Correction to Hacking CD/DVD/Blu-ray for Biosensing

The authors have added a citation to the original source of the circuit diagrams¹ in both the published article and Supporting Information. The authors also have made a correction to the S-curve linear region and laser power in Table 1. The correct table is shown below. These oversights were made in error and do not affect any conclusions made in the original manuscript.

Table 1.

Component	Characteristic	Type	Value	Unit
Objective lens	Lens NA	CD	0.47–0.53	-
		DVD	0.6–0.66
		Blu-ray	0.85
	Laser spot size (full width at half-maximum)	CD	∼800	nm
		DVD	∼530
		Blu-ray	∼250
	S-curve linear region	CD	∼15	μm
		DVD	∼6
		Blu-ray	∼3
	Working distance (lens to disc)	CD	0.55–0.86	mm
		DVD	0.63–1.25
		Blu-ray	0.27–0.61
Semiconductor laser diode	Wavelength	CD	770–790	nm
		DVD	645–660
		Blu-ray	400–410
	Power (Average)	CD	160–1130	μW
		DVD	170–830
		Blu-ray	340–450
VCM	Working distance	x-axis	±350	μm
		z-axis	±1,000	μm
		Tilt	±1	°
PDIC	Operation bandwidth	CD	25–90	MHz
		DVD	50–130
		Blu-ray	110–400

Supporting Information Available

The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acssensors.2c01529.

• SI with additional reference. (PDF)