Published March 1986
| Version v1
Journal article
High-frequency-modulation spectroscopy with a lead-salt diode laser
Creators
- 1. IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099
Description
For the first reported time, high-frequency optical heterodyne spectroscopy has been performed with tunable lead-salt diode lasers. N2O transitions at 1259.2 cm-1 were observed by modulating the injection current at 50--200 MHz and detecting the heterodyne beat signal generated by the frequency- and amplitude-modulated light. By proper adjustment of the rf phase in the phase-sensitive detection circuitry, the background contributions due to laser amplitude modulation could be completely suppressed. The sample induced signal is measured against zero background and detected at radio frequencies at which diode lasers have little noise
Additional details
Publishing Information
- Journal Title
- Opt. Lett.
- Journal Volume
- 11
- Journal Issue
- 3
- Series
- Opt. Lett.
- Journal Page Range
- 132-134
- ISSN
- 0146-9592
- CODEN
- OPLED
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 17051982
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- HETERODYNE RECEIVERS; LASER SPECTROSCOPY; MODULATION; NITROUS OXIDE; NOISE; SEMICONDUCTOR LASERS; TUNING
- Descriptors DEC
- AMPLIFIERS; CHALCOGENIDES; ELECTRONIC EQUIPMENT; EQUIPMENT; LASERS; MICROWAVE EQUIPMENT; NITROGEN COMPOUNDS; NITROGEN OXIDES; OXIDES; OXYGEN COMPOUNDS; RADIO EQUIPMENT; SEMICONDUCTOR DEVICES; SOLID STATE LASERS; SPECTROSCOPY