Prism award nominee

NT260 ▪ NT230 ▪ NT240 ▪ NT250 ▪ NT270 ▪ NT340

NT240 series

Broadly Tunable
kHz Pulsed
DPSS Lasers
F E AT U R E S

Nanosecond
Nanosecond Tunable Wavelength
Wavelength Lasers
LasersNANOSECOND TUNABLE WAVELENGTH L ASERS▶ Customers recognized reliability▶ Integrates DPSS pump laser andOPO into a single housing▶ Hands-free no-gap wavelengthtuning from 210 to 2600 nm*▶ 1000 Hz pulse repetition rate

▶ More than 60 µJ output pulse

Nanosecond Lasers▶ Two years warrantyenergy in UV▶ Less than 5 cm⁻¹ linewidth▶ 3 – 6 ns pulse duration

BENEFITS▶ Hands-free wavelength tuning –no need for physical intervention▶ High repetition rate 1000 Hz

enables fast data collection▶ End pumping with diodetechnology 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 highquality spectra▶ High integration level saves

valuable space in the laboratory▶ In-house design and manufacturingof complete systems, including pumplasers, guarantees on-time warranty
and post warranty services andspares supply▶ Remote control via key pad or PC▶ Optional separate output for theOPO pump beam 355 nm, 532 nm
or 1064 nm* Automatic wavelength scan is optional▶ Variety of control interfaces: USB,

RS232, LAN and WLAN ensures easy
control and integration with otherequipment▶ Attenuator and fiber coupling

options facilitate incorporationof NT240 systems into various
experimental environments

A P P L I C AT I O N S▶ Laser-induced fluorescence

spectroscopy▶ Pump-probe spectroscopy▶ Non-linear spectroscopy▶ Time-resolved spectroscopy

NT240 series lasers produce pulses
at an unprecedented 1 kHz pulse
repetition rate, tunable over a broad
spectral range. Integrated into asingle compact housing, the diodepumped Q-switched Nd:YAG laser and
OPO offers hands‑free, no-gap tuningfrom 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.

REV. 240116

NT240 series systems can becontrolled from a remote control pad
or/and a computer using supplied
LabVIEW™ drivers. The control pad
allows easy control of all parametersand features on a backlit display thatis easy to read even with laser safety
eyewear.
Thanks to a DPSS pump source, thelaser requires little maintenance. It
is equipped with air-cooled built-inchiller, which further reduces runningcosts. A built‑in OPO pump energy
monitor allows monitoring of pump

▶ Photobiology▶ Remote sensing▶ Determination of the telescopethroughput

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.

SAVANORIU AV. 237, LT-02300 VILNIUS, LITHUANIA TEL +370 5 2649629 E-MAIL SALES@EKSPL A.COM WWW.EKSPL A.COM

11NT240 series

NANOSECOND TUNABLE WAVELENGTH L ASERS
Nanosecond
Nanosecond Tunable Wavelength
Wavelength Lasers
LasersS P E C I F I C AT I O N S 1)
Model

NT242

NT242-SH

NT242-SH/SF

OPO

Wavelength range
Signal

405 – 710 nm

Idler

SH and SF

Pulse energy

710 – 2600 nm—210 – 300 nm

300 – 405 nm—40 μJ at 230 nm

OPO

Pulse repetition rate
Pulse duration 3)

450 μJ3 – 6 ns

Nanosecond Lasers< 5 cm⁻¹Signal

1 cm⁻¹Minimal tuning step  5)
Idler

SH and SF

1 cm⁻¹—Polarization
SignalSH and SF

PUMP LASERPump wavelength 7)

3 mJ3)PHYSICAL CHARACTERISTICS

Unit size (W × L × H)

355 / 1064 nm
4 – 6 ns at 1064 nm

3 / 1 mJ

520 × 400 × 286 mm

Umbilical length

2.5 m

OPERATING REQUIREMENTS

Coolingbuilt-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 room5)

vertical

456 × 1040 × 297 mm

Power supply size (W × L × H)

4)

3 × 6 mm
355 nmTypical pump pulse energy 8)3)vertical—Typical beam diameter 6)2)2 cm⁻¹horizontal

Idler

Pulse duration

60 μJ at 320 nm

1000 HzLinewidth  4)

1)

210 – 405 nm

2)

SH and SF

12NT242-SF

not worse than ISO Class 9

Due to continuous improvement, allspecifications are subject to change.
Parameters marked typical are illustrative;
they are indications of typical performanceand will vary with each unit we manufacture.
Unless stated otherwise, all specifications aremeasured at 450 nm and for basic system
without options.

See tuning curves for typical outputs at otherwavelengths.

6)

7)

8)

Beam diameter is measured at 450 nm at
the 1/e2 level and can vary depending on thepump pulse energy.
Separate output port for the 3rd and otherharmonic is optional.

The pump laser pulse energy will be optimized
for best OPO performance. The actual pumplaser output can vary with each unit wemanufacture.

DANGERVISIBLE AND/OR INVISIBLE LASER RADIATIONAVOID EYE OR SKIN EXPOSURE TO DIRECTREFLECTED OR SCATTERED RADIATION
Tunable, 210 – 2600 nm
Max. 450 µJ, pulse 3 – 6 ns
CLASS IV LASER PRODUCTMeasured at FWHM level with photodiodefeaturing 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 is0.1 nm for signal, 1 nm for idler and 0.05 nm
for SH and SF.

SAVANORIU AV. 237, LT-02300 VILNIUS, LITHUANIA TEL +370 5 2649629 E-MAIL SALES@EKSPL A.COM WWW.EKSPL A.COM   REV. 240116

Accessories and optional items
OptionFeatures-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

Tuning range extension in UV range (210 – 300 nm) by second harmonic generation

Nanosecond Lasers-SH

Nanosecond
Nanosecond Tunable Wavelength
Wavelength Lasers
LasersNT240 series

NANOSECOND TUNABLE WAVELENGTH L ASERSPERFORMANCE

Near field

Far field

Fig 1. Typical beam profiles of NT242 series lasers at 500 nm

600

Pulse energy, µJ

500
400

50.0

25.0

Wavenumber, 10³ × cm⁻¹
16.6
10.0
5.0

3.3SH/SF
SignalIdler

3002001000

REV. 240116

200 300 400 500 600 700 1000 1500 2000 2500 3000
Wavelength, nmFig 2. Typical output pulse energyof NT242 series tunable laser

SAVANORIU AV. 237, LT-02300 VILNIUS, LITHUANIA TEL +370 5 2649629 E-MAIL SALES@EKSPL A.COM WWW.EKSPL A.COM

13NT240 series

NANOSECOND TUNABLE WAVELENGTH L ASERS

Umbilical cord to power supply

NT242551

Fiber cable

297±5.0

1074

213

223

405
401
290
245
200
111

1040

200150Umbilical cord
to power supply

456

Minimal curvatureradius of umbilical
150 mmNanosecond Lasers

Fiber cable
Minimal curvatureradius of fiber cable 200 mm

170±5.0160±5.0

Nanosecond
Nanosecond Tunable Wavelength
Wavelength Lasers
LasersO U T L I N E D R AW I N G S

PORT5 PORT4 PORT3

PORT2 PORT1Fig 3. NT242 series laser head dimensions

O R D E R I N G I N F O R M AT I O N
Note: Laser must beconnected 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 afew hours before switching on.

NT242-SH-H-2H-SCU
Model
Optional tuning rangeextension:
SH→ 210 – 300 nm
SF→ 300 – 405 nm
SH/SF → 210 – 405 nm

Options:
H→ extra 1064 nm output
2H → extra 532 nm output
SCU → spectral filtering accessory

www.phototechnica.co.jp〒336-0017 埼玉県さいたま市南区南浦和 1-2-17

TEL:048-871-0067 FAX:048-871-0068

e-mail:voc@phototechnica.co.jp

14

SAVANORIU AV. 237, LT-02300 VILNIUS, LITHUANIA TEL +370 5 2649629 E-MAIL SALES@EKSPL A.COM WWW.EKSPL A.COM   REV. 240116