Author: Robert Chimenti

RPMC Lasers Blog

Flow Cytometry

Flow cytometry is a method for simultaneously analyzing multiple physical properties of an individual cell as it flows through a beam of light in a fluid stream, including the cells size and fluorescence.   In practice, flow cytometry is essentially a...

Read More

Laser Diode Fundamentals: Single Longitudinal Mode Diodes

In the last installment of our Laser Diode Fundamentals series, we took a deep dive into the underlying physical properties behind the longitudinal mode structure of laser diodes.  In that blog post, we explained the advantages and disadvantages to...

Read More

Er-YAG 2.94 Micron

Flashlamp pumped pulsed Er:YAG lasers have been widely utilized in dermatology and dentistry as an alternative to CO2 lasers, but historically continuous wave (CW) and quasi-continuous wave (QCW) Er:YAG lasers were problematic due to their unique...

Read More

New App Note Methane Detection with TDLAS

After a small hiatus, we here at RPMC Lasers are excited to bring you a new application note.  This one titled “Lasers Sources for Tunable Diode Laser Absorption Spectroscopy Detection (TDLAS) of Methane Gas” explores the importance of methane...

Read More

Diodes for Optical Tweezers

Micromanipulation of sub-millimeter objects is one of the more underappreciated technical challenges in modern scientific research.   To fully understand their properties, objects such as dielectric spheres, viruses, bacteria, living cells,...

Read More

Laser Texturing

Injection molding is a widely used process for rapidly mass-producing low cost highly uniform mechanical parts.  On a cursory level, it is a relatively straight forward process by which molten material (metal, glass, polymer, etc.) is injected into a...

Read More

Diodes for 3D Printing

Additive manufacturing, or as its more commonly referred - 3D printing, has revolutionized manufacturing processes over the past ten years.  This technology which was once reserved for high-end research and prototyping applications is now so...

Read More

Lasers For Tattoo Removal

Nearly one-third of all Americans have at least one tattoo, and of those who do roughly one-quarter of them say they regret getting it.  As a result, nearly 27 million people in the United States alone have at least one unwanted tattoo.   Based on...

Read More

First Ever Image of a Black Hole in the Center of the M87 Galaxy.

On April 10th, the scientific community was elated at the release of the first-ever image of a black hole in the center of the M87 galaxy in the Virgo Cluster.  By Imaging the photon ring around the black hole shadow and utilizing the Schwarzschild...

Read More

Digital Holographic Microscopy

Holography is simultaneously one of the most well-known and yet most misunderstood optical techniques.  The word hologram derives from the combination of two different Greek words “holo” meaning “whole” and “gram” meaning “drawing.”  Understanding the...

Read More

Optical Particle Counting

Optical particle counting is widely deployed in cleanrooms around the world as a means for counting and sizing the number of particles in the air.  Most people who have ever worked in a clean room, are familiar with the Federal Standard 209E cleanroom...

Read More

Diodes for Acne Treatment

According to the American Association of Dermatology (AAD), acne is the most common skin condition in the United States, affecting up to 50 million Americans annually with a nontrivial percentage suffering from a chronic form of the condition. ...

Read More

Laser Diode Fundamentals: Understanding Longitudinal Modes

There are two critical parameters that all lasers diodes must meet to begin the lasing process.  The first one of these parameters is that there must be more gain than loss inside the laser cavity, the point at which this condition is satisfied is...

Read More

New White Paper: Single frequency fiber lasers for Doppler Lidar

At RPMC we are excited to announce the release of our newest lidar white paper titled "Single Frequency Fiber Lasers for Doppler Lidar."  Doppler lidar takes advantage of the fact that when light interacts with moving object, it experiences a...

Read More

Two-Photon Microscopy at the Harvey Lab - Harvard medical School

Last summer we released a white paper titled "How Mode-Locked Lasers Affect the Past, Present, and Future of Two-Photon Microscopy" which reviewed in detail the evolution of two-photon microscopy, with a particular focus on its usefulness in producing...

Read More

What Laser to use for TOF-MS

Mass spectrometry is an extremely powerful analytical tool for chemical analysis, which is widely utilized in applications ranging from forensics to pharmaceuticals, because of its ability to detect the atomic constituents of an analyte but also...

Read More

New App Note Understanding Laser Diode Lifetime

Building upon the success of our widely popular whitepaper titled “How to Improve Laser Diode Lifetime! Advice and Precautions on Mounting,” we at RPMC Lasers, have decided to expand on this topic offering a brand-new application note titled...

Read More

Laser Hair Removal

Laser hair removal is one of the most popular medical laser applications worldwide and is projected to reach 1.35 billion dollars annually by the year 2022 according to Transparency Market Research. As this market started to explode in the early...

Read More

The Influence of Laser Wavelength on Raman Spectroscopy

As discussed in previous posts, Raman spectroscopy is a rapidly growing analytical technique used in a wide variety of industries for material identification, but with so many different laser options it can be somewhat challenging to understand which...

Read More

Laser Diode Fundamentals: Beam Properties

Whether a diode laser is a traditional monolithic design or utilizes an external cavity configuration, the laser light must still propagate through the diode’s PN-junction via a ridge waveguide.   As a result, the beam profile of edge emitting diodes...

Read More

Photonics West Highlights

Last week RPMC Lasers, was proud to show our support for the photonics community once again by exhibiting this year at SPIE’s Photonics West conferences in San Francisco.  It was a great event this year, especially with the completion of the recent...

Read More

Red Laser Diodes for Photodynamic Therapy

Photodynamic therapy (PDT) is a common term in the medical community which has been used to describe treatments ranging from near-infrared laser-induced vascular dilatation to photo-thermal excitation of nanorods embedded in cancer tumors.    For the...

Read More

Fiber Lasers for Industrial LIBS Applications

In our previous application note titled “Laser Induced Breakdown Spectroscopy (LIBS) in Biomedical Applications,” we discussed the fundamentals of the technique with a particular emphasis on the use of q-switched diode-pumped solid-state lasers as the...

Read More

The Importance of Tunable Lasers in Photoacoustic Imaging for Biomedical Applications

Laser-based techniques have been gaining more and more popularity in the medical and biomedical fields.  In previous posts, we have discussed a wide variety of such applications ranging from Laser Diode Crown Troughing in Dentistry to Laser-Induced...

Read More

InterPACK Call for Abstracts

As part of our commitment to helping to promote the latest advancements in the laser and electro-optic community, we here at RPMC Lasers would like to take a moment to shine a spotlight on one of the conferences in our community that does just that...

Read More
1 2 3
   

Recent Blogs