欧兰科技 (Demo Site)-产品指南-激光器和激光光谱测量系统-可调谐激光器-NT240宽带可调谐千赫兹DPSS激光器-各种激光器，光谱测量，材料应力和形变分析,CCD相机, 光学传感器，精密位移台，PIV，PLIF等- Powered By SiteEngine

Features & Applications

FEATURES

Integrates DPSS pump laser and OPO into a single housing
Hands-free no-gap wavelength tuning from 210 to 2600 nm *
1000 Hz pulse repetition rate
More than 60 µJ output pulse energy in UV
Less than 5 cm⁻¹ linewidth
3 – 6 ns pulse duration
Remote control via key pad or PC
Optional separate output for the OPO pump beam 355 nm, 532 nm or 1064 nm

* Automatic wavelength scan is optional

APPLICATIONS

Laser-induced fluorescence spectroscopy
Pump-probe spectroscopy
Non-linear spectroscopy
Time-resolved spectroscopy
Photobiology
Remote sensing
Determination of the telescope throughput

BENEFITS

Hands-free wavelength tuning – no need for physical intervention
High repetition rate 1000 Hz enables fast data collection
End pumping with diode technology ensures high reliability and low maintenance costs
Narrow linewidth (down to 3 cm⁻¹) and superior tuning resolution (1 – 2 cm⁻¹) allow recording of high quality spectra
High integration level saves valuable space in the laboratory
In-house design and manufacturing of complete systems, including pump lasers, guarantees on-time warranty and post warranty services and spares supply
Variety of control interfaces: USB, RS232, LAN and WLAN ensures easy control and integration with other equipment
Attenuator and fiber coupling options facilitate incorporation of NT240 systems into various experimental environments

Description & Options

NT240 series lasers produce pulses at an unprecedented 1 kHz pulse repetition rate, tunable over a broad spectral range. Integrated into a single compact housing, the diode pumped Q-switched Nd:YAG laser and OPO offers hands‑free, no-gap tuning from 210 to 2600 nm. With its 1000 Hz repetition rate, the NT240 series laser establishes itself as a versatile tool for many laboratory applications, including laser induced fluorescence, flash photolysis, photobiology, metrology, remote sensing, etc.

NT240 series systems can be controlled from a remote control pad or/and a computer using supplied LabVIEW™ drivers. The control pad allows easy control of all parameters and features on a backlit display that is easy to read even with laser safety eyewear.

Thanks to a DPSS pump source, the laser requires little maintenance. It is equipped with air-cooled built-in chiller, which further reduces running costs. A built‑in OPO pump energy monitor allows monitoring of pump laser performance without the use of external power meters. The optional feature provides a separate output port for the 1064, 532 or 355 nm beam.

ACCESSORIES AND OPTIONAL ITEMS

Option	Features
-SH	Tuning range extension in UV range (210 – 300 nm) by second harmonics generation
-SF	Tuning range extension in 300 – 405 nm range by sum-frequency generation
-SH/-SF	Tuning range extension in 210 – 405 nm range by combining second harmonics and sum-frequency generator outputs for maximum possible pulse energy
-SCU	Spectral filtering accessory for improved spectral purity of pulses
-H, -2H, -3H	1064, 532 and 355 nm output via separate port
-FC	Fiber coupler
-Attn	Attenuator option

Specifications

Model	NT242	NT242-SH	NT242-SF	NT242-SH/SF
OPO ¹⁾
Wavelength range
Signal	405 – 710 nm
Idler	710 – 2600 nm
SH and SF	—	210 – 300 nm	300 – 405 nm	210 – 405 nm
Pulse energy ²⁾
OPO	450 µJ
SH and SF	—	40 µJ at 230 nm	60 µJ at 320 nm
Pulse repetition rate	1000 Hz
Pulse duration ³⁾	3 – 6 ns
Linewidth ⁴⁾	< 5 cm^-1
Tuning resolution ⁵⁾
Signal	1 cm^-1
Idler	1 cm^-1
SH and SF	—	2 cm^-1
Polarization
Signal	horizontal
Idler	vertical
SH and SF	—	vertical
Typical beam diameter ⁶⁾	3 × 6 mm
PUMP LASER
Pump wavelength ⁷⁾	355 nm		355 / 1064 nm
Typical pump pulse energy ⁸⁾	3 mJ		3 / 1 mJ
Pulse duration ³⁾	4 – 6 ns at 1064 nm
PHYSICAL CHARACTERISTICS
Unit size (W × L × H)	456 × 1040 × 297 mm
Power supply size (W × L × H)	520 × 400 × 286 mm
Umbilical length	2.5 m
OPERATING REQUIREMENTS
Cooling	built-in chiller
Room temperature	18 – 27 °C
Relative humidity	20 – 80 % (non-condensing)
Power requirements	100 – 240 V AC, single phase 50/60 Hz
Power consumption	< 1.5 kW
Cleanliness of the room	not worse than ISO Class 9

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.
See tuning curves for typical outputs at other wavelengths.
Measured at FWHM level with photodiode featuring 1 ns rise time and 300 MHz bandwidth oscilloscope.
Linewidth is <8 cm⁻¹ for 210 – 405 nm range.
For manual input from PC. When wavelength is controlled from keypad, tuning resolution is 0.1 nm for signal, 1 nm for idler and 0.05 nm for SH and SF.
Beam diameter is measured at 450 nm at the 1/e² level and can vary depending on the pump pulse energy.
Separate output port for the 3rd and other harmonic are optional.
The pump laser pulse energy will be optimized for best OPO performance. The actual pump laser output can vary with each unit we manufacture.

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.

Performance & Drawings

Typical output pulse energy of NT242 series tunable laser

Typical beam profiles of NT242 series lasers at 500 nm. Near field

Typical beam profiles of NT242 series lasers at 500 nm. Far field

NT242 series laser head dimensions

Publications

Found total :

23 articles, 23 selected

Application selected :

All Applications

Search :

Considerable matrix shift in the electronic transitions of helium-solvated cesium dimer cation Cs₂He⁺_n

High-resolution multimodal photoacoustic microscopy and optical coherence tomography image-guided laser induced branch retinal vein occlusion in living rabbits

Related applications: Biomedical Photoacoustic Imaging

Impact of molecular quadrupole moments on the energy levels at organic heterojunctions

Related applications: Laser Spectroscopy Time-resolved Spectroscopy

High-resolution, high-contrast mid-infrared imaging of fresh biological samples with ultraviolet-localized photoacoustic microscopy

Contrast Agent Enhanced Multimodal Photoacoustic Microscopy and Optical Coherence Tomography for Imaging of Rabbit Choroidal and Retinal Vessels in vivo

Related applications: Biomedical Photoacoustic Imaging

Luminescence spectroscopy of oxazine dye cations isolated in vacuo

Related applications: Photoluminescence Spectroscopy

Electronic spectroscopy and nanocalorimetry of hydrated magnesium ions [Mg(H₂O)_n]+, n = 20–70: spontaneous formation of a hydrated electron?

Related applications: Photolysis

High-resolution, in vivo multimodal photoacoustic microscopy, optical coherence tomography, and fluorescence microscopy imaging of rabbit retinal neovascularization

Related applications: Biomedical Fluorescence Microscopy Photoacoustic Imaging

Photochemistry and spectroscopy of small hydrated magnesium clusters Mg⁺(H₂O)_n, n = 1–5

Related applications: Photolysis

Photodissociation of Sodium Iodide Clusters Doped with Small Hydrocarbons

Related applications: Photolysis

Lipofuscin-mediated photic stress inhibits phagocytic activity of ARPE-19 cells; effect of donors’ age and antioxidants

Potassium Iodide Potentiates Antimicrobial Photodynamic Inactivation Mediated by Rose Bengal in In Vitro and In Vivo Studies

Photoacoustic imaging of voltage responses beyond the optical diffusion limit

Related applications: Biomedical Photoacoustic Imaging

Photodissociation spectroscopy of protonated leucine enkephalin

Related applications: Photolysis

Aerobic photoreactivity of synthetic eumelanins and pheomelanins: generation of singlet oxygen and superoxide anion

A cylindrical quadrupole ion trap in combination with an electrospray ion source for gas-phase luminescence and absorption spectroscopy

Related applications: Absorption Spectroscopy Photoluminescence Spectroscopy

Roles of reactive oxygen species in UVA‐induced oxidation of 5,6‐dihydroxyindole‐2‐carboxylic acid‐melanin as studied by differential spectrophotometric method

Competition between recombination and extraction of free charges determines the fill factor of organic solar cells

Related applications: Time Resolved Photoconductivity

Optogenetic control of insulin secretion by pancreatic β-cells in vitro and in vivo

Related applications: Biomedical

Efficient charge generation by relaxed charge-transfer states at organic interfaces

Related applications: Time Resolved Photoconductivity

Photogeneration and reactions of benzhydryl cations and radicals: A complex sequence of mechanisms from femtoseconds to microseconds

Related applications: Laser Spectroscopy Pump-probe Spectroscopy

The Pan-STARRS1 Photometric System : Photometrical calibration of telescope

Related applications: Metrology

Precise Throughput Determination of the PanSTARRS Telescope and the Gigapixel Imager Using a Calibrated Silicon Photodiode and a Tunable Laser: Initial Results

Related applications: Metrology

Ordering information

NT242 series tunable wavelength lasers ordering information

NT240 series

Features & Applications

FEATURES

APPLICATIONS

BENEFITS

Description & Options

ACCESSORIES AND OPTIONAL ITEMS

Specifications

Performance & Drawings

Publications

Considerable matrix shift in the electronic transitions of helium-solvated cesium dimer cation Cs2He+n

High-resolution multimodal photoacoustic microscopy and optical coherence tomography image-guided laser induced branch retinal vein occlusion in living rabbits

Impact of molecular quadrupole moments on the energy levels at organic heterojunctions

High-resolution, high-contrast mid-infrared imaging of fresh biological samples with ultraviolet-localized photoacoustic microscopy

Contrast Agent Enhanced Multimodal Photoacoustic Microscopy and Optical Coherence Tomography for Imaging of Rabbit Choroidal and Retinal Vessels in vivo

Luminescence spectroscopy of oxazine dye cations isolated in vacuo

Electronic spectroscopy and nanocalorimetry of hydrated magnesium ions [Mg(H2O)n]+, n = 20–70: spontaneous formation of a hydrated electron?

High-resolution, in vivo multimodal photoacoustic microscopy, optical coherence tomography, and fluorescence microscopy imaging of rabbit retinal neovascularization

Photochemistry and spectroscopy of small hydrated magnesium clusters Mg+(H2O)n, n = 1–5

Photodissociation of Sodium Iodide Clusters Doped with Small Hydrocarbons

Lipofuscin-mediated photic stress inhibits phagocytic activity of ARPE-19 cells; effect of donors’ age and antioxidants

Potassium Iodide Potentiates Antimicrobial Photodynamic Inactivation Mediated by Rose Bengal in In Vitro and In Vivo Studies

Photoacoustic imaging of voltage responses beyond the optical diffusion limit

Photodissociation spectroscopy of protonated leucine enkephalin

Aerobic photoreactivity of synthetic eumelanins and pheomelanins: generation of singlet oxygen and superoxide anion

A cylindrical quadrupole ion trap in combination with an electrospray ion source for gas-phase luminescence and absorption spectroscopy

Roles of reactive oxygen species in UVA‐induced oxidation of 5,6‐dihydroxyindole‐2‐carboxylic acid‐melanin as studied by differential spectrophotometric method

Competition between recombination and extraction of free charges determines the fill factor of organic solar cells

Optogenetic control of insulin secretion by pancreatic β-cells in vitro and in vivo

Efficient charge generation by relaxed charge-transfer states at organic interfaces

Photogeneration and reactions of benzhydryl cations and radicals: A complex sequence of mechanisms from femtoseconds to microseconds

The Pan-STARRS1 Photometric System : Photometrical calibration of telescope

Precise Throughput Determination of the PanSTARRS Telescope and the Gigapixel Imager Using a Calibrated Silicon Photodiode and a Tunable Laser: Initial Results

Ordering information

Considerable matrix shift in the electronic transitions of helium-solvated cesium dimer cation Cs₂He⁺_n

Electronic spectroscopy and nanocalorimetry of hydrated magnesium ions [Mg(H₂O)_n]+, n = 20–70: spontaneous formation of a hydrated electron?

Photochemistry and spectroscopy of small hydrated magnesium clusters Mg⁺(H₂O)_n, n = 1–5