尼日利亚采购需求：布儒斯特角、浓度梯度晶体、倍频晶体、感应炉晶体、中红外晶体、钕玻璃激光器

I'm interested in learning more about spectroscopy and its applications, as I'm considering it for potential procurement. Specifically, I'd like to understand the different types of spectroscopy available, the equipment required for each type, and how they can be used across various industries. Additionally, it would be great to have insights into the latest technological advancements in this field, including any relevant models or preferred brands that are known for reliability and accuracy. Pricing, lead times, and your recommendations on what to focus on would also be very helpful. Looking forward to your detailed response regarding this topic!