آخرین محصولات

Thermal lensing in silver gallium selenide parametric ...

We performed an experimental investigation of thermal lensing in silver gallium selenide (AgGaSe(2)) optical parametric oscillator crystals pumped by a 2-µm laser at ambient temperature. We determined an empirical expression for the effective thermal focusing power in terms of the pump power, beam diameter, crystal length, and absorption ...

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Crystal Growth and Optical Properties of AgGaS 2 and …

Silver gallium sulfide (AgGaS 2), silver gallium selenide (AgGaSe 2), and silver gallium indium selenide (AgGa x In (1 − x) Se 2) are unique nonlinear crystals suitable for a wide range of three-wave mixing applications.They combine strong nonlinear coupling with phase matching across a wide (0.5 − 12.5 μ m) transmission range. These properties provide the basis for CO 2 laser harmonic ...

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Synthesis of Silver Gallium Selenide (AgGaSe 2 ) Nanotubes ...

Synthesis of Silver Gallium Selenide (AgGaSe 2) Nanotubes and Nanowires by Template-Based Electrodeposition Buy Article: $107 ... We also found that it was necessary to increase dramatically the concentration of the gallium precursor into the deposition bath in order to obtain AgGaSe 2 owing to lower redox potential of the Ga 3+ /Ga couple than ...

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Silver Gallium Selenide (AgGaSe2) Crystals Market Report ...

Global Silver Gallium Selenide (AgGaSe2) Crystals Market report provides market overview, research methodology, market landscape and its growth prospects over the coming years. The key...

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L8 Y - cambridge

AgGaSe 2 Gary C. Catella and David Burlage Introduction Silver gallium sulfide (AgGaS 2), sil-ver gallium selenide (AgGaSe 2),1 and silver gallium indium2 selenide (AgGa v In (i A) Se 2) are unique nonlinear crystals suitable wid fore rang a e of three-wave mixing applications.3 They combine strong nonlinear coupling with phase matching acros ...

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Continuously tunable, 6-14 µm silver-gallium selenide ...

An angle tuned silver gallium selenide (AgGaSe 2 ) optical parametric oscillator (OPO), pumped by the fixed wavelength 1.57 μm output of a noncritically phase-matched KTiOPO 4 OPO, yielded radiation continuously tunable from 6 to 14 μm. Energies of up to 1.2 mJ/pulse with bandwidths of ̃5 cm -1 (full width at half-maximum) were obtained using a 6.5×6.5×35.3 mm long, type I AgGaSe2 ...

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Crystals | Free Full-Text | Investigation of Mid-Infrared ...

Extensive experimental studies of mid-IR laser sources using chalcopyrite semiconductors (e.g., silver thiogallate (AgGaS 2, AGS), silver gallium selenide (AgGaSe 2, AGSe), cadmium silicon phosphide (CdSiP 2, CSP), and zinc germanium phosphide (ZnGeP 2, ZGP)), defect chalcopyrite crystals (e.g., mercury thiogallate (HgGa 2 S 4, HGS) and cadmium ...

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Telluride quaternary nonlinear optic materials - The ...

The alloy Silver Gallium Selenide, AgGaSe 2, in single crystal embodiment is presently considered the state-of-the-art carbon dioxide laser frequency doubling crystal, the preferred crystal for use in laser wavelength change devices such as an optical parametric oscillator, a second harmonic generator or a difference frequency generator (i.e ...

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Silver Gallium Sulfide and Silver Gallium Selenide

Silver Gallium Sulfide and Silver Gallium Selenide (Table of Material Properties appears below) AgGaSe 2 (AGSe) has been demonstrated to be an efficient frequency doubling crystal for infrared radiation such as the 10.6μm output of CO 2 lasers (11). It has also been shown to be an excellent crystal for nonlinear three-wave interactions.

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Efficient, single-axial-mode operation of a monolithic MgO ...

such as silver gallium selenide (AgGaSe2) have been used for broadly tunable mid-infrared OPO's.7 OPO's are also widely used in studies on squeezed states of light.8'0 We report here on the stable cw single-mode operation of a doubly resonant OPO pumped by …

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(PDF) Continuous-wave tunable 8.7-μm spectroscopic source ...

Tunable narrow-band cw difference-frequency generation at 8.7 microm was demonstrated in silver gallium selenide (AgGaSe(2)) at room temperature. The crystal was pumped by …

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Continuous-wave tunable 8.7-microm spectroscopic source ...

|a Tunable narrow-band cw difference-frequency generation at 8.7 microm was demonstrated in silver gallium selenide (AgGaSe(2)) at room temperature. The crystal was pumped by an injection-seeded Er/Yb-codoped fiber amplifier at 1.554 microm and a fiber-coupled diode-pumped monolithic ring Nd:YAG laser at 1.319 microm.

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Silver Gallium Selenide | AMERICAN ELEMENTS

Silver Gallium Selenide (AGSe) is a non-linear optical crystal for frequency doubling of IR radiation, especially for CO 2 lasers. American Elements can produce most materials in high purity and ultra high purity (up to 99.99999%) forms and follows applicable ASTM testing standards; a range of grades are available including Mil Spec (military grade), ACS, Reagent and Technical Grade, Food ...

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Silver Gallium Selenide (AgGaSe2) Silver Gallium Sulfide ...

Publisher Summary. This chapter summarizes the optical properties of silver gallium selenide (AgGaSe2) and silver gallium sulfide (AgGaS2). These are I-III-VI2 compounds that belong to the chalcopyrite family. All these compounds have space-group symmetry and are considered as derived from II-VI binary zincblende semiconductors.

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Continuously tunable, 6–14 μm silver-gallium selenide ...

An angle tuned silver gallium selenide (AgGaSe 2) optical parametric oscillator (OPO), pumped by the fixed wavelength 1.57 μm output of a noncritically phase-matched KTiOPO 4 OPO, yielded radiation continuously tunable from 6 to 14 μm.

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AIR FORCE INSTITUTE OF TECHNOLOGY

orientation-patterned gallium arsenide optical parametric oscillator thesis michael d. harm, captain, usaf afit/geo/enp/02-01 department of the air force air university air force institute of technology wright-patterson air force base, ohio approved for public release; distribution unlimited.

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GaSe - Gallium selenide for SHG and OPO in infrared ...

Galium selenide (GaSe) is hexagonal crystal mostly used for second harmonic generation (SHG) in far infrared (FIR) wavelengths. Gallium selenide has extremely low Mohs hardness, which makes it very fragile and eliminates possibility to apply mechanical treatment or coatings. 3photon could offer GaSe crystals cut along optical axis Z with cleaved surfaces.

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Global Silver Gallium Selenide (AgGaSe2) Crystals Market ...

According to this latest study, the 2021 growth of Silver Gallium Selenide (AgGaSe2) Crystals will have significant change from previous year. By the most conservative estimates of global Silver Gallium Selenide (AgGaSe2) Crystals market size (most likely outcome) will be a year-over-year revenue ...

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Elastic constants and thermal fracture of AgGaSe sub 2 and ...

OSTI.GOV Journal Article: Elastic constants and thermal fracture of AgGaSe sub 2 and d-lap

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2-um-pumped 8-12-um OPO source for remote chemical sensing ...

A 100 Hz, optical parametric oscillator (OPO) lidar breadboard is designed, built and tested for remote chemical sensing in the 8 - 12 micrometers range. Continuous tuning is achieved by angle tuning a type II, silver gallium selenide (AgGaSe 2) OPO crystal pumped in a single step by a 2.088-micrometers pump laser. The pump source for the OPO ...

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Synthesis of Silver Gallium Selenide (AgGaSe2) Nanotubes ...

Synthesis of Silver Gallium Selenide (AgGaSe2) Nanotubes and Nanowires by Template-Based Electrodeposition . ... of the different parameters that control the electrodeposition processes was carried out at the aim to synthetizing AgGaSeu2082 nanostructures. We found that pH is a key parameter to control both the morphology and composition of ...

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Continuous-wave optical parametric oscillation tunable up ...

This device is based on a 3.5-mm-diameter whispering gallery resonator made of silver gallium selenide (AgGaSe 2) pumped by a compact distributed feedback laser diode emitting at the 1.57 μm wavelength. The oscillation thresholds are in the mW region, while …

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2-um laser damage and 3-6 um optical parametric ...

We have demonstrated a silver gallium selenide (AgGaSe 2) based optical parametric oscillator (OPO) tunable from 2.75 micrometers to longer than 6 micrometers (limited by the measuring spectrometer) with greater than 1 mJ per pulse output energy in this range.The crystal used was 8 X 8 X 27 mm. We used a 60 mJ, near Gaussian, 2.09 micrometers chromium, thulium, holmium doped YAG …

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Continuous-wave tunable 8.7-microm spectroscopic …

Tunable narrow-band cw difference-frequency generation at 8.7 microm was demonstrated in silver gallium selenide (AgGaSe(2)) at room temperature. The crystal was pumped by an injection-seeded Er/Yb-codoped fiber amplifier at 1.554 microm and a fiber-coupled diode-pumped monolithic ring Nd:YAG laser at 1.319 microm.

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Continuously tunable, 6{endash}14 {mu}m silver-gallium ...

An angle tuned silver gallium selenide (AgGaSe{sub 2}) optical parametric oscillator (OPO), pumped by the fixed wavelength 1.57 {mu}m output of a noncritically phase-matched KTiOPO{sub 4} OPO, yielded radiation continuously tunable from 6 to 14 {mu}m. Energies of up to 1.2 mJ/pulse with bandwidths ...

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Lawrence Berkeley National Laboratory

silver gallium selenide, AgGaSe 2 (AGSe). We have used the new LIS OPA to perform surface-specific sum frequency generation (SFG) vibrational spectroscopy of the Amide I vibrational mode of a model peptide at the hydrophobic deuterated polystyrene ( d8-PS)/ phosphate buffered saline interface. This model polypeptide (which is known to be an α-

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Preparation and formation mechanism of silver gallium ...

To prepare the pure phase of AgGaSe 2, the molar ratios of gallium ions to silver ions in the precursors were changed from 1 to 1.3 in process A.The molar ratio of gallium ions to silver ions is denoted by K.The precursors with different K were mixed with selenium powder.Fig. 2 displays the XRD patterns of the obtained powders that were selenized at 550 °C for 0.5 h with various K.

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fiND CNMAtfCTEIZTIOUi OF11 UNCLSSIFIED I'll'IIII Eon ...

sulfide and silver gallium selenide (AgGaS2 and AgGaSe 2), has resulted in high quality angle phasematched crystals of lengths up to 35 mm. The recent development of beta-barium borate (BBO) has spurred an intensive effort to grow this new material here, and a …

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(PDF) ‫ ‫‬ Study on laser frequency conversion with AGS ...

Sliver Gallium Selenide (AgGase 2) so indicated as AGS crystals are nonlinear optical (N LO) materials ha ve large ef fective non-linearity, wide spectral and specially have transmission in the ...

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Refractive index of AgGaSe2 (Silver gallium selenide, AGSe ...

Optical constants of AgGaSe 2 (Silver gallium selenide, AGSe) Boyd et al. 1972: n(o) 0.725-13.5 µm

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