Oscillations and stability of solitons due to cascading of optical rectification and the electro-optic effect

2002 ◽  
Author(s):  
K. Bubke ◽  
D.C. Hutchings ◽  
U. Peschel
Keyword(s):  
Optical Rectification ◽  
Electro Optic

Scaling of terahertz radiation via optical rectification in electro‐optic crystals

1995 ◽  
Vol 66 (2) ◽  
pp. 121-123 ◽  
Author(s):  
Timothy J. Carrig ◽  
G. Rodriguez ◽  
Tracy Sharp Clement ◽  
A. J. Taylor ◽  
Kevin R. Stewart
Keyword(s):  
Terahertz Radiation ◽  
Optical Rectification ◽  
Electro Optic

scholarly journals Wideband THz Time Domain Spectroscopy based on Optical Rectification and Electro-Optic Sampling

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
A. Tomasino ◽  
A. Parisi ◽  
S. Stivala ◽  
P. Livreri ◽  
A. C. Cino ◽  
...  
Keyword(s):  
Time Domain ◽  
Optical Rectification ◽  
Time Domain Spectroscopy ◽  
Electro Optic

scholarly journals Broadband Anisotropic Optical Properties of the Terahertz Generator HMQ-TMS Organic Crystal

2020 ◽  
Vol 5 (3) ◽  
pp. 47 ◽  
Author(s):  
Annalisa D’Arco ◽  
Luca Tomarchio ◽  
Valerio Dolci ◽  
Paola Di Pietro ◽  
Andrea Perucchi ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Refraction Index ◽  
Organic Crystal ◽  
Optical Rectification ◽  
Thz Radiation ◽  
Electro Optic ◽  
Crystal Properties ◽  
Linear And Nonlinear ◽  
Optical Behavior

HMQ-TMS (2-(4-hydroxy-3-methoxystyryl)-1-methylquinolinium 2,4,6-trimethylbenzenesulfonate) is a recently discovered anisotropic organic crystal that can be exploited for the production of broadband high-intensity terahertz (THz) radiation through the optical rectification (OR) technique. HMQ-TMS plays a central role in THz technology due to its broad transparency range, large electro-optic coefficient and coherence length, and excellent crystal properties. However, its anisotropic optical properties have not been deeply researched yet. Here, from polarized reflectance and transmittance measurements along the x 1 and x 3 axes of a HMQ-TMS single-crystal, we extract both the refraction index n and the extinction coefficient k between 50 and 35,000 cm − 1 . We further measure the THz radiation generated by optical rectification at different infrared (IR) wavelengths and along the two x 1 and x 3 axes. These data highlight the remarkable anisotropic linear and nonlinear optical behavior of HMQ-TMS crystals, expanding the knowledge of its properties and applications from the THz to the UV region.

scholarly journals Generation of monocycle efficient terahertz pulses by optical rectification in LiNBO3 at 800 nm

2018 ◽  
Vol 1 (1) ◽  
pp. 14
Author(s):  
Ali Khumaeni ◽  
Hideaki Kitahara, ◽  
Takashi Furuya ◽  
Kohji Yamamoto ◽  
Masahiko Tani
Keyword(s):  
Conversion Efficiency ◽  
Pump Pulse ◽  
Optical Rectification ◽  
Pulse Front ◽  
Optical Source ◽  
Znte Crystal ◽  
Terahertz Pulses ◽  
Electro Optic ◽  
Balanced Photodetector ◽  
Thz Power

Generation of efficient terahertz (THz) pulses was experimentally made by tilted pump pulse front scheme with a Mg-doped LiNbO3 crystal. In this study, a spitfire laser (Ti:sapphire laser, 800 nm, 3 mJ, 1 kHz) was used as an optical source for the generation and detection of THz pulses. The electro-optic (EO) detection optics consisting of a ZnTe crystal (1 mm in thickness) and a balanced photodetector was used. To obtain optimum THz characteristics and pump to THz power conversion efficiency, the image of the grating was made coincides with the tilted pump pulse front. The maximum THz electric field of 8.5 kV/cm and the frequency bandwidth of 2.5 THz were achieved by using pump pulse energy of 2.4 mJ and pump pulse width of 100 fs. The THz energy of 4.15 μJ was obtained and pump-to-THz conversion efficiency was estimated to be approximately 1.73 x 10-3.

TERAHERTZ OPTICAL RECTIFICATION

1995 ◽  
Vol 04 (02) ◽  
pp. 459-495 ◽  
Author(s):  
Y. H. JIN ◽  
X.-C. ZHANG
Keyword(s):  
Second Harmonic ◽  
Difference Frequency Generation ◽  
Nonlinear Process ◽  
Second Order ◽  
Optical Rectification ◽  
Temperature Dependent ◽  
Optical Absorption Band ◽  
Sum Frequency ◽  
Electro Optic ◽  
Frequency Generation

We present experimental measurements of Terahertz optical rectification in electro-optic crystals. The measured data was compared with a simple theoretical analysis (anharmonic oscillator model). We also measured Terahertz-bandwidth subpicosecond electromagnetic radiation via nearly-degenerate difference-frequency generation in electrooptic materials. The variation in Terahertz emission with crystal orientation demonstrated that the generation of Terahertz radiation via optical rectification involves a bulk second-order nonlinear process. We studied Terahertz optical rectification from zincblende crystals as the incident photon energy was tuned across the semiconductor optical absorption band-edge (resonant excitation). We also present the measurement of temperature-dependent Terahertz optical rectification. A comparison between the two second-order nonlinear processes, sum-frequency generation (second-harmonic generation) and different-frequency generation (optical rectification) is presented.

Kerr Nonlinearity via Cascaded Optical Rectification and the Linear Electro-optic Effect

1995 ◽  
Vol 74 (14) ◽  
pp. 2816-2819 ◽  
Author(s):  
Ch. Bosshard ◽  
R. Spreiter ◽  
M. Zgonik ◽  
P. Günter
Keyword(s):  
Kerr Nonlinearity ◽  
Optical Rectification ◽  
Electro Optic

Optical rectification in ammonium dihydrogen phosphate, potassium dihydrogen phosphate and quartz

1967 ◽  
Vol 299 (1457) ◽  
pp. 238-263 ◽  
Keyword(s):  
Potassium Dihydrogen Phosphate ◽  
Optical Rectification ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Yield Information ◽  
Electro Optic ◽  
Temperature Dependences ◽  
Relative Measurements ◽  
Improved Accuracy

Ammonium dihydrogen phosphate (NH 4 H 2 PO 4 ), potassium dihydrogen phosphate (KH 2 PO 4 ) and quartz each have two independent, nonzero, optical rectification coefficients. Measurements of various ratios among these coefficients are described. The uncertainty of ± 6%, achieved in the most favourable case, represents improvement by a factor of 8 over previous relative measurements of optical rectification coefficients by Bass, Franken & Ward (1965). The signs of the coefficients are determined directly for the first time. Improved accuracy makes possible a more stringent test of the theoretical relation between linear electro-optic and optical rectification coefficients which was pointed out by Armstrong, Bloembergen, Ducuing & Pershan (1962) and studied in more detail by Ward & Franken (1964). The data for NH 4 H 2 PO 4 and KH 2 PO 4 are consistent with this relation. It is thought that apparent discrepancies in the case of quartz, where the data are less accurate, are probably explained otherwise than by the breakdown of the relation. The temperature dependences in the range +20 to —120°C of both optical rectification coefficients in KH 2 PO 4 are investigated and interpreted in terms of local field factors. Optical rectification data and other data from the literature for NH 4 H 2 PO 4 , KH 2 PO 4 and quartz are discussed in relation to Kleinman’s symmetry conditions and quantum mechanical expressions for the nonlinear coefficients to yield information on the nature of the underlying processes.

Temporal solitary waves due to optical rectification and the electro-optic effect

2001 ◽  
Vol 26 (14) ◽  
pp. 1090 ◽  
Author(s):  
U. Peschel ◽  
F. Lederer ◽  
K. Bubke ◽  
D. C. Hutchings
Keyword(s):  
Solitary Waves ◽  
Optical Rectification ◽  
Electro Optic
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