**Core Concept**
Nd: YAG (Neodymium-doped Yttrium Aluminum Garnet) lasers are a type of solid-state laser that emit light in the near-infrared spectrum. The wavelength of a laser is critical in determining its applications, particularly in medical and surgical procedures.

**Why the Correct Answer is Right**
Nd: YAG lasers emit light at a specific wavelength of 1064 nm, which is absorbed by water, hemoglobin, and other chromophores in tissues. This property allows Nd: YAG lasers to be used in various medical applications, including laser lithotripsy, skin resurfacing, and retinal photocoagulation. The 1064 nm wavelength is also less likely to cause thermal damage to surrounding tissues, making it a safer choice for certain procedures.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not match the known wavelength of Nd: YAG lasers.
**Option B:** This option is incorrect because it suggests a wavelength that is too short for Nd: YAG lasers, which would be more typical of CO2 lasers.
**Option C:** This option is incorrect because it suggests a wavelength that is too long for Nd: YAG lasers, which would be more typical of diode lasers.

**Clinical Pearl / High-Yield Fact**
When working with lasers, it's essential to consider the specific wavelength and its interaction with tissues to achieve the desired outcome. Nd: YAG lasers are particularly useful for procedures that require selective photocoagulation or ablation of tissues.

**Correct Answer: C. 1320 nm is the wavelength of a Diode laser, not Nd:YAG, which emits at 1064 nm.