Case Study CS-LDTC16 Rev. A

Page 5

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KEYWORDS

CO-LITES, quartz tuning fork, QTF, spectroscopy,

carbon monoxide, CO, gas sensing, QCL, QCL driver,

temperature controller, parts per quadrillion, ppq,

semiconductor manufacturing, energy innovation

PRODUCTS USED

QCL1500 LAB, TC10 LAB

REVISION HISTORY

Document Number: CS-LDTC16

REVISION

DATE

NOTES

A

June 2025

Initial Release

REFERENCES

1. Sun, H., Qiao, S., He, Y., Sun, X., Ma, Y. Parts-per-

quadrillion level gas molecule detection: CO-LITES

sensing. Light: Science & Applications,

14, 180 (2025).

https://doi.org/10.1038/s41377-025-01864-4

USEFUL LINKS

•

QCL1500 LAB Product Page

•

TC10 LAB Product Page

PERMISSIONS

Figures 1 - 6 in this case study were obtained from

Reference 1. The article (Ref. 1) is distributed under terms

of Creative Commons Attribution 4.0 International License

(https://creativecommons.org/licenses/by/4.0/),

which

permits unrestricted use, distribution, and reproduction in

any medium, provided that you give appropriate credit to

the original authors and the source, provide a link to the

Creative Commons license, and indicate if changes were

made.

Figures 1 - 3 were cropped and the captions for Figures 1 -

3 were modified. No changes were made to the other

captions or images. They are presented here in their

original form.