric processes in nonlinear optics

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