The Tunable Lasers and Applications Conference was held in Loen, Norway, on June 6-11, 1976. This conference dealt with the technology of tunable lasers from the vacuum ultraviolet to the far infrared and their application in the areas of photochemistry, chemical kinetics, isotope separation, at­ mospheric photochemistry and environmental studies, photobiology, and spec­ troscopy. The need for such a conference grew out of the rapidly expanding use of tunable lasers in a broad range of disciplines. The conference was attended by 130 scientists representing Japan, Italy, West Germany, Canada, Israel, France, England, Norway, Sweden, Brazil, Den­ mark, Finland, the Netherlands, the Soviet Union, and the United States. The location of the conference in Loen, Nordfjord, was chosen because of the magnificent beauty of its aqua-blue fjords surrounded by glacier-capped mountains and lush green hillsides. The Alexandra Hotel was a perfect host for such a conference with first class services, superb smorgesbord, and ex­ cellent audio-visual facilities. The atmosphere was free of distractions and provided for a relaxed interchange of ideas. An afternoon hike was arranged to the Briksdal glacier while the highlight of the outdoor activities was a bus-ship excursion to the magestically splendid Geiranger fjord. A sumptuous banquet was followed by an interesting'and entertaining illustrated talk on high-speed and underwater photography by Professor Harold Edgerton from MIT. Financial support from our sponsors is gratefully acknowledged in help­ ing to make this conference a complete success.

I. Tunable and High Energy UV-Visible Lasers.- Tunable Coherent VUV Radiation.- High Efficiency UV Lasers.- Tunable VUV Excimer Laser Systems.- Dye Laser Technology.- II. Tunable IR Laser Systems.- Scalable Tunable IR Lasers.- Parametric Oscillators.- Tunable Infrared Generation in Molecular Gases.- Tunable High Power Raman Lasers and Their Applications.- Efficient High-Power 8.62 ?m Infrared Radiation Source for Uranium Isotope Separation in UF6.- III. Isotope Separation and Laser Driven Chemical Reactions.- Laser Chemistry at Surfaces.- The Photophysics and Photochemistry of Formaldehyde.- Future Applications of Selective Laser Photophysics and Photochemistry.- Uranium Isotope Separation and its Demand on Laser Development.- IV. Nonlinear Excitation of Molecules.- Dissociation of Polyatomic Molecules by an Intense Infrared Laser Field.- Collisionless Dissociation of Polyatomic Molecules by Multiphoton Infrared Absorption.- Laser Excitation of Molecules to High States of Vibration.- Double Resonance and Energy Transfer in Sulfur Hexafluoride.- V. Laser Photokinetics.- Laser Induced Collisions.- Application of Picosecond Laser Pulses to the Determination of Vibrational Time Constants of Polyatomic Molecules in Liquids.- Optical Coherent Transients by Laser Frequency-Switching.- Relaxation in Macroscopic System: An Information Theoretic Approach.- VI. Atmospheric Photochemistry and Diagnostics.- Tropospheric Photochemical and Photophysical Processes.- Photochemistry in the Stratosphere.- Remote Sensing Using Tunable Lasers.- VII. Photobiology.- Resonance Raman Spectroscopy: Application of Tunable Lasers to the Study of the Molecular Mechanisms and Dynamics of Visual Excitation.- Laser-Induced Fluorescence of Biological Molecules.- Fluorescence Spectroscopy Applied toDynamics and Structure of Biopolymers.- VIII. Spectroscopic Applications of Tunable Lasers.- Applications of High Resolution Laser Spectroscopy.- Applications of Far Infrared Lasers.- Tunable Laser Spectroscopy in Mineral Prospecting.- Study on Phase-Matching Characteristics of Optical Second Harmonic Generation in Nonlinear Thin-Film Waveguides Using a Tunable Parametric Oscillator.- Control Techniques for CW Dye Lasers.- Optically Pumped Gas Lasers.- Cars Techniques and Applications.- Development of Cars for Measurement of Molecular Parameters.- List of Participants.