Phase-matched submillimeter wave generation by difference-frequency mixing in ZnGeP2

Boyd, G. D.; Bridges, Thomas J.; Patel, C. K. N.; Buehler, E.

doi:10.1063/1.1654255

Cited by 134 publications

(39 citation statements)

References 13 publications

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“…Therefore, applications such as basic and applied physics, biological, medical, communications, and security using THz waves are anticipated [1,2]. A THz-wave source that uses a nonlinear optical (NLO) process has been achieved to realize these applications [3][4][5][6]. However, these sources were limited in their tunability by the NLO material characteristic.…”

Section: Introductionmentioning

confidence: 98%

Coherent tunable monochromatic Terahertz-wave generation using N-Benzyl-2-methyl-4-nitroaniline (BNA) crystal

Miyamoto

Minamide

Fujiwara

et al. 2008

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII

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Widely tunable terahertz (THz) -wave generation using difference frequency generation (DFG) in an organic N-Benzyl-2-methyl-4-nitroaniline (BNA) crystal was demonstrated. An organic nonlinear optical (NLO) BNA crystal is one of the promising materials for efficient and strong THz-wave generation because of its potential to have a sufficiently large enough second-order optical nonlinearity. Large and high quality single crystals of BNA (φ8×30mm) were successfully grown by a vertical Bridgman method. The NLO coefficient d 33 of BNA crystal is about 230pm/V. It is the largest value reported for any yellow-colored NLO materials. BNA has low refractive index dispersion between the optical and THzwave region, therefore the colinear phase matching condition of the Type0 configuration is satisfied by using 0.7~1µm band pump wavelength. So, we developed a near-infrared dual-wavelength pump source for BNA-DFG. Two KTiOPO 4 (KTP) crystals were mounted on galvano scanners inside a double-pass optical parametric oscillator (OPO). It is pumped using a frequency-doubled Nd:YAG laser (532 nm, 8 ns, 100 Hz). The signal wave of the KTP-OPO output was controlled independently and rapidly using a galvano scanner. We successfully generated THz-wave using organic BNA crystal. The THz-wave generation range is from 0.1 to 15THz, while the pumping dual-wavelength is controlled in the 0.8-0.9µm range.

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Section: Introductionmentioning

confidence: 98%

Coherent tunable monochromatic Terahertz-wave generation using N-Benzyl-2-methyl-4-nitroaniline (BNA) crystal

Miyamoto

Minamide

Fujiwara

et al. 2008

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII

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“…In the early of 60', Nishizawa predicted that THz-wave would be generated via the resonance of lattice and molecular vibrations [1]. Recently, a parametric process based on second-order nonlinearities has been used to generate tunable monochromatic coherent THz-waves using nonlinear optical (NLO) crystals [2][3][4][5][6][7]. Among a way to generate THz-wave via nonlinear optical down-conversion processes, difference frequency generation (DFG) has big advantages, it is easy to tune and wide tunability and high power output could be obtained.…”

Section: Introductionmentioning

confidence: 99%

Random frequency accessible broad tunable THz-wave source using phase-matched DAST crystal DFG

Suizu

Nawahara

Yamashita

et al. 2006

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications V

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Ultra broad band (from 1.5 to 37 THz) THz-wave generation using difference frequency generation (DFG) in an organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystal was demonstrated. A DAST crystal is one of the promising materials for efficient and high power THz-wave generation, because of its very high nonlinearity and low refractive index dispersion between the near infrared region and the THz-wave region. We can use DAST's highest nonlinear component of, d 11 (about 230pm/V), to generate THz-wave with by means of DFG, because the co-linear phase matching condition of the Type0 configuration is satisfied. We constructed a dual-wavelength optical parametric oscillator (OPO) with two KTP crystals pumped by frequency doubled Nd:YAG laser. Each KTP crystal was set on a Galvano scanner and the angle of each crystal was controlled independently. The OPO has a tunable range from 1300 -1900 nm, results in an ultra broad tunable range of the THz-wave. We successfully generated ultra broad tunable THz-wave just using only one DAST crystal without any change of the experimental setup, except the computer controlled Galvano scanner angle change. The Hhighest THz-wave energy of 10 nJ was obtained at around 26 THz region under 2 mJ of pumping energy. And also, the THz-wave source can access an arbitral THz frequency at for every pulse (50 Hz at present). The Galvano scanner has a 1 kHz of responsibility response and we would obtain 1 msec of frequency access speed.

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“…Both these sources of loss disappear at low temperature leaving the ultimate limit as the wing of the lowest frequency polar lattice band. ZnGeP, is the only ternary compound for which a submillimetre trai~snzission measurement has been made [25]. This showed that at room temperature ZnGeP, has a useful transmission, loss'coefficient a < 6 cm-' for wavelengths longer than 100 pm (note : cc < 3 cm-' is the more usually adopted transmission limit).…”

Section: Conductionmentioning

confidence: 99%

Device Applications of the Ternary Semiconducting Compounds

Smith

1975

J. Phys. Colloques

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Rhumk. -Une revue retrospective gknkrale et quelques progres recents des dispositifs mettant en cruvre des composes ternaires 11-IV-V2 et I-111-V12 a structure chalcopyrite sont presentts.L'accent principal est mis sur les dispositifs optotlectroniques. Les sujets traites recouvrent les caracteristiques optiques et Clectroniques, les dispositifs optiques non lineaires melangeurs de frequences, les modulateurs Clectrooptiques, les lasers, les diodes electroluminescentes et les photodttecteurs.Abstract. -A review is presented of the general background and recent progress in device application of the ternary chalcopyrite 11-IV-V2 and I-111-V12 compounds. The main emphasis is on dcvices for optical and quantum electronics.

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Phase-matched submillimeter wave generation by difference-frequency mixing in ZnGeP2

Cited by 134 publications

References 13 publications

Coherent tunable monochromatic Terahertz-wave generation using N-Benzyl-2-methyl-4-nitroaniline (BNA) crystal

Coherent tunable monochromatic Terahertz-wave generation using N-Benzyl-2-methyl-4-nitroaniline (BNA) crystal

Random frequency accessible broad tunable THz-wave source using phase-matched DAST crystal DFG

Device Applications of the Ternary Semiconducting Compounds

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