Mid-IR Imaging: Upconversion imager improves IR gas sensing

Anna-Lena Sahlberg, Zhongshan Li, Lasse Høgstedt, Peter Tidemand-Lichtenberg, Jeppe Seidelin Dam

Research output: Contribution to journalJournal articleResearchpeer-review


A nonlinear upconversion detector shows near-shot-noise-limited performance and compares favorably—while adding additional imaging information—to conventional cryogenic detectors in the measurement of trace-level gases at atmospheric pressure.
Original languageEnglish
JournalLaser Focus World
Issue number11
Pages (from-to)53-55
Publication statusPublished - 2014


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