High energy
Ultrabroad tuning range from 192 to 2600 nm
Up to 50 mJ in VIS
Up to 20 Hz repetition rate
| 제조사 | EKSPLA UAB |
|---|---|
| 가격 | TBD |
| 문의 | 김길석박사, 하윤미과장 (02-3461-1103) |
NT342 series
- Integrated OPO system
- High energy
- Ultrabroad tuning range from 192 to 2600 nm
- Up to 50 mJ in VIS
- Up to 20 Hz repetition rate
Features & Applications
FEATURES
- Hands-free no gap wavelength tuning from 192 to 2600 nm
- Up to 50 mJ pulse energy in visible spectral range
- Up to 10 mJ pulse energy in UV spectral range
- Less than 5 cm⁻¹ linewidth
- 3–5 ns pulse duration
- Up to 20 Hz pulse repetition rate
- Remote control pad
- PC control via RS232 and LabVIEW™ drivers
- Optional separate shared output port for 532/1064 nm beam (separate output port for the 355 nm beam is standard)
- OPO pump energy monitoring
- Replacement of flashlamps without misalignment of the laser cavity
- Hermetically sealed oscillator cavity protects non-linear crystals from dust and humidity
APPLICATIONS
- Laser-induced fluorescence
- Flash photolysis
- Photobiology
- Remote sensing
- Time-resolved spectroscopy
- Non-linear spectroscopy
Description
The NT342 series tunable wavelength nanosecond laser seamlessly integrates the nanosecond optical parametric oscillator and the Nd:YAG Q-switched nanosecond laser – all in a compact housing.
The main system features are: hands-free wavelength tuning from UV to IR, high conversion efficiency, optional fiber-coupled output and separate output port for pump laser beam. NT342 has a linewidth of less than 5 cm⁻¹, which is ideal for many spectroscopic applications.
The laser is designed for convenient use. It can be controlled from remote keypad or from a PC through an RS232 interface using LabView™ drivers that are supplied with the system. The remote keypad features a backlit display that is easy to read even through laser safety googles. The OPO pump energy monitoring system helps to control pump laser parameters. Replacement of laser flashlamps can be done without misalignment of the laser cavity and/or deterioration of laser performance.
Tuning range extensions
| Option | Feature |
|---|---|
| -SH | Second harmonic generator for 210 – 410 nm range |
| -SF | Sum-frequency generator for 300 – 410 nm range with high pulse energy |
| -SH/SF | Combined option for highest pulse energy in 210 – 410 nm range |
| -DUV | Deep UV option for 192 – 210 nm range |
Accessories and Options
| Option | Features |
|---|---|
| -FC | Fiber coupled output in 350 – 2000 nm range |
| -ATTN | Pulse energy attenuator |
| -H, -2H | Separate shared output port for Nd:YAG pump laser harmonics (532 or 1064 nm wavelengths) |
| -AW | Air cooled power supply |
Specifications
| Model | NT342B | NT342C |
|---|---|---|
| OPO 1) | ||
| Wavelength range 2) | ||
| Signal | 410 – 710 nm 3) | |
| Idler | 710 – 2600 nm | |
| SH generator (optional) | 210 – 410 nm | |
| SH/SF generator (optional) | 210 – 410 nm | |
| DUV generator (optional) | 192 – 210 nm | |
| Output pulse energy | ||
| OPO 4) | 30 mJ | 50 mJ |
| SH generator (optional) 5) | 4 mJ | 6.5 mJ |
| SH/SF generator (optional) 6) | 6 mJ | 10 mJ |
| DUV generator (optional) 7) | 0.6 mJ | 1 mJ |
| Linewidth | <5 cm-1 8) | |
| Tuning resolution 9) | ||
| Signal (410 – 710 nm) | 1 cm⁻¹ | |
| Idler (710 – 2600 nm) | 1 cm⁻¹ | |
| SH/SF/DUV beam (192 – 410 nm) | 2 cm⁻¹ | |
| Pulse duration 10) | 3 – 5 ns | |
| Typical beam diameter 11) | 5 mm | 7 mm |
| Typical beam divergence 12) | < 2 mrad | |
| Polarization | ||
| Signal beam | horizontal | |
| Idler beam | vertical | |
| SH/SF beam | horizontal | |
| DUV beam | vertical | |
| PUMP LASER 13) | ||
| Pump wavelength | 355 nm | |
| Max pump pulse energy | 100 mJ | 150 mJ |
| Pulse duration | 4 – 6 ns | |
| Beam quality | Hat-top in near field, without hot spots | |
| Beam divergence | < 0.6 mrad | |
| Pulse energy stability (StdDev) | < 3.5 % | |
| Pulse repetition rate | 10 or 20 Hz | 10 Hz |
| PHYSICAL CHARACTERISTICS | ||
| Unit size (W × L × H) 14) | 456 × 821× 270 mm | |
| Power supply size (W × L × H) | 330 × 490 × 585 mm | |
| Umbilical length | 2.5 m | |
| OPERATING REQUIREMENTS | ||
| Water consumption (max 20 °C) 15) | 6 l/min | |
| Room temperature | 15 – 30 °C | |
| Relative humidity | 20 – 80 % (non-condensing) | |
| Mains voltage | 208 or 240 V AC, single phase 50/60 Hz | |
| Power consumption 16) | 1.8 / 3.4 kVA | |
- Due to continuous improvement, all specifications are subject to change. Parameters marked typical are illustrative; they are indications of typical performance and will vary with each unit we manufacture. Unless stated otherwise, all specifications are measured at 450 nm and for basic system without options.
- Hands-free tuning range is from 192 nm to 2600 nm.
- Tuning range extension to 400 – 709 nm is optional.
- Measured at 450 nm. See tuning curves for typical outputs at other wavelengths.
- Measured at 260 nm. See tuning curves for typical outputs at other wavelengths.
- Measured at 340 nm. SF generator is optimized for maximum output in 300 – 410 nm range. See tuning curves for typical outputs at other wavelengths.
- Measured at 200 nm.
- Linewidth is <8 cm⁻¹ for 210 – 410 nm range.
- Represents wavelength change quantum for manual input from control pad. When wavelength is controlled from PC, the wavelength set precision is ~1 cm⁻¹ in OPO range and ~2 cm⁻¹ in SH/SFG range.
- FWHM measured with photodiode featuring 1 ns rise time and 300 MHz bandwidth oscilloscope.
- Beam diameter is measured at 450 nm at the FWHM level and can vary depending on the pump pulse energy.
- Full angle measured at the FWHM level at 450 nm.
- Separate output port for the 355 nm beam is standard. Outputs for 1064 nm and 532 nm beams are optional. Laser output will be optimised for OPO operation and specifications may vary with each unit we manufacture.
- Length from 821 to 1220 mm depending on configuration.
- At 10 Hz pulse repetition rate. Air cooled power supply is available.
- At 10/20 Hz pulse repetition rate.
Note: Laser must be connected to the mains electricity all the time. If there will be no mains electricity for longer that 1 hour then laser (system) needs warm up for a few hours before switching on.
