Nanosecond
Nanosecond Tunable Wavelength
Wavelength Lasers
LasersNANOSECOND TUNABLE WAVELENGTH L ASERS
NT260 ▪ NT230 ▪ NT240 ▪ NT250 ▪ NT270 ▪ NT340

NT230 seriesHigh Energy
Broadly Tunable
DPSS Lasers
F E AT U R E S▶ Customers recognized reliability▶ Two years warranty▶ Integrates DPSS pump laser andNanosecond Lasers

OPO into a single housing▶ Hands-free no-gap wavelengthtuning from 192 to 2600 nm*▶ Up to 15 mJ pulse energy from OPO▶ Up to 100 Hz pulse repetition rate
▶ Up to 2 mJ output pulse energyin UVBENEFITS▶ Hands-free wavelength tuning –▶ Automatic electromechanical output▶ The system is widely tunable;▶ User friendly extendable

no need for physical intervention
192 – 2600 nm and delivers highpulse energy (up to 15 mJ) whichallows investigation of an extensive
range of materials▶ High repetition rate (up to 100 Hz)

and output power enable fast datacollection and intensive excitationof materials▶ 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▶ Diode pumping reduces

shutters ensure high level of safety
handles ease transportation andrepositioning of laser▶ In-house design and manufacturingof complete systems, including pumplasers, guarantees on-time warranty
and post warranty services andspares supply▶ Less than 5 cm⁻¹ linewidth▶ 2 – 5 ns pulse duration▶ Electromechanical output shutters▶ Transportation handles▶ 355 nm & 1064 nm laser outputs▶ 532 nm output (optional)▶ Remote control via key pad or PC* 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 NT230 systems into various
experimental environments

maintenance frequency

A P P L I C AT I O N S▶ Laser-induced fluorescence▶ Flash photolysis▶ Photobiology▶ Remote sensing▶ Metrology▶ Non-linear spectroscopy

NT230 series lasers deliver high up
to 10 mJ energy pulses at 100 Hz
pulse repetition rate, tunable over abroad spectral range. Integrated intoa single compact housing, the diodepumped Q-switched Nd:YAG laser andOptical Paramteric Oscillator (OPO)
offers hands free, no-gap tuningfrom 192 to 2600 nm. With its 100 Hz
repetition rate, the NT230 series laser
establishes itself as a versatile tool for

REV. 240116

many laboratory applications, as laser
induced fluorescence, flash photolysis,photobiology, metrology, remotesensing, etc.
Due to the innovative diodepumped design, NT230 series lasers
feature maintenance-free laser
operation for an extended periodof time and improved stability(compared with flash-lamp pumpedcounterparts).

▶ Photo acoustic imaging

NT230 series systems can becontrolled from a remote control pador/and a computer. The control padallows easy control of all parametersand features on a backlit system
display that is easy to read even withlaser safety eyewear.

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

7

NT230 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

NT230-50

NT230-100

OPO

Wavelength range
Signal

405 – 710 nm

Idler

710 – 2600 nm

SH and SF

210 – 405 nm 2)

DUV

192 – 210 nm

Pulse energy 3)
OPO

15 mJ

SH and SF 4)

10 mJ

1.8 mJ

DUV

1.3 mJ

0.4 mJ

Nanosecond Lasers

Pulse repetition rate

0.27 mJ

50 Hz

Pulse duration 5)

2 – 5 ns

Linewidth 6)

Minimal tuning step

<5 cm⁻¹7)Signal1 cm⁻¹SH / SF / DUV

2 cm⁻¹Idler

1 cm⁻¹

Polarization
Signalhorizontal

SH / SF

horizontal

Idler

vertical

DUV

vertical<2 mrad

OPO beam divergence 8)

Typical beam diameter 9)

5 mm

PUMP LASERPump wavelength 10)

Typical pump pulse energy 11)
Pulse duration

355 nm

50 mJ

2 – 5 ns6)

PHYSICAL CHARACTERISTICS

Unit size (W × L × H)

449 × 376 × 140 mm

External chiller

inquireUmbilical length

2.5 m

OPERATING REQUIREMENTS

Coolingexternal chiller

Room temperature

18 – 30 °C

Relative humidity

20 – 80 % (non-condensing)Power requirements

100 – 240 V AC, single phase, 50/60 Hz

Power consumption<1.8 kW

Cleanliness of the room2)
3)

4)5)

8

not worse than ISO Class 9

Due to continuous improvement, all specifica­
tions are subject to change. Parameters marked
typical are illustrative. They are indications oftypical performance and will vary with each unit
we manufacture. Unless stated otherwise, allspecifications are measured at 450 nm and forbasic system without options.

Separate –SH and –SF options are available.

See tuning curves for typical outputs at otherwavelengths.
Measured at 260 nm wavelength.

35 mJ

451 × 705 × 172 mm

Power supply size (W × L × H)

1)

100 Hz

FWHM measured with photodiode featuring 1 ns
rise time and 300 MHz bandwidth oscilloscope.

6)
7)

8)

9)

10)

Linewidth is <8 cm⁻¹ for 210 – 405 nm range.

DANGER

When wavelength is controlled from PC. Whenwavelength is controlled from keypad, tuning
resolution is 0.1 nm for signal, 1 nm for idler
and 0.05 nm for SH, SF and DUV.

VISIBLE AND/OR INVISIBLE LASER RADIATIONAVOID EYE OR SKIN EXPOSURE TO DIRECTREFLECTED OR SCATTERED RADIATION

Full angle measured at the FWHM level at450 nm.

Tunable, 192 – 2600 nm
Max. 15 mJ, pulse 2 – 5 nsCLASS IV LASER PRODUCTBeam diameter is measured at 450 nm at the1/e2 level and can vary depending on thepump pulse energy.

Separate output port for the fundamental and3rd harmonic beam is standard. Output ports
for other harmonic are optional.

11)

The pump laser pulse energy will be optimized
for best OPO performance and can vary witheach unit we manufacture.

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

Nanosecond
Nanosecond Tunable Wavelength
Wavelength Lasers
LasersNT230 series

NANOSECOND TUNABLE WAVELENGTH L ASERS

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 harmonic and sum-frequency generator
outputs for maximum possible pulse energy-DUV

Deep UV option for 192 – 210 nm range output-2H

532 nm output-FC

Fiber coupled output in 300 – 2000 nm range-ATTN

Attenuator-SCU

Spectral filtering accessory for improved spectral purity of pulses-FWS

Fast wavelength scanning option

Tuning range extension in UV range (210 – 405 nm) by second harmonic generation

Nanosecond Lasers-SH

PERFORMANCE

Near field

Far field

Fig 1. Typical beam profiles of NT230 series lasers at 450 nm

1625.0

20.0

5.0

4.0

128642400500

600700 1000 1500 2000 2500
Wavelength, nm

52

Wavenumber, 10³ × cm⁻¹515049

Wavenumber, 10³ × cm⁻¹
35.7
31.3
27.8

25.0

2.0
1.8
1.6
1.4
1.2
1.0
0.8

NT230-50
NT230-100

0.6Fig 2. Typical output pulse energy ofNT230 laser

0.45

41.6

2.2

Pulse energy, mJ

10050.0NT230-50
NT230-100

14Pulse energy, mJ

Wavenumber, 10³ × cm⁻¹
16.7
14.3 10.0 6.7

0.4

200240280
320
Wavelength, nm

360400Fig 3. Typical output pulse energy ofNT230 laser with SH/SF extension

480.40

Pulse energy, mJ

0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00

NT230-50
NT230-100
192 194 196 198 200 202 204 206 208 210
Wavelength, nm

Fig 4. Typical output pulse energy ofNT230 laser with DUV extension

REV. 240116

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

9NT230 series

NANOSECOND TUNABLE WAVELENGTH L ASERS
400308

704.5
173

39640

172

254

110

200

6,5

Nanosecond Lasers

Fig 5. NT230
series laser head
dimensions(without options)

425

400

451

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

955012,5Fig 6. For easier transportation
laser features integrated carryinghandles, which can be hiddeninside, when not in needO R D E R I N G I N F O R M AT I O N

NT230-50-SH-2H-SCU

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 a
few hours before switching on.

ModelPulse repetition
rate in Hz

Options:
2H → extra 532 nm output
SCU → spectral filtering accessory
Optional tuning range extension:
SH→ 210 – 405 nm
SF→ 300 – 405 nm
SH/SF → 210 – 405 nm
DUV→ 192 – 210 nm

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

10

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