H Laurance Marshall

Title: H Laurance Marshall: Innovator in Laser Technology

Introduction

H Laurance Marshall is a notable inventor based in Palo Alto, CA. He holds 2 patents that contribute significantly to the field of laser technology. His innovative work has paved the way for advancements in laser systems and applications.

Latest Patents

One of his latest patents is the "Variable frequency short cavity dye laser." This dye laser system is particularly useful for generating short pulses in response to excitation laser pulses directed to an appropriate dye contained between opposing mirrors that form a short cavity within a small, easily replaceable cell. The spacing of the mirrors is adjustable by application of a force from outside of the cell, allowing control of the frequency of the laser output. The cell is self-contained, including a dye reservoir maintained in continuous liquid communication with the cavity for providing fresh dye to it. Another significant patent is the "Laser beam control device." This device features a shutter and beam expander for diverting the output of a high power laser into an absorption body. It comprises a one-piece metallic structure having a convex spherically shaped portion adapted to be moved into the beam path for simultaneously reflecting and expanding the beam into energy absorption material.

Career Highlights

Throughout his career, H Laurance Marshall has worked with prominent companies such as GTE Sylvania Incorporated and Quantel International, Inc. His contributions to these organizations have been instrumental in advancing laser technologies.

Collaborations

He has collaborated with notable individuals in the field, including Paul H Pax and Pay H Chiu. These partnerships have further enriched his work and innovations.

Conclusion

H Laurance Marshall's contributions to laser technology through his patents and collaborations highlight his role as a significant inventor in this field. His work continues to influence advancements in laser applications and systems.