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Thz Source

THz-Raman - Advancing Efficiency and Reliability in Pharmaceutical Analysis and Quality Control.pdf

THz-Raman - Advancing Efficiency and Reliability in Pharmaceutical Analysis and Quality Control.pdf

…ultra-low frequency Raman spectra in the ±5-200 cm-1 region
(Figure 7)viii,ix. These systems are based on a stabilized wavelength diode laser source, a compact series of
VHG filters and a single stage spectrograph (Figure 8). Each VHG filter has a notch profile that is designed to

CaseStudy Univ Regensburg final  Oct2015.pdf

CaseStudy Univ Regensburg final Oct2015.pdf

…this method of
producing CEP stabilized THz pulses relies on using
two OPAs that are completely phase correlated. The
only straightforward way to achieve this correlation is to
drive both OPAs from a single amplifier source which
must provide both the amplifier driving…

Compact Single Mode Tunable Laser Using a Digital Micromirror Device.pdf

Compact Single Mode Tunable Laser Using a Digital Micromirror Device.pdf

…discrete THz
frequencies
Minimum THz frequency
generated by one laser
Sweeping
time
mm GHz ms
3 17 136 40 204
5 32 406 29 609
6.2 40 780 19 1170
For Terahertz imaging applications, the spectral range of interest is from 100 GHz to
several THz.

SPIE-DSS-2013-Manuscript-8726-19 Final 2-1.pdf

SPIE-DSS-2013-Manuscript-8726-19 Final 2-1.pdf

…Alternatively, terahertz (THz) spectroscopy is an "absorption" technique that can be used to measure these structural modes by directly emitting radiation in the 300GHz to 6THz frequency range (10cm-1 to 200cm-1 region), and detecting the corresponding absorption spectrum. THz systems have the…

Accessing-molecular-structure-with-raman-spectroscopy.pdf

Accessing-molecular-structure-with-raman-spectroscopy.pdf

…available Raman
systems are generally limited to the spectral region starting from approximately
150 cm-1 (4.5 THz) and can extend to
more than 90 THz (3000 cm-1). Both
wavelength range and resolution are
primarily dependent on the configuration of the gratings and…

COHR THzSpectroscopyBrochure 0219 2.pdf

COHR THzSpectroscopyBrochure 0219 2.pdf

…high-power, wavelength-stabilized, single-frequency laser source is precisely matched to the
ultra narrow-band ASE, beamsplitter and notch filters to assure maximum throughput and exceptional attenuation
(>OD 9) of the excitation source. Systems are available in 532 nm, 633 nm, 785 nm,…

TR-BENCH-February-2016 web.pdf

TR-BENCH-February-2016 web.pdf

www.ondax.com THz-Raman® Spectroscopy Benchtop Module Features · Compact optical design with integrated high power single frequency laser source · Interchangeable sample interface - vial/tablet holder, steerable open beam, or contact probe tip · Fiber coupled output enables easy interface to a wide…

Microsoft Word - Coherent Whitepaper-Raman and bacteria 4-2019

Microsoft Word - Coherent Whitepaper-Raman and bacteria 4-2019

source is incident on a sample with polarizable molecules or crystals, a small portion of the molecules are left in a different quantum state and the scattered light is frequency shifted by the difference between the initial and final states. A laser is virtually always used as the light source for…

COHR AppHighlight ExplosiveDetectionAndSource Attrition 0320 5.pdf

COHR AppHighlight ExplosiveDetectionAndSource Attrition 0320 5.pdf

…fingerprints for detection and "synthetic signatures" to assist with source attribution, improved sensitivity, and reliability for even microscopic trace amounts of sample. Application Field Explosives detection, forensic analysis, source attribution, CBRNE detection and analysis, low-frequency…

Microsoft PowerPoint - Transmission Raman Accessory Datasheet Final

Microsoft PowerPoint - Transmission Raman Accessory Datasheet Final

…Mounted to TR-PROBE Module FEATURES · Sample chamber accommodates pill/tablet holders or vials · Utilizes fiber-coupled Ondax CleanLineTM Laser source from TR-PROBE module · Can be used for either transmission or backscattering measurements - even on the same sample · An included set of pill/tablet…

EU Photonics Talk Nobel Laureate Haensch.pdf

EU Photonics Talk Nobel Laureate Haensch.pdf


longer wavelengths such as the THz region. Nathalie Picqué has been the first
to show that the sensitivity of a Fourier
spectrometer can be greatly increased if
a laser frequency comb is used instead
of an incoherent light source. Even
more dramatic advances in…

Ted Haensch  Sharing His Unique Perspective on Lasers

Ted Haensch Sharing His Unique Perspective on Lasers


longer wavelengths such as the THz region. Nathalie Picqué has been the first
to show that the sensitivity of a Fourier
spectrometer can be greatly increased if
a laser frequency comb is used instead
of an incoherent light source. Even
more dramatic advances in…