Frequency Stabilized GaP Continuous-Wave Terahertz Signal Generator for High-Resolution Spectroscopy
نویسندگان
چکیده
منابع مشابه
High Resolution Waveguide Terahertz Time-Domain Spectroscopy
Terahertz time-domain spectroscopy accesses the frequency range between 100 GHz and 5 THz by using the coherent generation and detection based on femtosecond laser sources. On the way to obtain fingerprint absorption spectra of molecular solids, terahertz waveguides have proven to be a valuable tool to extend the results to narrow and high resolution linewidths of crystalline solids. We will di...
متن کاملA High-power Frequency-stabilized Tunable Two-frequency Diode Laser System for Generation of Coherent Terahertz-wave by Photomixing
A tunable two-frequemcy high-power diode laser system at 850 nm for terahertz (Thz)wave generation by photomixing in lowtemperature-grown GaAs photo-conductors has been developed. The difference frequency is obtained through a three laser system, where two lasers are locked to different orders of a Fabry-Perot cavity and a third is offset-locked to the first, The difference-frequency signal is ...
متن کاملCoherent broadband continuous-wave terahertz spectroscopy on solid-state samples
Measuring the complex dielectric function ε(ω)= ε1 + iε2 of solidstate samples in the terahertz frequency range with high spectral resolution remains difficult. Using a continuous-wave terahertz spectrometer based on photomixing in the frequency range from 60GHz to 1.8 THz, we obtain the most precise data of ε(ω) reported to date for the well-studied example of α-lactose monohydrate. We are abl...
متن کاملHigh-harmonic and terahertz wave spectroscopy (HATS) for aligned molecules
We present the experimental and theoretical details of our recent published letter Huang et al (2015 Phys. Rev. Lett. 115 123002) on synchronized high-harmonic and terahertz-wave spectroscopy (HATS) from nonadiabatically aligned nitrogen molecules in dual-color laser fields. By associating alignment-angle dependent terahertz wave generation (TWG) with high harmonic generation (HHG), the angular...
متن کاملApplication of superlattice multipliers for high-resolution terahertz spectroscopy.
Frequency multipliers based on superlattice (SL) devices as nonlinear elements have been developed as radiation sources for a terahertz (THz) laboratory spectrometer. Input frequencies of 100 and 250 GHz from backward wave oscillators have been multiplied up to the 11th harmonic, producing usable frequencies up to 2.7 THz. Even at these high frequencies the output power is sufficient for labora...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics and Photonics Journal
سال: 2014
ISSN: 2160-8881,2160-889X
DOI: 10.4236/opj.2014.41002