Pulsed Terahertz Spectrometer PTS-1
Applications of the PTS-1:• Determining material properties in THz range (transmission, reflection,absorption, refractive index, complex permittivity);• Monitoring superfast processes in semiconductors;• Superfast switching of semiconductor devices;• Determining the free carrier concentration in doped or opticallyexcited semiconductors.
PTS-1 package includes:• Solid-state femtosecond laser;• Electro-Optical Detector of pulsed THz radiation;
Tydex Pulsed Terahertz Spectrometer (PTS-1) is an integrated solution
for broadband THz time-domain spectroscopy. It is ideal for scientificresearch applications due to its radiation propagating through free spaceand flexible optical scheme.
Similar to other broadband THz time-domain spectroscopy systems, thepumping source for THz radiation generator is a femtosecond laser (1048
nm wavelength, ~100 fs pulse duration, 60 MHz pulse repetition rate).
PTS-1 utilizes optical rectification of femtosecond pulses to generate
THz radiation. The femtosecond laser radiation is transmitted to THz
radiation generator which is a crystal of magnesium-oxide-doped lithium
niobate (MgO:LiNbO3) plate with a HRFZ Si prism. The generated pulses
propagate through free space and are detected by electro-optical means
with an Electro-Optical Detector (EOD) manufactured by Tydex.

• All optomechanical components, both for optical and THz path;• Delay line;• Electronic control units for the optical delay line, optomechanicalmodulator and laser;• PC with pre-installed TydexLN software.
Software functions:• Delay line control;• Receiving data from EOD;
• Data processing;• Data export and import.
Operating modes of the PTS-1:• Transmission, AOI = 0°;• Reflection, AOI = 0°;• Reflection, AOI = 45° (optional);• Parallel beam measurements (optional).
Key specifications:Fig. 1. Principal diagram of PTS-1.

THz radiation generation and detection is effected as follows: laser
radiation is delivered by a system of mirrors to the beamsplitter, where
it is divided into a pumping beam and a signal beam.
The pumping beam is focused into the generating structure. THz
radiation output from the generating structure is directed to the cell
containing the sample under study. After passing through the cell, theTHz radiation is focused into electro-optical crystal of EOD.
The signal beam passes through an optical delay line, then is focused
into the same EOD crystal by the system of mirrors. The EOD signal (theTDS systems directly measure the electric field of THz pulse) is received
by the software that also controls the delay line. The software includes amathematical apparatus that transforms the EOD signal into a frequency
spectrum.
Key features of the PTS-1:• High output power – no less than 200 μW;• Flexible system;• Feature-rich software.

16 Domostroitelnaya str.
194292 St. Petersburg, Russia
www.tydex.ru

Phone: 7-812-3318702
Fax: 7-812-3092958
E-mail: optics@tydex.ru

Spectral range

0.1-2.5 THz

Dynamic range≥ 60 dB

Average output power (THz radiation)≥ 200 μW

Delay time

330 psSpectral resolution

5 GHzSource:Type of THz radiation source

MgO:LiNbO3

Center pumping wavelength1048 nmPumping laser pulse duration

120 fs

Detector:
Detector type

Near IR EOD

EO crystalZnTe

Pulsed Terahertz Spectrometr PTS-1

Fig. 2. The waveform of the pulse.

Fig. 3. Frequency spectrum.

For price quotation and delivery please fill in the request form on ourwebsite.

16 Domostroitelnaya str.
194292 St. Petersburg, Russia
www.tydex.ru

Phone: 7-812-3318702
Fax: 7-812-3092958
E-mail: optics@tydex.ru