Welcome to Sintec Optronics

        

         New Products  

          Terahertz instruments

 

STRP-TeraSys - AiO

 

The STRP-TeraSys- AiO provides a flexible solution for laboratory THz spectroscopy and imaging. It offers maximum flexibility with measurement capabilities in transmission and reflection without realignment of the optics. It is based on organic crystals, to allow access to terahertz frequencies not available with conventional antennas. The STRP-TeraSys- AiO includes all optical, mechanical and electronic components for the generation and detection of THz waves such as delay line, terahertz generator, terahertz detector, pump source optics, electronics, humidity sensor, purge chamber, dedicated software, and laptop.

STRP-TeraSys - AiO (55 cm x 45 cm x 28 cm)

 

 

 

Specifications

STRP-TeraSys - AiO

Transmission

Reflection

Spectral range

0.3 - 14 THz

0.3 - 8 THz

Dynamic range

> 70 dB

> 40 dB

Signal to Noise (@4 THz)

> 60 dB

> 35 dB

Scan range

up to 60 ps

up to 60 ps

Frequency resolution

< 100 GHz

< 100 GHz

Dimensions (including the pump source)

55 cm x 45 cm x 28 cm

 

Pump Source (high power ultrafast Erbium fiber laser)

   

Pulse length

< 20 fs

 

Total average power

> 200 mW

 

Peak power

>120 kW

 

Central wavelength

1565 nm

 

Repetition rate

80 MHz

 

Options

THz imaging with a scanning range of 50 x 50 mm2 for transmission for reflection operation.

Frequency domain spectrum measured with the STRP-TeraSys - AiO using DSTMS as terahertz generator/detector in transmission and reflection. 

Applications

Spectroscopy and analysis of materials in the THz range up to 20 THz.

 

STRP-TeraIMAGE

The flexible solution for THz spectroscopy and imaging

The STRP-TeraIMAGE offers a flexible solution for laboratory THz spectroscopy and imaging. It is based on organic crystals, to allow access to THz frequencies not yet available with conventional antennas. The STRP-TeraIMAGE includes all optical, mechanical and electronic components for the generation and detection of THz waves such as delay line, THz generator, detector, optics, electronics, dedicated software and laptop. It also features a scanning mechanism for the measurement of phase and full-spectrum images. As the STRP-TeraKit, it can also be used with various telecom wavelength lasers.

STRP-TeralMAGE optical board (Scanning range: 50x50 mm2)

Specifications

 

THz generator / detector

Organic crystal

Spectral range

1-14 THz

Best phase matchable wavelength

1300-1600 nm

Options

Scanning range of 100x100 mm2

Applications

Spectroscopy and imaging of various materials. Ideal for identification and detection of dangerous substances and biomedical materials, as well as for materials testing of plastic, special polymers and semiconductors. The scan area is 5 x 5 cm2. We also offer systems that allow imaging of larger areas.

STRP-TeraTune

The STRP-TeraTune provides a tunable narrowband terahertz source with a tuning range from 1.5 to 20 THz and a bandwidth of less than 100 GHz. The basic STRP-TeraTune is based on a flash lamp pumped laser (repetition rate 50 Hz to 200 Hz) with a special optical parametric oscillator (OPO) where one wavelength is tuned electronically with a special design to keep the bandwidth below 100 GHz. Other diode pumped laser systems can be offered. The variable wavelength is calibrated and the THz difference frequency is computer controlled (tuning range 1 to 20 THz). Terahertz radiation is generated via frequency mixing in the novel organic nonlinear optical crystal STRP-DSTMS, ideally suited to achieve highest terahertz conversion efficiency.

The STRP-TeraTune includes all optical, mechanical, electronic components for the generation of THz waves and software control.

STRP-TeraTune (pump laser, OPO: optical parametric oscillator and THz difference frequency generator,

dimensions: 900 x 500 x 180 mm), laser power supply (300 x 450 x 450 mm)

Specifications

  • THz frequency tunable 1−20 THz
  • Output THz pulse bandwidth < 100 GHz
  • Average THz power 1−10 μW
  • THz pulse energy 10−100 nJ
  • Linear polarization

Phase matched THz difference
frequency generation in DSTMS

 

Tunable frequency

 

Output frequency

1 - 20 THz

Pulse bandwidth

< 100 GHz

Repetition rate

100 Hz

Average power

1-10 pW

Pulse energy

10-100 nJ

Polarization

linear

OPO: Optical Parametric Oscillator

 

Tuning range

1330-1480 nm

Linewidth

< 100 GHz

Repetition rate

100 Hz

Pulse duration

7- 10 ns

Energy per pulse

> 10 mJ

Peak Power

> 1.4 MW

Nd:YAG Pump laser 100-Hz

 

Pulse width

10 ns

Pulse energy

> 125 mJ @ 532nm

Divergence

0.5 mrad

Beam quality

M2 < 2

Energy stability

< 1%

Beam diameter

5 mm

Linewidth

90 MHz

Power consumption

< 2.5 kW

 

 

STRP-TeraSys 4000

THz System for THz Spectroscopy, Detection and Inspection of Materials

STRP-TeraSys 4000 Is a Terahertz spectrometer that operates in the frequency range of 0.3 - 4 THz and has a spectral resolution < 0.01 THz. This turn-key operation system is all solid state, compact and maintenance free. It includes a software package and database for the detection and identification of dangerous materials. It is ideal for applications in spectroscopy, production technology and security. 

Specification (1)

Frequency range

0.3 - 4 THz

Output power

> 50 nW

Spectral resolution

< 0.01 THz

Polarisation, linear

> 100: 1, vertical

Input voltage

110V/ 240V, 50 or 60 Hz

Power consumption

< 60 W

Warm-up time

15 min.

Operating ambient temperature

18°C - 30°C

Dimensions

40x25x18 cm3

 

Applications

  • Security

Explosives detection

Bio agents

Mail inspection

  • Materials inspection

Defects in plastics, artificial joints

Organic materials

  • Spectrography

Identification of pharmaceuticals, drugs etc.

Features

  • Turn key operation

  • All solid state

  • Maintenance free

  • Software package and database for the identification of dangerous materials

1 Specifications are subject to change without notice

STRP-TeraSys 4000 optical set-up

STRP-TeraSys 4000 frequency response. Other frequency responses are available upon request

 

STRP-TeraKit

The STRP-TeraKit provides a flexible solution for laboratory terahertz spectroscopy. It is based on organic crystals, to allow access to terahertz frequencies by optical down conversion yielding THz frequencies and efficiencies not available with conventional antennas. The STRP-TeraKit includes all optical, mechanical, and electronic components for the generation and detection of THz waves such as delay line, terahertz generator, terahertz detector, optics, electronics, lock-in, custom made Er based femtosecond fiber laser, dedicated software and laptop.

STRP-TeraKit optical board (38 cm x 38 cm)

Terahertz spectral bandwidth as a function of the pump pulse length and frequency domain spectrum measured in dry air with the STRP-TeraKit using DSTMS as terahertz generator and detector.

Specifications

THz generator / detector

Organic crystal

Spectral range

1-14 THz

Best phase matchable wavelength

1300-1600 nm

Dynamic range

> 60 dB, (@4THz)

Scan range

up to 60 ps

Frequency resolution

< 100 GHz

Dimensions

30 x 38 x 17 cm

Pump source (Er based femtosecond laser)

 

Pulse length

< 20 fs

Total average power

> 200 mW

Peak power

> 120 kW

Central wavelength

1565 nm

Repetition rate

> 80 MHz

Options

THz imaging with a scanning range of 50x50 mm2 or 100x100mm2

Applications

Spectroscopy and analysis of materials in the THz range up to 20 THz (depending on the pump laser).

Other spectral ranges are available upon request.

 

Terahertz Generators and Detectors: 

STRP-OH1 Crystals: (2-(3-(4-Hydroxystyryl)-5, 5-Dimethylcyclohex-2-Enylidene)Malononitrile)

THz generators/detectors are based on various organic crystals: DAST, DSTMS and OH1. They are optimized for operation at Terahertz frequencies from 0.3 - 20 THz. The organic electro-optical crystals (DAST, DSTMS, OH1) have high electro-optic coefficients and show ultra-fast electro-optical response for modulation frequencies up to 200 GHz. These crystals can also be used for electro-optic detection. 

Example of an as-grown STRP-OH1 crystal and organic crystals polished, coated and mounted for optical applications. STRP-OH1 and other high-quality organic crystals are produced and optically prepared in the facilities of Rainbow Photonics in Switzerland.

Properties

  • High quality crystals
  • Cut and polished for various applications
  • Large nonlinear optical susceptibilities
  • Large electro-optic coefficients
  • Phase matching for THz-wave generation between 1200 nm and 1460 nm

Features

  • High quality crystals
  • Cut and polished for various applications
  • Large nonlinear optical susceptibilities
  • Phase matching for THz generation between 1200 nm and 1460 nm

Applications

  • Efficient THz generation and detection from 0.1 to >10 THz
  • Fast electro-optic modulation
  • Optical parametric generation
  • Efficient frequency doubling of 1.55 μm radiation

Physical Properties

Melting point

212 °C

Point group symmetry

mm2

Refractive indices

n2 = 1.58,   n3 = 2.15

Nonlinear coefficients (A=1.9 ^m)

d333           =          120 ± 10 pm/V

d          =         13 ± 2 pm/V

d322        =          8.5 ± 2 pm/V

Electro optic coefficients

r333 (633nm)       =      109 ± 4pm/V

r333 (785 nm)     =       75 ± 7 pm/V

r333 (1064nm)    =       56 ± 2 pm/V

r333 (1319nm)    =       52 ± 7 pm/V

1)  “Configurationally locked, phenolic polyene organic crystal 0H1: linear and nonlinear optical properties”;

C. Hunziker, S. Kwon, H. Figi, F. Juvalta, 0. Kwon, M. Jazbinsek, P. Gunter, J. Opt. Soc. Am. B 5, 1678 (2008).

2)  “A hydrogen-bonded organic nonlinear optical crystal for high-efficiency terahertz generation and detection”; F. Brunner, 0. Kwon, S. Kwon, M. Jazbinsek, A. Schneider, P. Gunter, Opt. Express 16, 16496 (2008).

3)  “Organic phenolic configurationally locked polyene single crystals for electro-optic and terahertz wave applications"; 0. Kwon, S. Kwon, M. Jazbinsek, F. Brunner, J. Seo, C. Hunziker, A. Schneider, H. Yun, Y. Lee, P. Gunter, Adv. Funct. Mater. 18, 3242 (2008).

4)  “Scaling submillimeter single-cycle transients toward megavolts per centimeter field strength via optical rectification in the organic crystal OH1"; C. Ruchert, C. Vicario, C.P. Hauri, Opt. Lett. 37, 899 (2012).

 

STRP-KNbO3 Crystals

Standard Features

  • High quality nominally undoped crystals for electro-optics and nonlinear optics
  • High quality crystals doped with Rh, Fe, Mn, and Ni for photorefractive applications in the visible and infrared
  • Very low scattering losses

Optional Features

  • High photosensitivity up to 1000 nm wavelength
  • Milliseconds response time

Applications

  • Electro-optics and nonlinear optics
  • Photorefractive applications with laser diodes

Dynamic holography and optical phase conjugation in the visible and near infrared

Photorefractive Grating Recording Times

(Selected STRP- KNbO3 crystals at different wavelengths for l = 1 W/cm2)

 

Wavelength [nm]

Recording time (typical) [s]

STRP-KNbO3:Fe

488

1

STRP-KNbO3:Mn

515

1

860

3

 

STRP-KNbO3:Fe reduced

488

0.01

515

0.01

 

STRP-KNbO3:Rh reduced

860

0.5

1064

50

 

Absorption Spectra

 

  Scanning Spectrophotometer

Sintec Optronics Pte Ltd

10 Bukit Batok Crescent #07-02 The Spire Singapore 658079

Tel: +65 63167112 Fax: +65 63167113  

E-mail: sales@sintec.sg sales@SintecOptronics.com

URL: http://www.sintec.sghttp://www.SintecOptronics.com

For more and updated information, please go to our New Websites.