Del Mar Photonics - Newsletter

Del Mar Photonics supply custom Silver Gallium Selenide (AgGaSe2) Crystal - request a quote. When requestion a quote please indicate dimensions, orientation, polishing and coating requirements and quantity.

Silver Gallium Selenide (AgGaSe2) Crystal

Example of the specifications for Silver Gallium Selenide (AgGaSe2) Crystal

Dimension : 10 x 10 x 20 mm(width x height x length)
[Dimension Tolerances : Width +/- 0.1mm, Height +/- 0.1mm, Length +/- 0.2mm]

Parallelism : ≤30 arc second
Propagation plane : X-Z plane
Crystal Cut : 52 degrees with Z axis for propagation in X-Z plane i.e. θ =52 deg, Φ = 0 deg
Application : Type II eoe DFG (Difference Frequency Generation)

[Note : Propagation direction to achieve phase matching for DFG with 1.9355 μm and 2.3630 μm as input to generate 10.6988 μm as output in type II (eoe) critical phase matching. In this case please identify and cut the crystal at suitable theta value and provide Sellmeier constants]

Transmitting wavefront distortion : ≤/4 @ 633 nm
Bulk damage threshold : ≥ 50 MW/cm2 at 1064 nm for 10 ns, 10Hz pulse
Surface : Optically polished (2 end faces of 10 x 10 mm)
Flatness : ≥/8 @ 633 nm
Scratch/Dig : ≤ 10/5
Coating : Broad band Anti reflection coating on 2 end faces of 10 x 10 mm
(R ≤ 1.5 % for the wavelength band 1.5-20.0 μm)
Damage threshold of coating : ≥ 50 MW/cm2 at 1064 nm for 10ns, 10Hz pulse


New Crystals from Del Mar Photonics:
Laser rods of Nd:YAG, Nd:YAP, Tm:YAG, Tm:YAP, Er:YAG, Er:YAP and Yb:YAG as well as Q-switches of Cr4+:YAG and V3+:YAG

Laser crystals
1. KGd(WO4)2 crystals doped with Yb3+, Nd3+, Tm3+ - request a quote
2. KY(WO4)2 crystals doped with Yb3+, Nd3+, Tm3+ - request a quote
3. YLiF4 doped with Yb3+, Tm3+, Ho3+ and other RE ions - request a quote
4. CaF2 doped with Yb3+  and other RE ions - request a quote
Saturable absorber Q-switches
1. Co2+: MgAl2O4 for Er-lasers @1.54 m - request a quote
2. V 3+ :YAG for Nd-lasers @1.3 m - request a quote
Crystals for Raman shifters
1. KGd(WO4)2 - request a quote

LiGaS2 crystals (lithium gallium sulfide) - Mid-IR optical parametric oscillator based on LiGaS2 crystal
Mid-infrared LiGaSe2 crystals - LiGaSe2 and LiInSe2 nonlinear crystals