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Ekspla PL2230型高能量皮秒激光器
Ekspla PL2230型高能量皮秒激光器
Ekspla PL2230型高能量皮秒激光器
Ekspla PL2230型高能量皮秒激光器
Ekspla PL2230型高能量皮秒激光器
Ekspla PL2230型高能量皮秒激光器
Ekspla PL2230型高能量皮秒激光器
Ekspla PL2230型高能量皮秒激光器

Ekspla PL2230型高能量皮秒激光器

¥50万 - 100万

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PL2230

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欧洲

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北京欧兰科技发展有限公司
  • 金牌
  • 第17年
  • 一般经销商
    • 营业执照已审核
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Features

  • Beam profile improvement using advanced beam shaping system

  • Hermetically sealed DPSS master oscillator

  • Diode pumped regenerative amplifier

  • Diode pumped power amplifier producing up to 35 mJ per pulse (140 mJ preliminary) at 1064 nm

  • Air-cooled

  • <28 ps pulse duration

  • Excellent pulse duration stability

  • Up to 100 Hz repetition rate

  • Streak camera triggering pulse with <10 ps jitter

  • Excellent beam pointing stability

  • Thermo stabilized second, third or fourth harmonic generator options

  • PC control trough USB and with supplied LabView™ drivers

  • Remote control via keypad

Applications

  • Time resolved spectroscopy

  • SFG/SHG spectroscopy

  • Nonlinear spectroscopy

  • OPG pumping

  • Remote laser sensing

  • Satellite ranging

  • Other spectroscopic and nonlinear optics applications


Ekspla is proud to introduce the first commercial fully diode pumped high pulse energy mode-locked laser, producing 28 ps pulses with up to 35 mJ (50 mJ preliminary) at 50 Hz pulse repetition rate.

Innovative design

The heart of the system is a diode pumped solid state (DPSS) master oscillator placed in a sealed monolithic block, producing high repetition rate pulse trains (88 MHz) with a low single pulse energy of several nJ. Diode pumped amplifiers are used for amplification of the pulse to 35 mJ (140 mJ preliminary) output. The high?gain regenerative amplifier has an amplification factor in the proximity of 106. After the regenerative amplifier, the pulse is directed to a multipass power amplifier that is optimized for efficient stored energy extraction from the Nd:YAG rod, while maintaining a near Gaussian beam profile and low wavefront distortion. The output pulse energy can be adjusted in approximately 1% steps, while pulse?to-pulse energy stability remains at less than 0.5% rms at 1064 nm.
Angle-tuned KD*P and KDP crystals mounted in thermostabilised ovens are used for second, third, and fourth harmonic generation. Harmonics separators ensure the high spectral purity of each harmonic guided to different output ports. Built-in energy monitors continuously monitor output pulse energy. Data from the energy monitor can be seen on the remote keypad or on a PC monitor.
The laser provides triggering pulses for the synchronisation of your equipment. The lead of the triggering pulse can be up to 500 ns and is user adjustable in ~0.25 ns steps from a personal computer. If required, up to 1000 μs lead of triggering pulse is available when a PRETRIG option is installed.
Precise pulse energy control, excellent short-term and long-term stability, and a 50 Hz repetition rate makes PL2230 series lasers an excellent choice for many demanding scientific applications.

Simple and convenient laser control

For customer convenience the laser can be controlled through a user?friendly remote control pad or USB interface.
The remote pad allows easy control of all parameters and features a back?lit display that is easy to read even with laser safety eye-wear. Alternatively, the laser can be controlled from a personal computer with supplied software for a Windows™ operating system. LabView™ drivers are supplied as well.

相关方案

综合石油/化工其他半导体环保材料
  • 氢硅中表面Si-H键的稳定性检测方案(其它光谱仪)
    Stability of the Si-H bonds on the hydrogen-terminated Si(111) surface has been investigated by sum frequency generation (SFG) spectroscopy in air at room temperature. The SFG observation showed that the Si(111) surface is terminated by a monolayer of monohydride (Si-H) after etching in a concertrated ammonium fluoride (NH4F) solution. The number of Si-H bonds decreased with laser irradiation time and the abstraction rate of hydrogen atoms on Si increased with the increase of input energy of "visible" light. The Si-H bond under irradiation at 1064nm light was more stable than that at 532nm light with a given intensity. A small amount of water in air severely lowered the stability of Si-H bond because of a photoelectrochemical recation under laser irradiation.

    其他 2008-05-11

  • 金/溶液界面,十八烷基硫醇,单分子层膜构象中SFG光谱,和频光谱检测方案(其它光谱仪)
    Sum frequency generation (SFG) spectroscopy using internal reflection geometry was employed to investigate the conformational order of octadecanethiol (ODT) monolayer on gold thin films in an electrolyte solution. This approach is convinced to be useful to study the molecular structure on the electrode/solution interface under electrochemical condition.

    石油/化工 2008-05-07

  • 丙酮,水,液体混合,吉布斯表面,吸附层,结构和能级中和频光谱,分子能级,表面特性,分子光谱检测方案(其它光谱仪)
    The orientation, structure, and energetics of the vapor/acetone-water interface are studied with sum frequency generation vibrational spectroscopy (SFG-VS). We used the polarization null angle (PNA) method in SFGVS to accurately determine the interfacial acetone molecule orientation, and we found that the acetone molecule has its CdO group pointing into bulk phase, one CH3 group pointing up from the bulk, and the other CH3 group pointing into the bulk phase. This well-ordered interface layer induces an antiparallel structure in the second layer through dimer formation from either dipolar or hydrogen bond interactions. With a double-layer adsorption model (DAM) and Langmuir isotherm, the adsorption free energies for the first and second layer are determined as &cent;G°ads,1 ) - 1.9 ( 0.2 kcal /mol and &cent;G°ads,2 ) - 0.9 ( 0.2 kcal /mol, respectively. Since &cent;G°ads,1 is much larger than the thermal energy kT ) 0.59 kcal /mol, and &cent;G°ads,2 is close to kT, the second layer has to be less ordered. Without either strong dipolar or hydrogen bonding interactions between the second and the third layer, the third layer should be randomly thermalized as in the bulk liquid. Therefore, the thickness of the interface is not more than two layers thick. These results are consistent with previous MD simulations for the vapor/pure acetone interface, and undoubtedly provide direct microscopic structural evidences and new insight for the understanding of liquid and liquid mixture interfaces. The experimental techniques and quantitative analysis methodology used for detailed measurement of the liquid mixture interfaces in this report can also be applied to liquid interfaces, as well as other molecular interfaces in general.

    其他 2008-05-05

  • 十八烷基三氯硅烷,OTS,单层膜改性熔融石英中表面水分子结构,pH值相关性,和频光谱（SFG）研究检测方案(其它光谱仪)
    The interface-sensitive spectroscopic method, sum frequency generation (SFG), has been used to investigate the interfacial water structure on a fused quartz surface modiDed by an octadecyltrichlorosilane (OTS) self-assembled monolayer in phosphate bu&#8224;ered solutions at various pHs. The experimental results demonstrate that the water molecules at the quartz/OTS surface &#209;ip while the water molecules at the OTS surface maintain their orientation when the solution pH is changed from neutral to acidic. The results show that most of the silanol groups still exist on the fused quartz surface even after a silane coupling reaction of OTS under the reported experimental conditions.

    石油/化工 2008-04-26

  • 固定化酶中和频光谱检测方案(激光产品)
    采用Ekspla PL2230型锁模脉冲皮秒高能量激光器，搭建了一套皮秒振动和频光谱测量系统SFG，并利用该测量系统研究了固定化酶制备非均相酶杂化催化剂的课题

    石油/化工 2019-07-09

  • 水界面中和频光谱检测方案(其它光谱仪)
    采用由立陶宛Ekspla公司的PL2231型高功率皮秒激光器和光学参量发生器等设备构成的振动和频光谱测量系统，对重负离子复合物在软电荷界面形成独特的水结构的现象进行了实验研究。

    石油/化工 2019-03-06

  • 二甲基硅油Poly(dimethylsiloxane)中紫外和表面等离子体改性动力学检测方案(其它光谱仪)
    In numerous applications in microfluidics, cell growth, soft lithography, and molecular imprinting, the surface of poly(dimethylsiloxane) (PDMS) is modified from a hydrophobic methyl-terminated surface to a hydrophilic hydroxylterminated surface. In this study, we investigated molecular structural and orientational changes at the PDMS-air interface in response to three commonly used surface modification processes: exposure to long-wavelength ultraviolet light (UV), exposure to short-wavelength UV that generates ozone (UVO), and exposure to oxygen plasma (OP). The surfaces of two PDMS compositions (10:1 and 4:1 of base polymer/curing agent) were probed during modification, using monolayer-sensitive IR + visible sum frequency generation (SFG) vibrational spectroscopy, with two different polarization combinations. During PDMS surface modification, the peak intensities of CH3 side groups and CH2 cross-link groups decreased, while peak intensities of Si-OH groups increased. There was no significant change in the average orientation of the CH3 groups on the PDMS surface during modification. The concentration of CH3 groups on the surface decreased exponentially with time, for all three UV, UVO, and OP modification processes, with first order kinetics and time constants of approximately 160, 66, and 0.3 min, respectively. At steady state, residual CH3 groups were detected at the PDMS surface for UV and UVO treatments; however, there were negligible CH3 groups detected after OP modification.

    石油/化工 2016-10-31

  • 水中振动和频光谱检测方案(其它光谱仪)
    We present a direct comparison of phase sensitive sum-frequency generation experiments with phase reconstruction obtained by the maximum entropy method. We show that both methods lead to the same complex spectrum. Furthermore, we discuss the strengths and weaknesses of each of these methods, analyzing possible sources of experimental and analytical errors. A simulation program for maximum entropy phase reconstruction is available at: http://lbp.epfl.ch/.

    石油/化工 2016-10-31

  • 爆炸产生的激波中三维成像，速度。检测方案(粒子图像测速)
    采用立陶宛Ekspla公司的PL2231C-20, 20 Hz, 80 ps,532 nm, &gt;15 mJ/pulse 激光器做光源，采用LaVision公司的sCMOS (2560 x 2160 pixels, 6.5 gm pixel pitch,16-bit depth) 相机。采用四波混频，相位共轭镜补偿等技术实现消除激波密度不均匀性干扰的相干成像。

    其他 2019-01-18

  • 电容中不同压力下电容耦合射频放电鞘层区域的电场反转检测方案(CCD相机)
    Electric field reversals in single and dual-frequency capacitively coupled radio frequency discharges are investigated in the collisionless (1 Pa) and the collisonal (65 Pa) regimes. Phase resolved optical emission spectroscopy is used to measure the excitation of the neutral background gas caused by the field reversal during sheath collapse. The collisionless regime is investigated experimentally in asymmetric neon and hydrogen single frequency discharges operated at 13.56MHz in a GEC reference cell. The collisional regime is investigated experimentally in a symmetric industrial dual-frequency discharge operated at 1.937 and 27.118 MHz. The resulting spatio-temporal excitation profiles are compared with the results of a fluid sheath model in the single frequency case and a particle-in-cell/Monte Carlo simulation in the dual-frequency case. The results show that field reversals occur in both regimes. An analytical model gives an insight into the mechanisms causing the reversal of the electric field. In the dual-frequency case a qualitative comparison between the electric fields resulting from the PIC simulation and from the analytical model is performed. The field reversal seems to be caused by different mechanisms in the respective regimes. In the collisionless case it is caused by electron inertia, whereas in the collisional regime it is caused by a combination of the low mobility of electrons due to collisions and electron inertia. Finally, the field reversal during the sheath collapse seems to be a general source for energy gain of electrons in both single and dual-frequency discharges.

    其他 2011-03-04

  • 氢硅中表面Si-H键的稳定性检测方案(其它光谱仪)
    Stability of the Si-H bonds on the hydrogen-terminated Si(111) surface has been investigated by sum frequency generation (SFG) spectroscopy in air at room temperature. The SFG observation showed that the Si(111) surface is terminated by a monolayer of monohydride (Si-H) after etching in a concertrated ammonium fluoride (NH4F) solution. The number of Si-H bonds decreased with laser irradiation time and the abstraction rate of hydrogen atoms on Si increased with the increase of input energy of "visible" light. The Si-H bond under irradiation at 1064nm light was more stable than that at 532nm light with a given intensity. A small amount of water in air severely lowered the stability of Si-H bond because of a photoelectrochemical recation under laser irradiation.

    其他 2008-05-11

  • 丙酮,水,液体混合,吉布斯表面,吸附层,结构和能级中和频光谱,分子能级,表面特性,分子光谱检测方案(其它光谱仪)
    The orientation, structure, and energetics of the vapor/acetone-water interface are studied with sum frequency generation vibrational spectroscopy (SFG-VS). We used the polarization null angle (PNA) method in SFGVS to accurately determine the interfacial acetone molecule orientation, and we found that the acetone molecule has its CdO group pointing into bulk phase, one CH3 group pointing up from the bulk, and the other CH3 group pointing into the bulk phase. This well-ordered interface layer induces an antiparallel structure in the second layer through dimer formation from either dipolar or hydrogen bond interactions. With a double-layer adsorption model (DAM) and Langmuir isotherm, the adsorption free energies for the first and second layer are determined as &cent;G°ads,1 ) - 1.9 ( 0.2 kcal /mol and &cent;G°ads,2 ) - 0.9 ( 0.2 kcal /mol, respectively. Since &cent;G°ads,1 is much larger than the thermal energy kT ) 0.59 kcal /mol, and &cent;G°ads,2 is close to kT, the second layer has to be less ordered. Without either strong dipolar or hydrogen bonding interactions between the second and the third layer, the third layer should be randomly thermalized as in the bulk liquid. Therefore, the thickness of the interface is not more than two layers thick. These results are consistent with previous MD simulations for the vapor/pure acetone interface, and undoubtedly provide direct microscopic structural evidences and new insight for the understanding of liquid and liquid mixture interfaces. The experimental techniques and quantitative analysis methodology used for detailed measurement of the liquid mixture interfaces in this report can also be applied to liquid interfaces, as well as other molecular interfaces in general.

    其他 2008-05-05

  • 矿物/水界面中表面和频光谱（SFG)检测方案(其它光谱仪)
    Interactions of water and aqueous solutions with mineral surfaces play an important role in a variety of environmental processes. These processes include soil formation, cycling of chemical elements in nature, mobility of heavy metals and other contaminants as well as nutrients, and surface growth of microorganisms (Brown et al., 1999). Such interactions are affected by solution pH, the presence of dissolved ions, and the surface structure of the solid. The objective of this project is to use available experimental techniques and theoretical approaches to develop a comprehensive microscopic picture of how water and solutes interact with mineral surfaces.

    环保 2008-05-01

  • 低碳钢表面,硫醇,自组装,单层膜中显微成像,自组装,单层膜的空间分辨,表面分析检测方案(其它光谱仪)
    Sum frequency generation imaging microscopy has been used to investigate a self-assembled monolayer of an alkanethiol (octadecanethiol, ODT) on a mild steel surface. The images are used to analyze the orientation of the alkanethiol monolayer and the distribution of orientational angles as well as defects in the film. The results show that, on average, ODT forms an ordered monolayer on mild steel when compared to the same monolayer on gold. However, the image analysis suggests that the distribution of tilt angles and conformational defects is greater for ODT on a mild steel surface compared to ODT/Au.

    材料 2008-04-26

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