Nanosecond laser system NT340

broadly tunablefor spectroscopyautomatic

The NT340 series is a high energy, broadly tunable nanosecond laser system designed for a wide range of spectroscopic applications. It delivers hands-free, no-gap tuning from 192 nm to 4400 nm at up to 20 Hz repetition rate, all from a single compact housing. With a linewidth of less than 5 cm⁻¹ and a wide choice of options, the NT340 is an excellent choice for demanding spectroscopy tasks.

Features

• Customers recognized reliability
• Two years warranty
• Hands-free no gap wavelength tuning from 192 to 4400 nm (automatic wavelength scan is programmable)
• Up to 150 mJ pulse energy in visible spectral range
• Up to 22 mJ pulse energy in UV spectral range
• Up to 20 mJ pulse energy in MIR spectral range
• 3 – 5 ns pulse duration
• Up to 20 Hz pulse repetition rate
• Remote control via key pad or PC
• Optional separate shared output port for 532/1064 nm beam (separate output port for the 355 nm beam is standard)
• OPO pump energy monitoring
• 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
• Vibrational spectroscopy
• Cavity ring-down CRDS
• Cavity ring-down laser absorption CRLAS spectroscopy
• Infrared spectroscopy
• Gas spectroscopy

Description
The NT340 series tunable wavelength nanosecond laser seamlessly integrates a nanosecond optical parametric oscillator and a Nd:YAG Q-switched nanosecond laser in a compact housing. Key system features include hands-free wavelength tuning from UV to IR, high conversion efficiency, optional fiber-coupled output, and a separate output port for the pump laser beam. The system offers a linewidth of less than 5 cm⁻¹, ideal for many spectroscopic applications. The OPO pump energy monitoring system allows precise control of pump laser parameters, and flashlamp replacement can be performed without misalignment or performance loss.

Benefits

• Hands-free wavelength tuning – no need for physical intervention
• Wide tunability (192 – 4400 nm) and high pulse energy (up to 150 mJ) for extensive material investigation
• Narrow linewidth (down to 3 cm⁻¹) and superior tuning resolution (1–2 cm⁻¹) for high quality spectra
• Flashlamps replacement without misalignment saves maintenance costs
• High integration level saves laboratory space
• In-house design and manufacturing ensures reliable warranty and post-warranty service
• Variety of control interfaces: USB, RS232, optional LAN, WLAN for easy integration
• Attenuator and fiber coupling options for flexible experimental setups

Tuning Range Extending Optional Add-ons

• -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 output
• -MIR: Mid infrared option for 2500–4400 nm range output

Accessories and Other Optional Add-ons

• -FC: Fiber coupled output in 350–2000 nm range
• -ATTN: Attenuator output in 350–2600 nm range
• -H, -2H: Separate shared output port for pump laser harmonic (532 or 1064 nm wavelengths)
• -AW: Air cooled power supply
• -FWS: Fast wavelength scanning option for all ranges (excluding between ranges), wavelength shift on laser shot

Characteristics / Technical Specifications

• Model variants: NT342B, NT342C, NT342E, NT342H
• OPO wavelength range: Signal 410–710 nm, Idler 710–2600 nm
• SH generator (optional): 210–410 nm
• SH/SF generator (optional): 210–410 nm
• DUV generator (optional): 192–210 nm
• MIR generator (optional): 2500–4400 nm (NT342C only)
• Output pulse energy (max): OPO up to 150 mJ (NT342H), SH generator up to 15 mJ, SH/SF generator up to 22 mJ, DUV generator up to 3 mJ, MIR generator up to 20 mJ
• Linewidth: <5 cm⁻¹
• Minimal tuning step: Signal/Idler 1 cm⁻¹, SH/SF/DUV 2 cm⁻¹, MIR 1 cm⁻¹
• Pulse duration: 3–5 ns (OPO), 4–7 ns (pump laser)
• Typical beam diameter: up to 12 mm (NT342H)
• Typical beam divergence: <2 mrad (OPO), <0.6 mrad (pump laser)
• Polarization: Signal/SH/SF horizontal, Idler/DUV vertical, MIR horizontal (NT342C only)
• Pump wavelength: 355 nm
• Typical pump pulse energy: up to 400 mJ (NT342H)
• Pulse energy stability (StdDev): <3.5%
• Pulse repetition rate: up to 20 Hz
• Unit size (W × L × H): 456 × 821 × 270 mm
• Power supply size (W × L × H): 330 × 490 × 585 mm
• Umbilical length: 2.5 m
• Water consumption: <10 l/min (max 20 °C)
• Room temperature: 18–27 °C
• Relative humidity: 20–80% (non-condensing)
• Power requirements: 200–240 VAC, single phase, 50/60 Hz
• Power consumption: <1.5 kVA
• Cleanliness of the room: not worse than ISO Class 9