Princeton Instruments has introduced the PI-MAX4:1024i-RF intensified CCD camera for frequency domain scientific imaging and spectroscopy applications.

The PI-MAX4:1024i-RF camera enables frequency domain measurements for fluorescence lifetime studies using minimal external equipment. By modulating the gain of its Gen III filmless intensifier at a radio frequency (RF) rate between 1 MHz and 200 MHz, the camera operates as a 2D lock-in amplifier. Each pixel acts as an individual phase-sensitive (lock-in) detector.

The camera features two independent built-in direct digital synthesizers. One synthesizer generates the RF to modulate the intensifier, while the other provides a user-controlled RF signal that can be used to modulate the illumination in order to accomplish RF phase-sensitive detection. An advanced graphical user interface (GUI) allows users to select modulation frequency, control phase sweep range and granularity, and set RF output p-p voltage levels. The camera is also capable of a 1 MHz sustained repetition rate, can allow two images to be captured in rapid succession, boasts system linearity, and uses a high-bandwidth GigE data interface. A built-in precision timing generator, SuperSynchro, offers time resolution of 10 ps and provides low jitter (35 ps). Independent trigger outputs eliminate the need for an external timing generator.

The camera is supported by Princeton Instruments' LightField 64-bit data acquisition software platform.

Princeton Instruments, www.princetoninstruments.com