Del Mar Photonics

 

THz transmission setup with different stages of completeness

Pos.

Quantity

Description

 

1

1 piece

THz transmission setup for 780 nm femtosecond laser, consisting of:

?span style="font:7.0pt "Times New Roman"">         THz emitter and detector photoconductive antennas, including aspheric optical focusing lenses for optical laser beam and hyperhemispherical silicon substrate lenses for THz beam

?span style="font:7.0pt "Times New Roman"">         4 parabolic mirrors with 50 mm diameter and 50 mm focus length

?span style="font:7.0pt "Times New Roman"">         breadboard 600 mm x 450 mm x 50.8 mm with the adjusted and tested THz antennas and mirrors

?span style="font:7.0pt "Times New Roman"">         description of the setup with test report and with marked positions on the breadboard for the needed additional optical parts

 

request a quote

2

1 piece

THz transmission setup for 780 nm femtosecond laser, consisting of:

?span style="font:7.0pt "Times New Roman"">         THz emitter and detector photoconductive antennas, including aspheric optical focussing lenses for optical laser beam and aspheric focusing silicon substrate lenses for THz beam with 50 mm focus length. The performance of this setup is the same as in Pos. 1

?span style="font:7.0pt "Times New Roman"">         breadboard 600 mm x 450 mm x 50.8 mm with the adjusted and tested THz antennas. The THz antenna distance is 100 mm. The THz focus is in on the midpoint between the antennas

?span style="font:7.0pt "Times New Roman"">         description of the setup with test report and with marked positions on the breadboard for the needed additional optical parts

 

request a quote

3

1 piece

Complete optical THz transmission time-domain spectrometer setup for 780 nm femtosecond laser, consisting of:

?span style="font:7.0pt "Times New Roman"">         THz emitter and detector photoconductive antennas, including aspheric optical focussing lenses for optical laser beam and aspheric focusing silicon substrate lenses for THz beam with 50 mm focus length

?span style="font:7.0pt "Times New Roman"">         optical delay line with 150 mm displacement for delay of 1 ps

?span style="font:7.0pt "Times New Roman"">         Beam splitter for fs-laser and 4 mirrors for optical alignment of the complete THz setup

?span style="font:7.0pt "Times New Roman"">         breadboard 600 mm x 450 mm x 50.8 mm with the adjusted and tested optical elements for the complete THz spectrometer. The THz antenna distance is 100 mm. The THz focus is on the midpoint between the antennas

?span style="font:7.0pt "Times New Roman"">         description of the THz setup with test report

request a quote

4

1 piece

Complete THz transmission time-domain spectrometer for 780 nm femtosecond laser, consisting of:

?span style="font:7.0pt "Times New Roman"">         Complete THz transmission setup as described in Pos. 3

?span style="font:7.0pt "Times New Roman"">         Pulse generator as power supply for the emitter, preamplifier, which is integrated in the detector, and lock-in amplifier. The supply voltage for these electronic devices is 115 .. 230 V.

?span style="font:7.0pt "Times New Roman"">         Computer with spectrometer software for time-domain THz spectroscopy. The software allows measurement of THz pulse and calculates in-situ the THz spectrum. It includes the calibration procedures for 100 % transmittance and the calculation of the spectral transmittance and absorbance of a sample.

?span style="font:7.0pt "Times New Roman"">         Instruction manual for the THz spectrometer and test report

request a quote

 

Data sheet for THz transmission spectrometer
with 780 nm fs laser with pulse duration < 120 fs and mean optical output power > 50 mW
mean THz power PTHz ~ 5 礧
THz signal/noise amplitude 104
useful spectral region 0.05 ?2.5 THz
THz focus position 50 mm away from the antennas
Fast scan duration 10 s
Slow scan duration 8 min (resolution
Δν = 2.5 GHz, 200 ps scan)

THz products:
THz Spectrometer kit with Antenna
THz transmission setup
THz detectors: Golay cell and LiTaO3 piroelectric detectors
PCA - Photoconductive Antenna as THz photomixer
Pacifica THz Time Domain Spectrometer - Trestles Pacifica
Holographic Fourier Transform Spectrometer for THz Region
Wedge TiSapphire Multipass Amplifier System - THz pulses generation
Terahertz Spectroscopic Radar Mobile System for Detection of Concealed Explosives
Band pass filters with center wavelengths from 30 THz into GHz range
Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range
Generation of THz radiation using lithium niobate
Terahertz crystals (THz): ZnTe, GaP, LiNbO3 - Wedge ZnTe

Related Del Mar Photonics products

If you can't find information about the products that you are looking for just e-mail our Sales Team and we'll e-mail or call you back right away!

Trestles LH femtosecond lasers with integrated DPSS DMPLH laser pump - DPSS DMP LH series advantages

Trestles LH10-fs/CW laser system at UC Santa Cruz Center of Nanoscale Optofluidics

Del Mar Photonics Tresltes LH laser used for STED microscopy of nanodiamons

 

 

Terahertz Spectroscopy: Principles and Applications (Optical Science and Engineering) ~ Susan L. Dexheimer

The development of new sources and methods in the terahertz spectral range has generated intense interest in terahertz spectroscopy and its application in an array of fields. Presenting state-of-the-art terahertz spectroscopic techniques, Terahertz Spectroscopy: Principles and Applications focuses on time-domain methods based on femtosecond laser sources and important recent applications in physics, materials science, chemistry, and biomedicine.
The first section of the book examines instrumentation and methods for terahertz spectroscopy. It provides a comprehensive treatment of time-domain terahertz spectroscopic measurements, including methods for the generation and detection of terahertz radiation, methods for determining optical constants from time-domain measurements, and the use of femtosecond time-resolved techniques. The last two sections explore a variety of applications of terahertz spectroscopy in physics, materials science, chemistry, and biomedicine.

With chapters contributed by leading experts in academia, industry, and research, this volume thoroughly discusses methods and applications, setting it apart from other recent books in this emerging terahertz field.

 
Principles of Terahertz Science and Technology (Lecture Notes in Physics) ~ Yun-Shik Lee

Principles of Terahertz Science and Technology aims to elucidate the fundamentals of THz technology and science for potential new users. It surveys major techniques of generating, detecting, and manipulating THz waves and also discusses a number of essential processes where THz waves interact with physical, chemical, and biological systems. This book serves as an introduction to THz technology for new researchers in various fields.

Many different disciplines, such as ultrafast spectroscopy, semiconductor device fabrication, bio-medical imaging and more, involve the recent development of THz technology. It is necessary to lay down a strong, common foundation among researchers, so that communication can proceed smoothly. Previous THz research activities have concentrated on generation and detection, but the focus has now shifted to practical applications of this technology, such as high-speed optoelectronic signal processing and molecular spectroscopy.

Drawing upon years of practical experience and using numerous examples and illustrative applications Yun-Shik Lee discusses:

The major techniques of generating, detecting, and manipulating THz waves
Essential processes where THz waves interact with physical, chemical, and biological systems
Medical Applications of T-Ray Imaging including, optical properties of human tissue, cancer diagnostics, reflective imaging of skin burns and detection of dental caries
Principles of Terahertz Science and Technology is an ideal book for applied physicists, microwave engineers, biomedical engineers, electrical engineers, and analytical chemists interested in the fundamentals and applications of THz engineering.

 
Terahertz Science And Technology For Military And Security Applications (Selected Topics in Electronics and Systems) ~ Dwight L. Woolard

The inherent advantages and potential payoffs of the terahertz (THz) regime for military and security applications serve as an important driver for interest in new THz-related science and technology. In particular, the very rapid growth in more recent years is arguably most closely linked to the potential payoffs of THz sensing and imaging (THz-S&I).
This book presents some of the leading fundamental research efforts towards the realization of practical THz-S&I capabilities for military and security applications. Relevant subjects include theoretical prediction and/or measurement of THz spectroscopic phenomenon in solid-state materials such as high explosives (e.g. HMX, PETN, RDX, TNT, etc.), carbon-fiber composites, biological agents (e.g. DNA, RNA, proteins, amino acids) and organic-semiconductor nanostructures. Individual papers also address the effective utilization of state-of-the-art THz-frequency technology in military and security relevant scenarios such as standoff S&I, screening of packages and personnel, and perimeter defense. Technical papers introduce novel devices and/or concepts that enhance THz source and detector performance, enabling completely new types of sensor functionality at THz frequency (e.g. detection at nanoscale/molecular levels), and defining new and innovative sensing modalities (e.g. remote personnel identification) for defense and security. Therefore, the collective research presented here represents a valuable source of information on the evolving field of THz-S&I for military and security applications.

  Terahertz Optoelectronics ~ Sakai, Kiyomi

The book presents recent and important developments in the field of terahertz radiation with a particular focus on pulsed terahertz radiation. Situated in the gap between electronics and optics, the terahertz frequency range of the electro-magnetic spectrum has long been neglected by scientists and engineers due to a lack of efficient and affordable terahertz sources and detectors. The advent of femtosecond lasers in the 1980s and photoconductive switches in 1984 have made the terahertz gap accessible, while at the same time advances in electronics and optics have made it narrower. Research activities in terahertz frequencies have risen dramatically since that time, funding has increased by a factor of 100 in the last decade. The reviews by leading experts are of interest to researchers and engineers as well as advanced students.

  Intense Terahertz Excitation of Semiconductors ~ S. G. Ganichev

Product DescriptionIntense Terahertz Excitation of Semiconductors presents the first comprehensive treatment of high-power terahertz applications to semiconductors and low-dimensional semiconductor structures. Terahertz properties of semiconductors are in the center of scientific activities because of the need of high-speed electronics. This research monograph bridges the gap between microwave physics and photonics. It focuses on a core topic of semiconductor physics providing a full description of the state of the art of the field.
The reader is introduced to new physical phenomena which occur in the terahertz frequency range at the transition from semi-classical physics with a classical field amplitude to the fully quantized limit with photons. The book covers a wide range of optical, optoelectronic, and nonlinear transport processes, presenting experimental results, clearly visualizing models and basic theories. Background information for future work and exhaustive references of current literature are given. A particularly valuable feature is the thorough discussion of various technical aspects of the terahertz range like the generation of high-power coherent radiation, optical components, instrumentation, and detection schemes of short intense pulses. The book complements, for the first time in form of a monograph, previous books on infrared physics which dealt with low-power optical and opto-electronic processes. It will be useful not only to scientists but also to advanced students who are interested in terahertz research.

 
Terahertz Frequency Detection and Identification of Materials and Objects ~ R.E. Miles

Terahertz frequency sensing has a unique part to play in the detection and identification of materials and objects. This frequency range, corresponding to a wavelength of around 0.1 mm, can be used to identify materials from their molecular spectra and to produce images of concealed objects. Terahertz spectra of drugs of abuse and explosives presented by a number of the contributing authors show that the presence of these materials can be detected in envelopes, packages and through clothing.

The technology of terahertz detection has largely been developed around expensive and bulky femtosecond laser systems but, as described in this book, advances in semiconductor superlattice technology are leading to compact 揺lectronic?sources such as the quantum cascade laser, two-terminal 揋unn?type oscillators and even a THz frequency amplifier. These advances towards electronic (as opposed to optical) THz systems mean that the technology will become portable and much less costly.

Terahertz remote sensing is also discussed with the possibility of detection over distances of up to 30m using existing technology or even through the use THz waves generated locally in the vicinity of a target using only air as the transducer.

Band pass filters with center wavelengths from 30 THz into GHz range

Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range

Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@www.alaindidierweill.com
www.twitter.com/TiSapphire

护士被强奷系列视频_黄色电影片_黄色视频网