{"product_id":"green-laser-pointer-532nm-class-iiia-5mw","title":"Green Laser Pointer — 532nm, Class IIIa, 5mW","description":"\u003cp\u003e\u003cstrong\u003eAt 532nm, the human eye is near peak sensitivity — a 5mW green laser appears 50× brighter than a red laser of identical power.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e532nm is produced by frequency-doubling a 1064nm Nd:YAG infrared laser through a KTP nonlinear crystal. The physics is elegant: two 1064nm photons combine to produce one 532nm photon via second-harmonic generation. Used in laser optics demonstrations, alignment, astronomy (star-pointing), and Raman spectroscopy. Class IIIa: safe with precautions, visible beam in dust or fog.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWavelength: 532nm | Power: ≤5mW (Class IIIa)\u003c\/li\u003e\n\u003cli\u003eRange: visible to 500m+ in low light\u003c\/li\u003e\n\u003cli\u003ePowered by 2×AAA batteries | Push-button operation\u003c\/li\u003e\n\u003cli\u003eCE and RoHS certified\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eEvery purchase directly funds independent physics research at the Golden Physics Project.\u003c\/em\u003e\u003c\/p\u003e","brand":"Golden Physics Project","offers":[{"title":"Default Title","offer_id":54143147409700,"sku":"GPP-GREEN-LASER","price":34.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2879\/9524\/files\/spue03366_800_800.jpg?v=1780680516","url":"https:\/\/shop.goldenphysics.org\/products\/green-laser-pointer-532nm-class-iiia-5mw","provider":"Golden Physics Project","version":"1.0","type":"link"}